217194757 ASTM F2362 2013 Standard Specification for Temperature Monitoring Equipment

ASTM F2362

Octobre/October 2013

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PERSONAL WEBPORT Pour/For ALSTOM POWER Client/Customer 23412792 Le/The 26/02/2014 à/at 15:38

PERSONAL WEBPORT WEBPORT pour client/for customer ALSTOM POWER le/the 26/02/2014 à/at 15:38 ASTM F2362 : 2013-10

Designation: F2362 − 03 (Reapproved 2013)

An American National Standard

Standard Specification for

Temperature Monitoring Equipment1 This standard is issued under the fixed designation F2362; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense.

1. Sco Scope pe

productio produc tion n or cha change nge of an ele electr ctrica icall sig signal nal or pro proper perty ty as temperature changes. The following describes the most common types of sensors:

1.1 Thi Thiss spe specifi cificat cation ion cov covers ers the req requir uireme ements nts for equ equipipmentt int men intend ended ed to pro provid videe con contro troll inp input ut and mon monito itorin ring g of temperatures in general applications. Equipment described in this specification includes temperature indicators, signal conditioners and power supplies, and temperature sensors such as thermocouples and resistance temperature element assemblies.

4.2 Thermocouples— Thermo Thermocou couple pless are con constr struct ucted ed in a variety of designs to provide measurement of direct or differentiall tempe entia temperatur rature. e. Therm Thermocoup ocouples les are commo commonly nly insta installed lled using a thermowell which protects the thermocouple but also delays the rapid response time characteristic of thermocouples.

1.2 Speci Special al requi requiremen rements ts for Naval shipboard shipboard appli applicatio cations ns are inclu included ded in the Supple Supplementa mentary ry Requi Requiremen rements ts secti section. on.

4.2.1 Principle Most therm thermocoup ocouples les utiliz utilizee Principle of Oper Operation— ation— Most two wires fabricated from dissimilar metals joined at one end to form a measuring junction that is exposed to the process medium med ium being mea measur sured. ed. The oth other er end endss of the wires are usually terminated at a measuring instrument which forms a refere ref erence nce jun juncti ction. on. Whe When n the two jun juncti ctions ons are exp expose osed d to different temperatures, electrical current will flow through the circui cir cuitt (Se (Seebe ebeck ck Ef Effec fect). t). The mea measur sureme ement nt of mil milliv livolt oltage age resulting from the current is proportional to the temperature being sensed.

1.3 The values values stated stated in SI units are to be regarded regarded as the standard. The values given in parentheses are for information only. 2. Referenced Documents 2.1 ASTM Standards:2 D3951 Practice for Commercial Packaging D3951 E344 Terminology E344 Terminology Relating to Thermometry and Hydrometry

4.2.2 Types of Thermocouples— Thermocouples Thermocouples can be divided int vided into o fun functi ctiona onall cla classe ssess by mat materi erials als and the theref refore ore,, temperature tempe rature ranges. The three classes classes are base metal metal,, noble metal,, and refractory metal. Although metal Although many types are commonly used in industrial applications, the Instrument Society of America (ISA) has assigned letter designations to seven types. By convention, the practice of using a slash mark to separate the materials of each thermocouple wire is widely accepted. Likewise, the order in which the materials appear also denotes polarity polar ity of the wires wires;; posit positive/ne ive/negativ gativee when the meas measuring uring junction is at a higher temperature than the reference junction. The following are examples of typical thermocouples:

3. Terminology 3.1 Definitions— Definitions Definitions of terminology shall be in accordance with Terminology E344 Terminology E344.. 4. Class Classificat ification ion 4.1 General— Temperature Temperature measuring devices are generally classified as either temperature sensors or thermometers. Thermometers are not covered by this specification. Temperature sensors are classified by design and construction. Sensors may also be classified by the manner of response, basically mechanical or electrical, to a change in temperature. Mechanical response is characterized by some mechanical action as temperature changes. Electrical response is characterized by the

Class

1

This specification is under the jurisdiction of ASTM Committee F25 Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.10 F25.10 on on Electrical. Currentt editi Curren edition on appr approved oved Oct. 1, 2013 2013.. Publ Published ished October 2013. Orig Originall inally y approved in 2003. Last previous edition approved in 2009 as F2362 - 03 (2009). DOI: 10.1520/F23 10.1520/F2362-03R13. 62-03R13. 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

Base metal Base metal Base metal Base metal Base Ba se me meta tall

J T K E -----

Noble metal Refractory metal

-----

Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States

1

Type

Materials

Iron/constantan Copper/constantan Chromel/Alumel Chromel/constantan Allo Al loys ys of co copp pper er,, ni nick ckel el,, ir iron on,, chromium, manganese, aluminum, and other metals Various noble m et etals Tungs Tu ngsten ten-rh -rhen enium ium,, tan tantal talum, um, molybdenum, and their alloys

Temperature (max) 1000°C (1832°F) 1000°C (1832°F) 1000°C (1832°F) 1000°C (1832°F) 1000°C (1832°F)

2000°C (3632°F) 2600°C (4712°F)


F2362 − 03 (2013) 4.3 Res Resis ista tanc ncee Tem empe pera ratur turee Me Meas asur uring ing De Devi vice ces— s— Resist Res istanc ancee the thermo rmomet meters ers mea measur suree cha change ngess in tem temper peratu ature re based on changes in resistance of the sensor element exposed to the temperature. Two common types are resistance temperature detectors which have metal sensor elements and thermistors which have semiconductor sensor elements. 4.3.1 Resistance Temperature Detectors (RTDs)— An RTD consis con sists ts of sen sensor sor which uses a met metal al wire or fibe fiberr whi which ch responds to changes in temperature by changing its resistance. The sensor is connected to a readout via a bridge circuit or other oth er mea means ns of tra transl nslati ating ng the res resist istanc ancee to a tem temper peratu ature re value. 4.3.1.1 Type designs gns inclu include de avera averaging ging Typess of RTD RTDs— s— RTD desi RTDs, RTD s, annular RTDs, and combination RTD-thermocouples. Averag veraging ing RTDs are chara characteri cterized zed by a long resistance resistance element. Annular RTDs have sensors that are designed to provide a tight fit within the inner walls of thermowells. Combination RTD-th TD-thermoc ermocouple oupless have both an RTD and a therm thermocoup ocouple le housed in the same sheath. 4.3.2 Thermistors— Thermistors Thermistors are made of solid semiconductor materials, usually complex metal oxides, that have a high coefficient of resistance. Thermistors are available with positive and negative temperature coefficients of resistance and are usually designated PTC and NTC thermistors, respectively. The temperature range for typical thermistors is 100 to 300°C (212 to 572°F). 4.3.2.1 Types Thermistors are class classed ed by Types of Therm Thermistor istors— s— Thermistors the con configu figurat ration ion of the sem semico icondu nducto ctorr mat materi erial. al. Com Common mon types are the bead, disc, washer, and rod thermistors. Leads are attached to semiconductor materials, except where metal plated faces are used for contact to complete the circuit.

measuring elements comprise a temperature instrument. The temperature tempe rature monitoring monitoring equip equipment ment may cons consist ist of the following units and may be built integrally together and housed in the same enclosure: 7.1.1 Signal Conditioner— The The signal conditioner shall convert the sensing element output to a continuous linear analog signal directly proportional to temperature. 7.1.2 Power Supply— The The power supply shall provide excitation energy to the signal conditioner and sensor. 7.1.3 Test test st de devi vice ce sh shal alll be fu furn rnis ishe hed d to Test Devi Device— ce— A te provide a calibrated test signal used for calibrating the equipment. 7.2 Size and Weight Considerations— A dimensional outline of the temperature monitoring equipment showing overall and princi pri nciple ple dim dimens ension ionss in suf sufffici icient ent det detail ail to est establ ablish ish spa space ce requiremen requi rements ts in all direc directions tions necessary necessary for insta installati llation on and servicing will greatly assist proper selection. In many applications weight is a critical limitation. 7.3 General Features— Requiremen Requirements ts for gene general ral featu features res shall be specified. General features consist of the following: 7.3.1 Outpu Output, t, 7.3.2 Equip Equipment ment range, range, 7.3.3 Adjus Adjustment tments, s, 7.3.4 Fails Failsafe afe output, output, 7.3.5 Isola Isolation, tion, 7.3.6 Enclo Enclosure, sure, 7.3.7 Power supply supply requirements, requirements, and 7.3.8 Cabl Cablee entra entrance nce and conne connection ction.. 8. Performance Requiremen Requirements ts 8.1 Service T he pu purc rcha hase serr ma may y ha have ve a mi mini nimu mum m Service Life— The specified service life requirement. Critical service life requirements shall be specified in the acquisition requirements.

5. Ordering Information 5.1 The purchaser purchaser should provide the manufacture manufacturerr with all of the per pertin tinent ent app applic licati ation on dat dataa out outlin lined ed in the acq acquis uisiti ition on requirements.

8.2 Performance Certain performan performance ce Performance Conside Considerations— rations— Certain character charac terist istics ics may be dee deemed med cri critic tical al to the int intend ended ed or desired function of temperature monitoring equipment. Performance tolerances are usually expressed in percent of equipmentt spa men span. n. The fol follow lowing ing per perfor forman mance ce cha charac racter terist istics ics and environmental exposures should be tailored to each purchaser’s intended application: 8.2.1 Accuracy Accuracy,, 8.2.2 Repeatability Repeatability,, 8.2.3 Thres Threshold hold and deadband, deadband, 8.2.4 Rippl Ripple, e, 8.2.5 Warm-u arm-up p time, 8.2.6 Input resistance resistance,, 8.2.7 Suppl Supply y voltage or frequ frequency ency,, or both, 8.2.8 Temperature error, 8.2.9 Resp Response onse time, 8.2.10 Temp Temperature, erature, 8.2.11 Insulation resistance, resistance, 8.2.12 8.2.1 2 Vibrati ibration, on, and 8.2.13 8.2.1 3 Shock Shock..

5.2 Acquisition Requiremen A cquisition on docum documents ents Requirements— ts— Acquisiti should specify the following: 5.2.1 Titl Title, e, number and date of this spec specificat ification, ion, 5.2.2 Class Classificat ification ion requir required, ed, 5.2.3 Quant Quantity ity of units required, 5.2.4 Type of enclo enclosure sure mounting, mounting, 5.2.5 Power requirements requirements,, 5.2.6 Equipm Equipment ent temperature temperature range ranges, s, 5.2.7 Size or weight limitations, limitations, 5.2.8 Dispo Dispositio sition n of qualifi qualificatio cation n test samples, samples, 5.2.9 Produc Productt marki marking ng requirements, requirements, and 5.2.10 Speci Special al prese preservati rvation, on, packaging, packaging, pack packing ing and marking requirements. 6. Mater Materials ials and Manu Manufactu facture re 6.1 Temperature Sensors— The The materials for all wetted parts shall be selected for long term compatibility with the process medium.

9. Wo Workmanship rkmanship,, Finish, and Appearance 7. Physical Properties Properties

9.1 Finish and Appearance— Any Any special surface finish and appearance requirements shall be specified in the acquisition requirements.

7.1 Description— The The equ equipm ipment ent spe specifi cified ed her herein ein in con conjunction with the thermocouples or resistance temperature 2


F2362 − 03 (2013) 10. Numb Number er of Tests and Retests

usually less intensive usually intensive than qualification, qualification, often verify verifying ing that samples of a production lot meet a few critical performance requirements.

10.1 Test The number of test specimens to be Test Specimen— The subjected to qualification testing shall depend on the sensor design des ign.. If eac each h ran range ge is cov covere ered d by a sep separa arate te and distinct distinct design, a test specimen for each range may require testing. In instances where a singular design series may cover multiple ranges and types, only three test specimens may need to be tested provided the electrical and mechanical similarities are approved by the purchaser. In no case, however, should less than three units, one unit each representing representing low , mediu medium, m, and high ranges, be tested, regardless of design similarity.

13. Certi Certificat fication ion 13.1 When specified specified in the purchase purchase order or contr contract, act, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and the requirements have been met. When specified in the purchase order or contract, a report of the test results resul ts shall be furnis furnished. hed. 14. Pro Product duct Marking Marking

11. Test Data

14.1 Purch Purchaser aser specified specified product marking marking shall be liste listed d in the acquisition requirements.

11.1 Test A ll te test st da data ta sh shal alll re rema main in on fil filee at th thee Test Data— All manufa man ufactu cturer rer’s ’s fac facili ility ty for rev review iew by the pur purcha chaser ser upo upon n request. It is recommended that test data be retained in the manufactur manuf acturer’s er’s files for at least three years, or a period of time acceptable to the purchaser and manufacturer.

15. Pack Packagin aging g and Package Package Mark Marking ing 15.1 Packaging of Product for Delivery— Product should be packaged for shipment in accordance with Practice D3951 D3951..

12. Insp Inspectio ection n

15.2 Any special preservation, preservation, packaging, or package marking requirements for shipment or storage shall be identified in the acquisition requirements.

12.1 Classification of Inspections— The The inspe inspection ction requi requirerements specified herein are classified as follows: 12.1.1 Quali Qualificati fication on testing, and 12.1.2 Quali Quality ty confo conformanc rmancee testi testing. ng.

16. Quality Assurance Assurance Provisions Provisions 16.1 Warranty: 16.1.1 Respons U nless othe otherwis rwisee Responsibili ibility ty for Warra arranty— nty— Unless specified, the manufacturer is responsible for the following: 16.1.1.1 16.1. 1.1 All materials materials used to produ produce ce a unit, and 16.1.1.2 16.1. 1.2 Manu Manufactu facturer rer will warra warrant nt his produ product ct to be free from defect of workmanship to produce the unit.

12.2 Qualification Testing— Qualification Qualification test requirements shall be specified where applicable. Qualification test methods should be identified for each design and performance characterist ter istic ic spe specifi cified. ed. Test rep report ort doc docume umenta ntatio tion n req requir uireme ements nts should also be specified. 12.3 Quality Confo Quality confo conformanc rmancee Conformanc rmancee Testin esting— g— Quality testing is accomplished when qualification testing was satisfied by a previous acquisition or product has demonstrated reliability in sim simila ilarr app applic licati ations ons.. Qua Qualit lity y con confor forman mance ce tes testin ting g is

17. Keyw Keywords ords 17.1 res 17.1 resist istanc ancee tem temper peratu ature re det detect ector or (R (RTD); TD); the thermis rmistor; tor; thermocouple

SUPPLEMENTARY REQUIREMENTS

TEMPERATURE MONITORING EQUIPMENT (NAVAL SHIPBOARD USE) The following supplementary requirements established for U.S. Naval shipboard application shall apply when specified in the contract or purchase order. When there is conflict between the standard (ASTM F2362) and this supplement, the requirements of this supplement shall take precedence for equipment equip ment acqui acquired red by this suppl supplement ement.. This docum document ent supe supercede rcedess MIL-T MIL-T-1537 -15377, 7, Temper emperature ature Monitor Equipment, Naval Shipboard, for new ship construction. S1. Scop Scopee

mal tem temper peratu ature re con condit dition ions, s, the sys system tem sha shall ll ene energi rgize ze an audible and visual alarm when the temperature at a particular loca lo cati tion on is be belo low w or ab abov ovee a pr pres eset et li limi mit. t. Mo Moni nito tori ring ng of temperature tempe raturess shal shalll be acco accomplis mplished hed by meas measuring uring the elect electroromotive force (emf) output of thermocouples or by measuring the signal output due to changes in resistance of temperature sensing sens ing eleme elements. nts. Temper emperature ature monit monitoring oring equip equipment ment shall actuate external audible alarms specified herein.

S1.1 This supplement covers temperature monitoring equipment which continuously monitors and selectively indicates, at a central location, a number of temperatures at remote equipment locations on board naval ships. S1.2 Monitorin Monitoring ing equ equipme ipment, nt, in Monitoring g Equipment— Monitor conjunction with the temperature sensor assemblies and interconnecting conne cting cabling, comprise a tempe temperatur raturee measu measuring ring and alarm system. In order to warn operating personnel of abnor3


F2362 − 03 (2013) S1.3 Selective Temperature Selective Temperature Readout Readout Equipment— Selective temperature readout equipment, in conjunction with temperature sensor assemblies and interconnecting cabling, comprise a temperature tempe rature measuring measuring syste system. m. In order to enabl enablee opera operating ting person per sonnel nel to mea measur suree a num number ber of tem temper peratu atures res at rem remote ote points, the system shall enable the operator to manually select the desired point to be measured, convert the selected temperature sensor output to a signal proportional to temperature, and display this signal on a meter calibrated in temperature °C (°F). Readout of temperatures shall be accomplished by measuring the output of thermocouples or by measuring the signal output due to changes in resistance of temperature sensing elements. S1.4 The U.S. Gover Government nment preferred preferred system of meas measureurement is the metric SI system. However, since this item was originally designed using inch-pound units of measurement, in the event of conflict between the metric and inch-pound units, the inch-pound units shall take precedence.

S2.1 Commercial Documents: ANSI C96.1 Tempe Temperature rature Measurement Thermocouples3 S2.2 Government Documents: 4 S2.2.1 Military Standards: MIL-STD-167-1 MIL-STD -167-1 Mechanic Mechanical al Vibrati ibrations ons of Shipb Shipboard oard Equipment Equip ment (T (Type ype I—Env I—Environme ironmental ntal and Type II—Int II—Internal ernally ly Excited) MIL-STD-1399 MIL-ST D-1399 Interf Interface ace Stand Standard ard for Shipb Shipboard oard Syste Systems ms Electric Section 300 Power, Alternating Current (Metric) S2.2.2 Military Specifications: MIL-S-9 MIL -S-901 01 Sho Shock ck Test ests, s, H.I H.I.. (Hi (Highgh-Imp Impact act); ); Shi Shipbo pboard ard Machinery, Equipment and Systems, Requirements for MIL-PRFMILPRF-192 19207/1 07/1 Fus Fuseho eholde lders, rs, Extr Extract actor or Pos Postt Type ype,, Blown Fuse Indicating, Type FHL10U MIL-PRFMILPRF-192 19207/2 07/2 Fus Fuseho eholde lders, rs, Extr Extract actor or Pos Postt Type ype,, Blown Fuse Indicating, Type FHL11U

IC/A—Continuous, simultaneous monitoring of remote temperature perat ure sensors for alarm and also manual selective selective tempe temperarature readout. IC/I—Manual selective temperature readout for measuring temperatures at several remote locations. IC/S—Continuous, sequential scanning of remote temperature sensors for indication and alarm. S4.3 Alarm— The The alarm technique shall be designated by a single number as follows: 1—Alarm on temperature above the set level or (exclusive or) below the set level as operator selected. 2—No alarm provision—temperature readout only. S4.4 Temperatur The temp temperat erature ure emperaturee Sensing Technique— The sensing technique shall be designated by 3 letter symbols as follows: RTE—Resistance temperature element, platinum. TCE—Thermocouple temperature element, type K. S4.4.1 Readout Ranges— Readout Readout ranges shall be provided as specified as follows: (1) For RTE type sensors, the following ranges and meter scales shall be provided: (a) 5 to 127°C (-40 to 260°F) (b) 18 to 205°C (0 to 400°F) (c) 18 to 427°C (0 to 800°F) (d) 18 to 538°C (0 to 1000°F) (2) For type TCE sensors, the following ranges and meter scales shall be provided: (a) 5 to 127°C (-40 to 260°F) (b) 18 to 205°C (0 to 400°F) (c) 18 to 427°C (0 to 800°F) (d) 205 to 816°C (400 to 1500°F) (e) 260 to 1093°C (500 to 2000°F) S4.5 Numb The number of channels, corNumber er of Channels— Channels— The respon res pondin ding g to the num number ber of rem remote ote sen sensor sorss tha thatt mon monito itored red shall be designated by its numerical value.

S3. Terminology

S5. Ordering Information

S3.1 Definitions: S3.1.1 temperatur the nece necessary ssary temperaturee monitoring equipment— the equipment required to continuously or selectively sense and indicate indic ate variou variouss tempe temperature raturess includ including ing audib audible le and visua visuall alarms when specified.

S5.1 The purchaser purchaser shall provide the manufacturer manufacturer with all of the per pertin tinent ent app applic licati ation on dat dataa sho shown wn in acc accord ordanc ancee wit with h S5.2. If special application operating conditions exist that are not shown in the acquisition requirements, they shall also be described. S5.2 Acquisition Acquisition docum documents ents Acquisition Requir Requiremen ements— ts— Acquisition should specify the following: (1) Title, number and date of this specification, (2) Classification required, (3) Quantity of items required, (4) Number of temperature sensors to be monitored, channels, if other than 93.3°C (200°F), (5) Setting of alarm channels, (6) Height and weight of equipment assembly, Number of rem remote ote res resist istanc ancee tem temper peratu ature re sen sensor sorss or (7) Number remote rem ote the thermo rmocou couple ple tem temper peratu ature re sen sensor sorss mon monito itored red by equipment, (8) Equipment alarm and readout temperature range, (9) Accuracy or other performance requirements, (10) Disposition of qualification test samples, and (11) Unique preservation, packaging and marking requirements.

S2. Referenced Documents

S4. Classification S4.1 Classification— Monitoring Monitoring and selec selective tive tempe temperatur raturee readout equipment classification shall be of following format: Example: ASTM F2362S1-IC/A-1-RTE-40 Specification

Type

Alarm

F2362S1

IC/A (se see e S4 S4.2 .2))

1 (se see e S4.3 S4.3))

Sensing Technique RTE (se see e S4 S4.4 .4))

Number of Channels 40 (se see e S4 S4.5 .5))

S4.2 Type— The The equ equipm ipment ent shall be des design ignate ated d by the 3 letter symbols as follows:

3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036. 4 Availab Av ailable le from Stand Standardiz ardization ation Documents Documents Order Desk, DODSS DODSSP P, Bldg Bldg.. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.

4


F2362 − 03 (2013) S6. Materials and Manufacture Manufacture

be accessible from the front of the enclosure assembly. Three 2.44 2.4 4 m (8 ft) long cab cable le ass assemb emblie liess sha shall ll be pro provid vided ed and stowed securely inside each equipment enclosure. With these cable assemblies, it shall be possible to remove any one alarm module and the power supply, readout, alarm, and calibration modules to operate the equipment in a normal manner on a work wor k ben bench ch awa away y fro from m the ins instal talled led con consol sole. e. The These se cab cable le assemblies shall only be required to obtain access for special testing, trouble shooting, and repair. S7.1.6 Manua Manuall Selec Selective tive Tempe emperatur raturee Reado Readout ut Equipm Equipment ent Enclosure assembly shall contain the temperature in(IC/I)— Enclosure dicating meter, selector switch for selecting the desired temperature sensor to be read, all required, associated functional circuits and parts, and terminals for interconnection to external power and temperature sensors. S7.1.7 Continuous Scanning Monitoring (IC/S)— Enclosure Enclosure assembly for IC/S shall contain a readout, a micro processor, input multiplexers, A/D converters, and alarm circuits required to provide the number of channels specified, up to a maximum of 60. Operating controls and the readout shall be accessible from the front panel. A provi provision sion shall be included included whereby the function of the front panel controls can be disabled to prevent tampering by unauthorized personnel. S7.1.8 Temperature Monitor Equipment (IC/A)— One One identification plate shall be provided for each enclosure assembly. Indivi Ind ividua duall ide identi ntifica ficatio tion n pla plates tes sha shall ll be pro provid vided ed on eac each h module (alarm and indicator unit) showing the location of the associate asso ciated d tempe temperatur raturee sens sensing ing eleme element, nt, next to each alarm light, and identifying the function of controls and indicators located on the front of each module. As an alternate, identification plates showing location of temperature sensor elements may be provided on the overall equipment frame adjacent to each module location. Plates shall also provide for indicating the proper scale to use on the readout for each channel if a dial type meter is used. Adjustment, calibration, setting, and standardizatio dardi zation n contr controls ols locat located ed withi within n the enclo enclosure sure asse assembly mbly,, shall sha ll als also o be ide identi ntified fied by mea means ns of ide identi ntifica ficatio tion n pla plates tes.. Temperature sensor connection terminals shall be marked to correspond with the position identification for monitor point. S7.1.9 Sele Selective ctive Tempe emperatur raturee Reado Readout ut Equip Equipment ment (IC/I) (IC/I)— — The position of all selector switches shall be marked to identify the temperature sensor selected to be measured. Adjustment, calibration, and sensor connection terminals located within the enclosure assembly shall be identified and marked. S7.1.10 Contin The Continuous uous Sca Scannin nning g Moni Monitor toring ing (IC/ (IC/S)— S)— The equipment display shall identify the location of the temperature element when an alarm condition occurs. S7.2 System Requirements: S7.2.1 Temperature Monitor Equipment (IC/A)— IC/A IC/A temperature monitor equipment shall provide for continuous paralleled monitoring of up to 60 temperature sensors. Equipment shall sha ll be mod modula ular, r, wit with h ind indivi ividua duall mod module uless hav having ing plu plug-i g-in n features as specified in S7.1.2. There shall be at least 3 types of modules: (1) Monitor and alarm, (2) Readout, and (3) Power supply module.

S6.1 Unles Unlesss other otherwise wise specified, specified, equipment shall be fabricated from corrosion resistant materials compatible with system piping materials and process medium. S7. Physical Properties Properties S7.1 Enclosure Assembly: S7.1.1 Temperature Monitor Equipment— Equipment Equipment enclosure su re as asse semb mbly ly sh shal alll be of sh shee eett me meta tal, l, sp spla lash sh-p -proo roof f construction, and shall be suitable for either panel or bulkhead mounting. Splash-proof construction shall be such that water or soli so lid d pa part rtic icle less di dire rect cted ed at th thee en encl clos osed ed eq equi uipm pmen entt or it itss mounting surface shall have no harmful effect on equipment operation. S7.1.2 Continuous Enclosure Continuous Paral Parallel lel Monit Monitoring oring (IC/A) (IC/A)— — Enclosure assembly for IC/A monitor equipment shall contain one temperatu per ature re rea readou doutt mod module ule and the num number ber of ala alarm rm mod module uless required to provide the number of alarm channels specified, up to a maximum of 60. Modules shall be readily removable from the enclosure assembly by means of integral plug-in features operable from the front of the enclosure. Access to the interior or bac back k of the enclosur enclosuree ass assemb embly ly sha shall ll not be req requir uired ed to accomplish removal of any module. S7.1.3 Tempe The temp temperatu erature re Temperatur raturee Reado Readout ut Modul Module— e— The module shall be a temperature readout device and associated circuits. Necessary controls shall be located on the front panel of the module. S7.1.4 Alarm Module (IC/A and IC/I)— Indicator Indicator lights and contro con trols ls sha shall ll be loc locate ated d on the front panel of eac each h ala alarm rm module mod ule to per perfor form m the fol follow lowing ing fun functi ctions ons.. Mul Multiti-pos positi ition on switches may be utilized to combine control functions specified. (1) Power on light (white lens). Alarm light for each temperature temperature monitoring channel (2) Alarm (red lens). External alarm cut-o cut-out ut (sile (silence) nce) switch for each tem(3) External perature monitoring channel. (4) Alarm set potentiometer. (5) External alarm cut-out (silence) switch for temperature monitoring channels (one per equipment). (6) Alarm circuit reset switch: one per module (if required). (7) Test switch to verify continuity of alarm circuit, alarm light, and temperature sensor (one per module). (indicate) light on each temperature temperature monit monitoring oring (8) Read (indicate) chan ch anne nell to li ligh ghtt wh when en it ha hass be been en se sele lect cted ed at th thee re read adou outt module. S7.1.5 Access (IC/A)— Electrical Electrical connection between alarm and rea readou doutt mod module uless and bet betwee ween n mod module uless and the oth other er circuits within the enclosure assembly shall be by means of quick-disconnect connectors. Required auxiliary circuits, such as the pow power er sup supply ply,, sha shall ll be loc locate ated d wit within hin the enc enclos losure ure assembly in such a location as to be readily accessible from the front fro nt of the en enclo closu sure re ass assem embly bly.. Re Requi quired red con contro trols ls and indicators, associated with the power supply, shall be on the front panel. Fold down or slide drawer chassis chassis const constructi ruction on may be used. Terminals and terminal boards shall be provided for interconnection to ships power, temperature sensors, and external audible alarm. These terminals shall also be located to 5


F2362 − 03 (2013) Each monitor and alarm module shall monitor 4 temperature sensors. Equipment shall be capable of operating, as specified here he rein in,, wi with th ea each ch of th thee 60 te temp mper erat atur uree al alar arm m se sett po poin ints ts adjusted for a different temperature setting. Any alarm may be acti ac tiva vate ted d re rega gard rdle less ss of th thee st stat atee of an any y ot othe herr al alar arm. m. Fo Forr purposes purpo ses of stand standardiza ardization, tion, the factor factory y setti setting ng shal shalll be approximately 93.3°C (200°F) for points, unless otherwise specified in the acqu acquisitio isition n requi requiremen rements. ts. S7.2.2 Visual Alarm— Each Each monitor point shall be uniquely associated with a specific remote temperature sensor and shall have its own individual indicating light. When the temperature at the point being monitored reaches a predetermined temperature setting (alarm point), the indicator light shall be energized and remain energized until manually reset. S7.2.3 Audible Alarm— One One relay or electronic switch having 5 A minimum rating DPDT operation shall be provided for supplying 115 V alternating current (ac) power for actuating an extern ext ernal al aud audibl iblee ala alarm rm sim simult ultane aneous ously ly wit with h act activa ivatin ting g the visual alarm. The alarm relay switch shall be wired to the panel terminal boards in the cable entrance stuffing box. The audible alar al arm m sh shal alll be ac acti tiva vate ted d wh when en an any y on onee or mo more re of th thee temperat temp eratures ures bein being g moni monitore tored d reac reaches hes the pred predeter etermine mined d (alarm) setting. Each channel shall provide a manual switch for cutting out the audible alarm for its own monitoring point. This cutcu t-ou outt sh shal alll no nott pr prev even entt an any y of th thee ot othe herr ch chan anne nels ls fr from om sounding the audible alarm should the temperature at any other monitored monit ored point reach the prede predetermin termined ed (alarm (alarm)) setti setting. ng. A single, singl e, maste masterr cut-ou cut-outt switc switch h with associated associated indic indicator ator light shall sha ll be pro provid vided, ed, which wil willl dis disabl ablee the sou soundi nding ng of the external audible alarm for the entire system. S7.2.4 Independent Action— The The monitoring and alarm action of individual points shall be independent of each other. Action of indicating an alarm condition at one or more monitor points shall not prevent the system (equipment) from indicating an alarm condition at other monitor points. S7.2.5 Temperature Readout— The The temperature readout device and channel selector switch shall be provided in a readout module. The selector switch shall be depressed to turn so that momentary momen tary contact is not made with intermediate intermediate channels. channels. The continuous, automatic monitor and alarm capability of the system shall not be affected by the selection of a temperature sensor sen sor for rea readin ding. g. Whe When n a cha channe nnell tem temper peratu ature re rea readin ding g is being taken, the alarm feature of all points including the one being bei ng mea measur sured ed sha shall ll be mai mainta ntaine ined. d. The ope operat ration ion of the read re adou outt mo modu dule le sh shal alll no nott de depe pend nd on ba bala lanc ncin ing g mo moto tors rs,, slidew sli dewire ires, s, pot potent entiom iomete eters, rs, or sim simila ilarr dev device ices. s. The use of potentiometers shall be limited to test, adjustment, and calibration purposes only. S7.2.6 Test switch tch shall be pro provid vided ed for Test Feature— A test swi each monitor and alarm module for testing alarm lights and continuity of each temperature sensor and alarm circuits of that module. When the switch is operated to the “test” position, the channel alarm light shall indicate an alarm condition. Failure of the channel alarm light on the module to light shall indicate an open circuit in the lamp, temperature sensor, or in the associated ate d ala alarm rm cir circui cuit. t. Thi Thiss tes testt ope operat ration ion sha shall ll not cha change nge the normal state of the alarm relays or external relays.

S7.2.7 Fail Saf The IC/ IC/A A tem temper peratu ature re mon monito itorr Safee Des Design ign— — The equipment shall have an inherent “fail safe” feature. An open circui cir cuitt in the ext extern ernal al tem temper peratu ature re sen sensor sor or its con connec nectin ting g cabling shall result in an alarm condition. S7.2.8 Calibration and Setting of Alarm Point— Design Design of the IC/A temperature monitor equipment shall be such as to facilitate calibration and adjustment of the individual alarm set points. Self calibration capability shall be an inherent design feature. Test jacks shall be provided to facilitate direct connection to external instrumentation for test, calibration, and trouble shooting. Calibration, alarm set point adjustment and access to the test jacks shall not require disassembly or changes to the electrical wiring connections. S7.2.9 Cold Junct Cold junction comJunction ion Compe Compensati nsation— on— Cold pensation pens ation for equip equipment ment for thermo thermocoupl couplee sens sensing ing shall be self-c sel f-cont ontain ained, ed, aut automa omatic tic,, and sha shall ll be ref refere erence nced d to 0°C (32°F). S7.2.10 Lead Length Compensation— Equipment Equipment for resistance temperature sensing shall provide an input terminal for 3 wire wi re se sens nsor or co confi nfigu gura rati tion on.. A me mean anss sh shal alll be pr prov ovid ided ed to compensate compe nsate for the resis resistance tance of interc interconne onnecting cting wiring between twe en sen sensor sor and mon monito itorr equ equipm ipment ent.. Thi Thiss com compen pensat sating ing provision provi sion and asso associate ciated d sens sensor or input terminal config configurati uration on shall be arranged that it can be easily by-passed (removable jumper, alternate terminals, or similar means) for use with 2 wire resistance temperature elements. Equipment for thermocouple cou ple sen sensin sing g sha shall ll pro provid videe for the thermo rmocou couple ple lea lead d len length gth compensation. Accuracy, calibration, and response time shall be indep independen endentt of therm thermocoup ocouple le exten extension sion lead lengt length. h. S7.2.11 Size and Weight Individuall modul modules es (alarm or eight— — Individua readout) shall not exceed 15.24 cm (6 in.) in height, 7.62 cm (3 in.) in width, and 30.48 cm (12 in.) in depth. Total weight per modu mo dule le sh shal alll no nott ex exce ceed ed 5. 5.44 44 kg (1 (12 2 lb lb). ). Th Thee eq equi uipm pmen entt assembly, containing the required number of alarm modules, the readout module, and power supply module shall not exceed 50.8 cm (20 in.) in width, and 35.6 cm (14 in.) in depth. The height and weight, determined by the number of temperatures the equipment is designed to monitor, shall be as specified in the acqui acquisitio sition n requir requirement ements. s. The equip equipment ment asse assembly mbly,, containing the required number of alarm modules to monitor 60 temper tem peratu atures res,, sha shall ll not exc exceed eed 129 129.6 .6 cm (51 in. in.)) in hei height ght.. Total weight shall not exceed 90.7 kg (200 lb). For a 40 point monito mon itorr sys system tem,, the equ equipm ipment ent ass assemb embly ly sha shall ll not exc exceed eed 91.44 cm (36 in.) in height, and weight shall not exceed 68 kg (150 lb). S7.2.12 Selective Temperature Readout Equipment (IC/I)— Equipment shall provide for the manual selection of any one of several remotely located temperature sensors and converting the signal output of the selected sensor to the signal required for display on a read-out device, calibrated in °C (°F). The oper op erat atio ion n of th thee re read adou outt eq equi uipm pmen entt sh shal alll no nott de depe pend nd on balancing motors, slide-wires, potentiometers, or similar device vi ces. s. Us Usee of po pote tent ntio iome mete ters rs sh shal alll be li limi mite ted d to te test st,, adjustment, and calibration purposes only. The equipment shall facilitate facil itate calibration calibration witho without ut disa disassemb ssembly ly or chang changes es to the electrical wiring connections. Test jacks shall be provided to permit direct connection to test and calibration instruments. instruments. An inherent “fail safe” feature shall be incorporated which will 6


F2362 − 03 (2013) S8. Performance Requirements Requirements

result in an off-scale (high or low) reading to signal a failure in the manual selector, associated readout circuits, or an open or short in the exte external rnal tempe temperature rature sensor. sensor. S7.2.12.1 Size and Weight Selective tempe temperature rature reado readout ut eight— — Selective equipm equ ipment ent assembly assembly sha shall ll not exceed exceed 30. 30.48 48 cm (12 in.) in width, 30.48 cm (12 in.) in height, and 35.6 cm (14 in.) in depth. The total weight shall not exceed 18.14 kg (40 lb). S7.2.13 Continuou Continuouss Scann Scanning ing Monito Monitoring, ring, Indic Indicating ating,, and IC/S tempe temperature rature monitor equip equip- Alarm Equipment (IC/S)— IC/S ment shall provide for continuous scanning via micro processor of up to 60 temperature sensors. Equipment shall be modular, with individual modules having plug-in features. The equipment shall scan at a rate which will allow all channels to be scanned in 5 s or less. Alarm set points and temperature input charac cha racter terist istics ics sha shall ll be abl ablee to be rere-pro progra gramme mmed d fro from m the front panel. The equipment shall be capable of annunciating alarms ala rms regardle regardless ss of num number ber (up to 60) and reg regard ardles lesss of previous alarm history. S7.2.14 Number of Readout Points (IC/A, IC/I and IC/S)— The num number ber of rem remote ote res resist istanc ancee tem temper peratu ature re sen sensor sorss or remotee therm remot thermocoup ocouple le tempe temperature rature sensors monitored by the equipment shall be specified in the acquisition requirements. S7.3 Parts Requirements— Electrical parts, mecha mechanical nical Requirements— Electrical parts, processes, and material shall be selected and applied to meet the requirements herein. S7.3.1 Batteries— Batteries shall not be used. S7.3.2 Electrical Electrical indica indicating ting Electrical Indic Indicating ating Meter Meters— s— Electrical meters met ers sha shall ll be hig high-i h-impa mpact ct sho shock ck res resist istant ant,, wat watert ertigh ight, t, or hermet her metica ically lly sea sealed led typ types, es, in acc accord ordanc ancee wit with h one of the following: (1) 11.43 cm (4- 1 ⁄ 2 in.) 250° nominal scale length. (2) Panel mounted, edgewise type. S7.3.3 Digital Readout— Digital Digital meters utilized in lieu of an electrical indicating meter (analog type readout) shall have a minimum of 4 digits. The meters shall be high-impact shock resistant, and watertight, or hermetically sealed. S7.3.4 Fuses— Fuses Fuses shall be selected so that the overload blowing characteristics and short circuit interrupting capacity matches the overload protection requirements of the equipment and wiring being protected and the short circuit capacity of the supply circuit. S7.3.5 Fuse Mounti Fuses sha shall ll be mou mounte nted d in pan panel el Mounting— ng— Fuses mounted, indicating type fuse-holders. Fuse-holders FHL10 in accordance with MIL-PRF-19207/1 or FHL11 in accordance with MIL-PR MIL-PRF-1920 F-19207/2 7/2 are prefe preferred rred types types.. S7.3.6 Termi erminall board boardss Terminal nal Boar Boards ds and Mounti Mounting— ng— Termina shall be stud type and shall be secured only by bolts (machine screws) and shall be capable of ready removal and replacement. They shall be accessible from the front of the enclosure with the front cover plate removed or access door open. S7.3.7 Switches— Switch Switches es sha shall ll be sel select ected ed so tha thatt rat rated ed currents and voltages (make, break, carry) are not exceeded in the intended application, as well as for their ability to withstand the shipboard environments. Rotary switches are preferred for powerr circu powe circuit it inter interruptio ruption. n. Reado Readout ut chann channel el selec selector tor switc switch h shall be a “push to turn” type so that momentary contact is not made with intermediate channels while turning the switch.

S8.1 Calibratio Temperature monitoring Calibration n and Accur Accuracy— acy— Temperature equipment, selective temperature readout equipment, and continuou tin uouss sca scanni nning ng tem temper peratu ature re mon monito itorin ring g equ equipm ipment ent sha shall ll comply with the calibration and accuracy requirements specified below below.. Equipm Equipment ent perfor performance mance requir requirement ementss speci specified fied herein are specified on the basis of simulating the signal output of the appropriate temperature sensors and applying this signal to the input terminals (temperature sensor terminal points) of the equipment. S8.1.1 Accuracy of Alarm Set Point— Temperature Temperature monitoring equipment (IC/A, IC/I, and IC/S) shall permit the setting of the alarm point at any value over the designated temperature span. The error band of the alarm level setting shall be one-half the error band of the temperature readout on any full scale range. S8.1.2 Accur T he re read adou outt er erro rorr of th thee Accuracy acy of Rea Readou dout— t— The equipment shall not exceed 6 2 % of the readout range for any readout range setting. The temperature indicated on the readout device shall be within 62 % of the temperature equivalent to the simulated temperature sensor output in ohms or millivolts, as applicable. S8.2 Ambient Temperature Error— The The change in temperature reading (temperature error) of the equipment due to any changing ambient temperature from 4.5 to 65°C (40 to 149°F) shall not exceed 0.18 (0.1) % of full scale per °C (°F) change in ambient temperature. S8.3 Response Time: S8.3.1 Alarm Circuits (IC/A and IC/I)— The The alarm shall be actuated within 0.1 s when a step signal change of 1.5 % of full scale is applied when the monitoring systems are reading 1.4 % of full scale below the alarm setting for any alarm setting from 5 to 100 % of full scale. S8.3.2 Alarm Circuits The alarm shall be actuated Circuits (IC/S)— The on the first scan cycle after the alarm condition appears at the input inp ut of the equ equipm ipment ent.. Ala Alarms rms sha shall ll be pro progra gramma mmable ble to actuate either above a set condition or below a set condition. S8.3.3 Temperature Readout— Equipment Equipment shall display the steady state temperature reading 6 2.0 % in less than 3 s when a step signal equivalent to 80 % (from 10 to 90 %) of full temperatur tempe raturee span is appli applied ed to the temperature temperature sensor input terminals termi nals of the tempe temperatur raturee monito monitoring ring equip equipment ment cons console. ole. S8.3.4 Compens Equipment shal shalll provid providee Compensation ation for RTE— Equipment for 3 wire temperature temperature sensor inputs. Means shall be provid provided ed to com compen pensat satee for the res resist istanc ancee of int interc erconn onnect ecting ing wir wiring ing betwee bet ween n tem temper peratu ature re sen sensor sor and the ind indica icator tor equ equipm ipment ent.. Compensating provision and associated sensor input terminal configuration shall be so arranged that it can be easily bypassed (removable jumper, alternate terminals, or similar means) for use with 2 wire uncompensated resistance temperature sensors. S8.3.5 Compensat Cold juncti junction on compe compensansaCompensation ion for TCE— Cold tion shall be self-contained, automatic, and shall be reference to 0°C (32°F). S8.4 Operation: S8.4.1 Temperature Monitor Equipment— When When the equipment is opera operated ted under nominal conditions conditions simul simulating ating shipboard service (see S11.3), equipment operation shall comply with the following: 7


F2362 − 03 (2013) (1) Individual visual alarm indicators light when associated testt swi tes switch tch is ope operat rated ed (ap (appli plicab cable le to IC/ IC/A A and IC/ IC/S S equ equipipment). (2) Test, reset, and audible alarm cut out switches operate as required. Indicat cator or rea reads ds req requir uired ed tem temper peratu ature re whe when n tes testt and (3) Indi select sele ct (or indica indicate te as applic applicable) able) switches switches are opera operated. ted. Readout accuracy shall be in accordance with S8.1.2. Alarm m ind indica icatio tion n act activa ivated ted wit with h tem temper peratu ature re sen sensor sor (4) Alar termin ter minals als ope open n or sho short rt cir circui cuited ted,, exc except ept ins instru trumen ments ts for thermocouple sensors need not detect a short. S8.4.2 Selective When Selective Temper emperatur aturee Reado Readout ut Equip Equipment— ment— When the equipment is operated under nominal conditions simulating shipboard service (see S11.3), equipment operation shall comply with the following: (1) Accuracy of readout (see S8.1.2). (2) Selector switch operates in accordance with S8.4.1 (3). (3) Indicator scale is driven to either extreme low or high with temperature sensor terminals open or short circuited. S8.4.3 Power Supply Requirements— Equipment Equipment shall operate normally from type I power as defined in MIL-STD-1399, Section 300. Nominal power input voltage and frequency shall be 115 V, 60 Hertz (Hz), single phase. Power line transients and spikes with magnitudes, duration, repetition rates, and decay characteris chara cteristics tics as spec specified ified in MIL-ST MIL-STD-139 D-1399, 9, Secti Section on 300 shall not cause equipment damage or affect equipment operation. The maximum difference in indicator reading and alarm settin set ting g lev level el at any vol voltag tagee and fre freque quency ncy con condit dition ion and nominal (115 V, 60 Hz) with the same input, shall not exceed 1 ⁄ 2 of 1 % of full scale on all ranges. S8.5 Warm-up Time— Transducer Transducer output shall attain a value within 61 % of the steady-state output with no overshoot in excess of 1 %. Output shall reach this band in 30 min or less and shall remain in this band (see S11.4). S8.6 Inclination— Maximum Maximum deviation of indication resulting from inclination shall not exceed 1.0 % (see S11.5). S8.7 Enclosure— Ther Theree sh shal alll be no ev evid iden ence ce of wa wate terr leakage into the equipment enclosure (see S11.6). S8.8 Insulation Resistance— The The insulation resistance shall be not less than 10 megohms between power input lines and ground (hull). S8.9 Shock— The The tempe temperature rature monitoring equipment equipment shall show sho w no evi eviden dence ce of mec mechan hanica icall or ele electr ctrica icall dam damage age or loosening of parts, when exposed to shock in accordance with MIL-S-901. S8.9.1 Temperature Monitor and Readout Equipment (IC/A, Operating controls shall not change statu statuss IC/I, and IC/S)— Operating during dur ing shock. shock. The There re sha shall ll be no tra transf nsfer er of swi switch tch or rel relay ay contacts or change in selector switch position during shock. After Aft er sho shock, ck, wit withou houtt any adj adjust ustmen ments, ts, the equ equipm ipment ent sha shall ll meet the following requirements: Alarm m se sett po poin intt ac accu cura racy cy as sp spec ecifi ified ed in S8 S8.1 .1.1 .1 (a (ass (1) Alar applicable). (2) Indicator accuracy in accordance with S8.1.2. (3) Operation shall be in accordance with S8.4. S8.10 Vibration— Temper emperature ature indic indicating ating and monit monitoring oring equipment shall operate in accordance with the requirements herein her ein whe when n exp expose osed d to typ typee I env enviro ironme nmenta ntall vib vibrat ration ion of

MIL-STD-167-1. Equipment range and accuracy requirements shall be demonstrated during and after completion of vibration. Equipment shall show no evidence of mechanical or electrical damage or loosening of parts. Operating controls and relays shall sha ll not change change sta status tus during vibratio vibration. n. The There re sha shall ll be no momentary or permanent transfer of switch or relay contacts or change in selector switch position during vibration. S8.11 Temperature— Equipment Equipment shall operate in accordance with S8.4 when exposed to ambie ambient nt tempe temperatur raturee condi conditions tions from 0 to 65°C (32 to 149°F). The equipment shall not be damaged dama ged in a non-o non-operat perating ing condition when exposed to ambient temperatures of -40 to 70°C (-40 to 158°F). S9. Wo Workmanship rkmanship,, Finish, and Appearance S9.1 Cleaning and Surface Finishes— Surfaces Surfaces of castings, forgings, molded parts, stampings, machined and welded parts shall be free of defec defects ts such as crack cracks, s, poros porosity ity,, under undercuts, cuts, voids and gaps as well as sand, dirt, fins, sharp edges, scale, flux,, and oth flux other er har harmfu mfull or ext extran raneou eouss mat materi erials als.. Ext Extern ernal al surfaces shall be smooth and edges shall be either rounded or beveled. There shall be no burn-through. There shall be no warpag war pagee or dim dimens ension ional al cha change nge due to hea heatt fro from m wel weldin ding g operation. There shall be no damage to adjacent parts resulting from welding. S10. Numb Number er of Tests and Retests S10.1 S10. 1 Th Thee nu numb mber er of te test stss an and d re rete test sts, s, if an any y, sh shal alll be specified in the acquisition requirements. S11. S1 1. Test Methods S11.1 Calibr M onitor or an and d rea reado dout ut Calibratio ation n and Accu Accurac racy— y— Monit equipment equip ment calib calibratio ration n and accu accuracy racy meas measureme urements nts shall be accomplished by simulating temperature sensor signal output over the desig designated nated temperature temperature span. Simula Simulated ted signa signall for equipm equ ipment ent usi using ng the res resist istanc ancee sen sensin sing g tec techni hnique que sha shall ll be resist res istanc ancee val values ues as spe specifi cified ed in Appendix Appendix B and shall be simulated by a resistance decade (or similar device) having an accuracy of 60.055 Ω. The simulated signal for equipment using the thermocouple sensing technique shall be millivolts (mV) as specified in ANSI C96.1 and shall be simulated by a stable direct current (dc) voltage source having an accuracy of 60.025 mV. S11.1.1 Accur Alarm set poi points nts Accuracy acy of Ala Alarm rm Set Poi Point— nt— Alarm shall be calibrated and adjusted in accordance with the instructions tio ns con contai tained ned in the tec techni hnical cal man manual ual fur furnis nished hed wit with h the equi eq uipm pmen ent. t. Th Thee ac accu cura racy cy of th thee al alar arm m se sett po poin intt sh shal alll be checked chec ked at 5 dif differen ferentt tempe temperature raturess appro approximate ximately ly equal equally ly spaced over the temperature span for each alarm channel. A signal simulating the temperature sensor output shall then be applied to the equipment input terminals. The accuracy of the alarm ala rm set point sha shall ll be che checke cked d wit with h bot both h inc increa reasin sing g and decreasing decre asing signals. signals. The signal requir required ed to actua actuate te the alarm shall be within the limits specified in S8.1.1. S11.1.2 Accuracy of Readout— The The accuracy of the readout portio por tion n of equ equipm ipment ent typ types es sha shall ll be det determ ermine ined d at app approx roxiimately equally spaced intervals over each readout temperature span. The reading, at each simulated temperature input, shall be as specified in S8.1.2. 8


F2362 − 03 (2013) S11.1.3 Lead Resist For equ equipme ipment nt Resistance ance Compen Compensation— sation— For which operates with RTE sensors, one of the measurements specified in S11.1.1 and S11.1.2 shall be repeated by inserting a resistance in series with each lead of the resistor simulating the RTE to simulate lead resistance. The resistance in each lead shall be any value between 20 and 30 σ , but the resistance for each lead shall be equal to each other within 0.1 Ω. S11.2 Response Time: Time: S11.2.1 Alarm Circuits— Compliance Compliance with S8.3.1 shall be demonstrated by testing at 10, 20, 50, 90, and 100 % of the full alarm setting range. S11.2.2 Temperature Readout— A step input signal, signal, equal to 80 % of the temperature temperature span (from 10 to 90 % of the span) for each temperature range setting shall be applied to the temperaturee sen tur sensor sor inp input ut ter termin minals als.. Ind Indica icator tor rea readin ding g sha shall ll be as specified in S8.3.3. S11.3 Oper Operatio ation n (Mo (Monito nitorr and Rea Readou doutt Equ Equipm ipment ent)— )— Equipment shall be energized with nominal voltage and frequency (115 V, 60 Hz) and allowed to stabilize for at least 30 min.. Inp min Input ut sig signal nals, s, sim simula ulatin ting g tem temper peratu ature re sen sensor sor out output putss equiva equ ivalen lentt to app approx roxima imatel tely y mid mid-ra -range nge of the tem temper peratu ature re span, spa n, sha shall ll be con connec nected ted to all equ equipm ipment ent inp input ut ter termin minals als.. Equipm Equ ipment ent controls controls sha shall ll the then n be act actuat uated ed in tur turn n to ver verify ify compliance with S8.4.1 and S8.4.2. Indicator readings shall be noted and recorded. The supply voltage and frequency shall then be adjusted to the lower limit of permissible variation (see S8.4). Equipment shall be stabilized at this input power for at least 15 min and indicator reading shall be noted and recorded. Supply voltage and frequency shall then be adjusted to the higher limit, stabilized for at least 15 min, and the indicator reading noted and recorded. Temperature sensor inputs during these the se tes tests ts sha shall ll rem remain ain con consta stant. nt. The cha change nge in ind indica icator tor reading, due to variations in input power shall be within the limits specified in S8.4. S11.4 Warm-up Time— Test Test shall be conducted to determine the elapsed time between the application or line power to the equipment and the point at which the indication reaches the conditions specified in S8.5. S11. S1 1.4. 4.1 1 The tr tran ansd sduc ucer er sh shal alll be pl plac aced ed in an am ambi bien entt temperature of 25 6 2°C (77 6 3.6°F) for not less than 2 h de-energized. Recording equipment and other auxiliary equipment me nt sh shal alll be en ener ergi gize zed d to as assu sure re co comp mple lete te wa warm rm-u -up. p. A simula sim ulated ted sig signal nal equ equal al to 80 6 5 % of ind indica icatio tion n sha shall ll be applied and maintained constant during this test. Performance shall conform to S8.5. S11.5 Inclination— The equipment shall be inclined for a period of at least 1 min in each of the following positions: (1) 45° forward (2) 45° backward (3) 45° to the left (4) 45° to the right In each position a reference measurement (see S11.1) shall be made. Performance shall conform to S8.6. S11.6 Enclosure— The T he en encl clos osur uree sh shal alll be su subj bjec ecte ted d to a solid stream stream of water from a 2.54 cm (1 in.) nozzle nozzle at 246 L (65 gal) per minute at a distance from the equipment of approximately 3.05 m (10 ft). The water stream shall be directed at all

surfaces of the enclosed equipment and its mounting surface for a minimum of 5 min. Performance shall conform to S8.7. S11.7 Insulation Resistance— Insulation Insulation resistance shall be dete de term rmin ined ed wi with th a te test st po pote tent ntia iall of 50 Vd Vdcc ap appl plie ied d fo forr a minimum of 60 s. S11.8 Shock— Equipm Equipment ent and sen sensor sor ass assemb emblie liess sha shall ll be tested teste d in acco accordanc rdancee with the high-i high-impac mpactt shoc shock k test specified specified in MIL-S-901 for grade A, class I, type C equipment. S11.8.1 Monitor and Readout Equipment— The The equipment shall be energized during the test with nominal voltage and freque fre quency ncy (115 V, V, 60 Hz) and se senso nsorr inp input ut sig signal nalss sha shall ll be 80 % of span. During the test, all operating controls shall be observed for change in status. After the shock test, equipment shall be subjected to the following examinations and tests: (1) Alarm set point accuracy (see S11.1.1), (2) Readout accuracy (see S11.1.2), (3) Operation at nominal voltage and frequency (see S11.3), and Examinat nation ion for evi eviden dence ce of mec mechan hanica icall dam damage age or (4) Exami loosening loose ning of parts parts.. S11.9 Vibration— Equipment Equipment and sensor assemblies shall be tested in accordance with type I vibration of MIL-STD-167-1. Energizat Ener gization, ion, input signa signals, ls, obser observatio vations ns durin during g test and examinations after vibration shall be as specified in S11.8 for the shock test. IC/A system shall have the alarm point set within 4 % of fu full ll sc scal alee of th thee in inco comi ming ng te temp mper erat atur uree le leve vel. l. Th Thee temperature level shall be at 90 % of full scale. If an alarm occurs occ urs dur during ing vib vibrat ration ion,, any vib vibrat ration ion tes testt is a fai failur luree and correc cor rectiv tivee act action ion is req requir uired. ed. Fre Freque quency ncy var variat iation ion tes tests ts of MIL-STD-167-1 are required with the same settings. It shall be demonstrated that vibration from 1 to 50 Hz in accordance with MIL-STD-167-1 shall not cause alarm. S11.10 Temperature: S11.10.1 Operating— The The equipment shall be subjected to the following temperature cycles: Period (h) 6 6 6

Temperature (±3°C) 0°C (32°F) 65°C (149°F) 25°C (77°F)

Environment Chamber Chamber Stable room or chamber

Cycle periods shall be measured from the time the temperature tu re is st stab abil iliz ized ed.. Al Alll te test stss wi with thin in a 66-h h pe peri riod od sh shal alll be continuous. Performance during and after the tests shall conform to S8.11. S11.10.2 Non-operating— The The equipmen equipmentt sha shall ll be hel held d at each of the two temperature extremes for a period of 24 h. Performance after the test shall conform to S8.11. S12. Inspection S12.1 Classification of Inspections— The The inspection requirements specified herein are classified as follows: (a) Qualification testing, and (b) Quality conformance testing. S12.2 Qualification— Qualification Qualification tests shall be conducted at a laboratory satisfactory to the purchaser. Qualification tests shall consist of the general examination and the tests specified in Table S1 and shall be conducted on equipment produced with techniques and procedures normally used in production. 9


F2362 − 03 (2013) may be the production of any convenient time period. Each equipm equ ipment ent sha shall ll be sub subjec jected ted to gen genera erall exa examin minati ation on and accuracy test. S12.3.2 Sampling— A sampl samplee of equip equipment ment shall be selected from each lot in accordance with Table S2 and subjected to the examinations and tests specified in Table S3. If the number of nonconforming equipment in any sample exceeds the acceptance number for that sample, the lot represented by the sample shall be rejected. S12.4 Test Conditions— Except Except for those tests where the following follow ing factors are the varia variables, bles, tests shall be condu conducted cted with the equipment operating under the following conditions: ambient temperat temperature ure shall be 25 6 3°C (77 6 (1) The ambient 5.4°F), 5.4 °F), and the relative relative hum humidi idity ty sha shall ll be bet betwee ween n 25 and 50 %. (2) The supply voltage shall be 115 V nominal. (3) The supply frequency shall be 60 Hz nominal. S12.5 General Examination— The The tempe temperature rature monit monitoring oring equipment shall be given a thorough examination to determine that it conforms to this specification and the approved drawings with wit h res respec pectt to mat materi erial, al, fini finish, sh, con constr struct uction ion,, as assem sembly bly,, dimensions, workmanship, marking, identification, and information mat ion pla plates tes.. Thi Thiss exa examin minati ation on sha shall ll be lim limite ited d to tho those se examinations that may be performed without disassembling the unitt in suc uni such h a man manner ner that its performan performance, ce, durabili durability ty and appearance would be affected. This examination shall include a mechanical check of all operating controls and adjustments, as applicable.

TABLE S1 Qualification Testing (Monitor and Selective Temperature Readout Equipment) Examination and Test

Requirement

Test

--S8.1 S8.3 S8.4

S12.5 S11.1 S11.2 S11.3

S8.5 S8.6 S8.7 S8.8 S8.9 S8.10 S8.11

S11.4 S11.5 S11.6 S11.7 S11.8 S11.9 S11.10

General examination Calibration and accuracy Response time Operation (Monitor and Readout Equipment) Warm-up time Inclination Enclosure Insulation resistance Shock Vibration Temperature

S12.2.1 Qualifi Qualificat cation ion Sam Sample— ple—Moni Monitor tor and Rea Readout dout One sample of each type and temperature sensing Equipment— One technique with the maximum number of channels for which qualification is sought shall be submitted for examination and test. S12.2.1.1 Exten Q ualificati ation on of an Extentt of Qua Qualifi lificat cation ion— — Qualific equipment type will also be extended to equipment of the same design des ign,, typ type, e, and sen sensin sing g tec techni hnique que,, wit with h les lesser ser num number ber of channels. S12.2.2 Test Equipment submi submitted tted for qualifi qualificacaTest Routine— Equipment tion testing shall be subjected to the tests shown in Table S1 in the order listed. Failure of an equipment to comply with any of the requirements listed shall cause refusal to grant qualification. S12.2.3 Disp Samples Disposit osition ion of Qual Qualifica ification tion Samp Samples les— — Samples subjected to qualification testing shall be considered consumed and non-deliverable as part of the contract. Final disposition of qualifi qua lificat cation ion sam sample pless sha shall ll be spe specifi cified ed in the acq acquis uisiti ition on requirements. S12.3 Quality The sam sample ple equ equipipQuality Confo Conformanc rmancee Testin esting— g— The ment or sensor assemblies selected shall be subjected to the examinations and tests listed in Table S3. Examinations and tests shall be performed in the order listed.

S13. Certification S13.1 When specified specified in the purchase order order or contr contract, act, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and the requirements have been met. When specified in the purchase order or contract, a report of the test result shall be furnished. It is recommended that all test data remain on file for three years at the manufacturer’s facility for review by purchaser upon request.

TABLE S2 Sampling for Quality Conformance Testing Lot Quantity 7 and under 8 t o 15 16 to 40 41 to 110 11 to 300 301 to 500 501 and over

Sample Quantity

Nonconformance Quantity

All 7 10 15 25 35 50

--1 1 1 2 2 3

S14. Product Marking S14.1 Produ Product ct marki marking ng requi requiremen rements ts shall be specified in the acquisition requirements.

TABLE S3 Quality Conformance Testing Examination and Test General examination Calibration and accuracy Insulation resistance Operation Response time

Requirement

Test

--S8.1 S8.8 S8.4 S8.3

S12.5 S11.1 S11.7 S11.3 S11.2

S15. Pack Packagin aging g and Package Package Mark Marking ing S15.1 Pac S15.1 Packag kaging ing and pac packag kagee mar markin king g sha shall ll be in acc accorordance with Section 15 15.. S16. Quality Assurance Assurance Provisions Provisions S16.1 Warranty— Specia Speciall war warran ranty ty req requir uireme ements nts sha shall ll be specified in the acquisition requirements. Otherwise, the standard commercial warranty applies.

S12.3.1 Lot— Equipm Equipment ent of the same typ typee pre presen sented ted for quality conformance inspection at one time shall be considered a “lot.” The lot may include the entire contract quantity, or it

10


F2362 − 03 (2013)

SIGNAL CONDITIONER AND POWER SUPPLY (ELECTRICAL) (NAVAL SHIPBOARD USE) The following supplementary requirements established for U.S. Naval shipboard application shall apply when specified in the contract or purchase order. When there is conflict between the standard (ASTM F2362) and this supplement’s appendix, the requirements of this supplement’s appendix shall take precedence for equipment acquired by this supplement’s appendix. This document supercedes MIL-T-24387, Tempera emperature ture Measurement Equipment Signal Condi Conditioner tioner and Power Supply (Elect (Electrical) rical) for new ship construction. construction.

S17. Scop Scopee

S20. Classification

S17.1 This specification specification covers the requirements requirements for signa signall conditioners and electrical power supplies used in conjunction with thermocouples and resistance temperature element assemblies bli es for naval ships. ships. It doe doess not include include the des design ign of the sensing elements and wells or the requirements for the readout or display. S17.2 This specificatio specification n defines equipment equipment intended to provide control input and monito monitoring ring of tempe temperature raturess for shipboard engineering plants. S17.3 The U.S. Government Government preferred system system of meas measureurement is the metric SI system. However, since this item was originally designed using inch-pound units of measurement, in the event of conflict between the metric and inch-pound units, the inch-pound units shall take precedence.

Temper emperature ature monitoring equipment equipment shall consist of a serie seriess of designations which shall be assigned and listed in the format below. Example: ASTM F2362S17-TRE-4H-YES Specifi Spec ifica cati tion on F2362S17

Typ ype e TRE S20.1

Inpu In putt Ra Rang nge e 4H S20.2

Alar Al arm m an and d Repe Repeat ater er Ci Circ rcui uits ts YES

S20.1 Type— Temperature Temperature measurement equipment shall be designated by the three letter symbols as follows: TRE—Temperature Resistance Equipment, platinum TTE—Temperature Thermocouple Equipment, type K S20.2 Input Range— The The temperature range in degrees Fahrenheit enh eit (°F (°F)) sha shall ll be des design ignate ated d by its num numeri erical cal value (se (seee S20.2.1.1 and S20.2.2.1). S20.2.1 Temperature Resistance (Type TRE) Input: S20.2.1.1 Ranges— Equipment Equipment temperature temperature range shall be as specified in the acquisition requirements. Ranges shall be in accordance with the following:

S18. Referenced Documents S18.1 Commercial Documents: ANSI/ASQ ANSI /ASQC C Q900 Q9001-19 1-1994 94 Quality Syst Systems ems—Mod —Model el for Qualit Qua lity y Ass Assura urance nce in Des Design ign,, Dev Develo elopme pment, nt, Pro Produc ductio tion, n, Installation, Inspection, Testing and Servicing 5 S18.2 Government Documents: 6 S18.2.1 Military Standard: MIL-STD-167-1 MIL-STD -167-1 Mechanic Mechanical al Vibrati ibrations ons of Shipb Shipboard oard Equipment Equip ment (T (Type ype I—Env I—Environme ironmental ntal and Type II—Int II—Internal ernally ly Excited) S18.2.2 Military Specifications: MIL-S-9 MIL -S-901 01 Sho Shock ck Test ests, s, H.I H.I.. (Hi (Highgh-Imp Impact act); ); Shi Shipbo pboard ard Machinery, Equipment and Systems, Requirements for MIL-JMIL -J-241 24142 42 Jun Juncti ction on Box Boxes es for Ele Electr ctrica icall Fit Fittin tings gs and Fixtures, General Specification for MIL-J-24142 MIL-J24142/3 /3 Junct Junction ion Box, Submersible, Submersible, Size 6 by 9

Range -40 to 127°C (-40° to 260°F) -18 to 205°C (0° to 400°F) -18 to 538°C (0° to 1000°F)

Designation 26 4H 1K

S20.2.1.2 Excitation T he max maximu imum m curr current ent Excitation Curr Current— ent— The through the resistance temperature element shall be 6 ma, dc. S20.2.1.3 Lead Wire Resistance Compensation— The equipment input for resistance sensing technique shall be of threewire configuration. A means shall be provided to compensate for the factors which introduce error such as self heating and the resistance of interconnecting wiring between the sensor and signal conditioner. S20.2.2 Temperature Thermocouple (Type TCE) Input: S20.2.2.1 Ranges— Equipment Equipment temperature temperature range shall be as specified in the acquisition requirements. Ranges shall be in accordance with the following:

S19. Terminology S19.1 Definitions: S19.1.1 thermocouple, shall be as defined by S34. S19.1.2 resistance , shall be as defined by Section S34. S19.1.3 deadband , the range through which the measurand can be verified without a change in output. S19.1.4 static error band , the maximum deviation from a straight line drawn through the coordinates of the lower span limit at specified output, and the upper span limit at specified output expressed in percent of span.

Range -40 to 93°C (-40° to 200°F) -18 to 205°C (0° to 400°F) -18 to 538°C (0° to 1000°F) 205 to 649°C (400° to 1200°F) 260 to 816°C (500° to 1500°F)

Designation 2H 4H 1K 12H 15H

S20.2.2.2 Cold Junct C old juncti junction on Junction ion Compe Compensati nsation— on— Cold compensation compensati on for therm thermocoup ocouple le sens sensing ing techn technique ique shal shalll be automatic and shall be referenced to 0°C (32°F). S21. Ordering Information Information S21.1 The purchaser shall provide provide the manufacturer with all of the per pertin tinent ent app applic licati ation on dat dataa sho shown wn in acc accord ordanc ancee wit with h S21.2. If special application operating conditions exist that are not shown in the acquisition requirements, they shall also be described.

5 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036. 6 Availab Av ailable le from Stand Standardiz ardization ation Documents Documents Order Desk, DODSS DODSSP P, Bldg Bldg.. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.

11


F2362 − 03 (2013) S21.2 Acquisition Acquisition documen documents ts Acquisition Requir Requirements ements— — Acquisition should specify the following: (1) Title, number and date of this specification, (2) Classification required, (3) Quantity of units required, (4) Type of enclosure mounting, (5) Power requirements, (6) Equipment temperature ranges, (7) Disposition of qualification test samples, (8) Product marking requirements, and (9) Unique preservation, packaging, and marking requirements.

operation and maintenance of the equipment and the elimination for the selective matching of parts. S23.6 Fail Safe Output— If If the input of the signal conditioner tio ner is ope open n cir circui cuited ted,, the out output put sha shall ll dri drive ve ups upscal calee or downscale, the choice of which shall be made by means of a link. S23.7 Isolation— Input Input and output circuits shall be isolated from each other and from ground. S23.8 Enclosure— Tempera Temperature ture measu measuremen rementt equip equipment ment shall be mounted in a junction box. The junction box may be in acc accord ordanc ancee wit with h MIL MIL-J-J-241 24142 42 and MIL MIL-J-J-241 24142/ 42/3. 3. At a minimum, the size, mounting, and cable interface shall be per MIL-J-2414 MIL-J -24142 2 and MIL-J MIL-J-2414 -24142/3. 2/3. All adjus adjustment tmentss and test points shall be accessible when the cover is removed. Temperature measurement equipment shall be designed for bulkhead or bracket mounting. S23.9 Weight— The The weight of the complete equipment shall be kept to a minimum commensurate with good engineering design. S23.10 Power Supply Requirements— The The equipment shall be designed to operate with line variations as specified in S27.9 and S27.12. Nominal steady state power supply requirements shall be 115 6 10 % V at 60 6 5 % hertz (Hz), single phase, unless otherwise specified in the acquisition requirements. S23.11 Cable Cable entra entrance nce Cable Entra Entrance nce and Conne Connection— ction— Cable shall sha ll be by mea means ns of stu stufffing tubes located located on the bottom bottom surface of the enclosure. S23.12 Operation— The The ope operat ration ion of the equ equipm ipment ent sha shall ll not depend on balancing motor, slide wires, or similar devices. The system shall be completely static. The use of potentiometers are for test and adjustment purposes only. S23.13 Resistors— Composition Composition type fixed or variable resistors shall not be used. S23.14 Batteries— Batteries Batteries shall not be used. S23.15 Modular Assemblies— Modular Modular units or assemblies shall be fastened in such a manner to allow for quick and easy removal for maintenance accessibility or replacement. S23.16 Terminal Boards— The The interface with shipboard wiring shall be by means of terminal boards. These terminals shall be accessible with the coverplate removed.

S22. Materials and Manufacture Manufacture S22.1 Except where specifications specifications are referenced, materials materials shall be in accordance with commercial specifications having material mater ial compo composition sitionss suita suitable ble for servi service ce in the shipb shipboard oard marine environment. S23. Physical Properties Properties S23.1 Description— The The equipment specified herein in con junction with the thermocouples or resistance temperature elemen ele ments ts spe specifi cified ed in App Append endix ix B com compri prise se a tem temper peratu ature re instrument instr ument.. The tempe temperatur raturee measu measuremen rementt equip equipment ment gener gener-ally consists of the following units: The signal conditioner shall con(1) Signal Conditione Conditioner— r— The vert the sensing element output to a continuous linear analog signal directly proportional to temperature. The power supply shall provide excita(2) Power Supply Supply— — The tion energy to the signal conditioner and sensor. (3) Test Device— Device— A test device shall be furnished to provide a calibrated test signal used for calibrating the equipment. The various assemblies of temperature measurement equipment shall be built integrally together and housed in the same enclosure. S23.2 Output— The The electrical signal output of the equipment shall sha ll be dc, dir direct ectly ly pro propor portio tional nal to tem temper peratu ature re inp input. ut. The output shall be 4 to 20 ma, dc into an external resistance of 550 6 10 % σ. S23.3 Calibration shall be pro provid vided ed to Calibration Means Means— — A means shall monitor equipment output corresponding to temperature input to permit in place calibration by one man. Each temperature inst in stru rume ment nt sh shal alll co cont ntai ain n a te test st sw swit itch ch an and d a te temp mper erat atur uree detector simulator capable of supplying a test signal into the instrument instr ument circuitry. circuitry. This test devic devicee shall have a calib calibrated rated dial and shall replace the detector when the instrument is in the test mode. The signal from this simulator shall be of sufficient accu ac cura racy cy to de dete term rmin inee st stat atic ic er erro rorr ba band nd (s (see ee S2 S24. 4.2) 2) an and d repeat rep eatabi abilit lity y (se (seee S24 S24.3) .3).. Test jac jacks ks sha shall ll be pro provid vided ed to monitor the equipment output and detector output. Placing the instrument in the test mode shall allow remote monitoring of the detector. Calibration shall be effected without the necessity of electrical disconnection. S23.4 Equipment Range— Equipment Equipment range shall be determined by means of an interchangeable assembly or internal adjustments. S23.5 Adjustments— Tamper-proof Tamper-proof adjustments for zero and span shall be provided for calibration purposes. The number of adjustments shall be kept to a minimum, consistent with the

S24. Performance Requirements Requirements Performance tolerances are expressed in percent of equipment span unles unlesss state stated d otherw otherwise. ise. S24.1 Service E quipm pmen entt sh shal alll be de desi sign gned ed fo forr a Service Life— Equi mini mi nimu mum m se serv rvic icee li life fe of 40 00 000 0 h in a sh ship ipbo boar ard d ma marin rinee environment. S24.2 Static Error Band— The The static error band sha shall ll not exceed plus or minus 1 % (see S27.2). S24.3 Repeatability— Repeatability Repeatability of the output shall not exceed 0.3 % (see S27.2). S24.4 Threshold and Deadband— The The maximum least detectable increment plus deadband shall not exceed 0.2 % (see S27.4). S24.5 Ripple— Equipm Equipment ent out output put rip ripple ple sha shall ll not exc exceed eed 0.15 % of full scale output (see S27.5). 12


F2362 − 03 (2013) S27. Test Methods

S24.6 Warm-up Time— The The equipment output shall attain a value within plus or minus 1 % of the steady state output with no overshoot in excess of 1 %. Output shall reach this band in 30 min or less and shall remain in this band (see S27.6). S24.7 Inclination— Maximum Maximum deviation of equipment output res result ulting ing fro from m inc inclin linati ation on sha shall ll not exc exceed eed 1.0 % (se (seee S27.7). S24.8 Input Resistance— The The equipment output shall remain within the static error band (see S24.2 and S27.8). S24.9 Suppl Supplyy Volt oltage age and Fr Frequ equenc encyy (St (Stea eady dy Sta State) te)— — Maxim Ma ximum um dif differ ferenc encee bet betwee ween n out output putss at any vol voltag tagee and frequency condition and the normal (115 V, 60 Hz) at the same input shall not exceed 1.0 % (see S27.9). S24.10 Response Time— The The 95 % response time shall be 0.5 s or less (see S27.10). S24.11 Supply Voltage and Frequency (Transients): S24.11.1 Voltage— When When the equipment is exposed to the limits of specified voltage transient, the equipment output shall remain within 61 % of the steady state output (see S27.11). S24.11.2 Frequency— When When the equipment is exposed to the limits of specified frequency transient, the equipment output shalll remai shal remain n withi within n 61 % of th thee st stea eady dy st stat atee ou outp tput ut (s (see ee S27.11). S24.12 Temperature— When When the equ equipm ipment ent is exp expose osed d to the ambient temperature extremes, performance shall be within the static error band specified in S24.2 (see S27.12). S24.13 Insulation Resistance— The The insulation resistance of the equ equipm ipment ent bet betwee ween n cir circui cuits ts and bet betwee ween n cir circui cuits ts and ground shall be not less than 10 megohms (see S27.13). S24.14 Vibration— When When the equipment is exposed to vibration in accordance with MIL-STD-167-1, monitored output test shall show no variation from steady state output in excess of 2.0 %. There shall be no visible evidence of damage to the equipment as a result of the vibration (see S27.14). S24.15 Shock— After After exposure to shock in accordance with MIL-S-901 but prior to any adjustment, the equipment output shal sh alll sh show ow no de devi viat atio ion n gr grea eate terr th than an 3 %. A po post st sh shoc ock k calibr cal ibrati ation, on, usi using ng adj adjust ustmen ments ts pro provid vided, ed, sha shall ll con confor form m to performance requirements of S24.2. There shall be no visual evidence of damage to the equipment as a result of the shock (see S27.15).

S27.1 General The unpow unpow-General Exami Examination nation and Oper Operation ation— — The ered er ed te temp mper erat atur uree mo moni nito tori ring ng eq equi uipm pmen entt sh shal alll be gi give ven n a thorou tho rough gh exa examin minati ation on to det determ ermine ine con confor forman mance ce to the requirements of this specification with respect to material, color, finish, finis h, wor workman kmanshi ship, p, safe safety ty,, con constr structi uction, on, ass assemb embly ly,, dimens dim ension ions, s, wei weight ght,, and mar markin king g of ide identi ntifica ficatio tion n pla plates tes.. Examination shall be limited to the examinations that may be performed without disassembling the unit in such a manner that its performance, durability, or appearance would be affected. S27.2 Static P riorr to th thee Static Err Error or Band and Repea Repeatabili tability— ty— Prio start of this test, the test sample and associated test equipment shall be energized for a period of 2 h. The test sample shall first be cycled over its full temperature range by slowly increasing and an d de decr crea easi sing ng th thee in inpu putt fo forr si six x co cont ntin inuo uous us cy cycl cles es.. Th Thee calibration measurements shall be made at a minimum of 5 equally spaced intervals over the entire range (both upscale and downscale). Precaution shall be taken to avoid overshoot. This calibration procedure shall be applied three successive times to determine deter mine repeatability repeatability.. Static error band of all calib calibration rationss shall meet the requirements of S24.2. Repeatability shall meet the requirements of S24.3. S27.3 Reference Measurement— A one trial calibration with at least five equally spaced intervals over the entire input range both upscale and downscale shall be conducted when specified in the individual test. S27.4 Det Determ erminat ination ion of Thr Thresh eshold old and Dea Deadba dband— nd— Threshold and deadband shall be determined with 80 6 5 % of the temperature span applied to the test sample. The temperature interval beyond this point required to produce a detectable change in output and the temperature interval in the opposite direct dir ection ion to ret return urn the out output put to the original original val value ue sha shall ll be determined in each direction. Threshold is the first temperature interv int erval. al. The sec second ond tem temper peratu ature re int interv erval al is the sum of the thresh thr eshold old and dea deadba dband. nd. Per Perfor forman mance ce sha shall ll con confor form m to the requirements of S24.4. S27.5 Ripple-equi R ipple le sh shal alll be de dete terrRipple-equipment pment Output— Ripp mined at an input of 80 6 5 % of th thee te temp mper erat atur uree sp span an.. Performance shall conform to the requirements of S24.5. S27.6 Warm-up Time— This This test shall be conducted to determine the elapsed time between the application of line power to the test sample and the point at which the equipment output reaches the conditions specified in S24.6. The test sample shall be placed in an ambient temperature of 25 6 2°C (77 6 3.6°F) for not less than 2 h de-energized. Recording equipment and other auxiliary equipment shall be energized to assure complete warm-up. An input of 80 6 5 % of the span is to be applied to the test sample and maintained constant during this test. Performance shall conform to S24.6. S27.7 Inclination— The The equipment shall be inclined for a period of at least 1 min in each of the following positions: (1) 45 degrees forward (2) 45 degrees backward (3) 45 degrees to the left (4) 45 degrees to the right In each position a reference measurement (see S27.3) shall be made. Performance shall conform to S24.7.

S25. Workmanship orkmanship,, Finish, and Appearance S25.1 Cleaning and Surface Finishes— Surfaces Surfaces of castings, forgings, molded parts, stampings, machined and welded parts shalll be free of defec shal defects ts such as crack cracks, s, poros porosity ity,, under undercuts, cuts, voids and gaps as well as sand, dirt, fins, sharp edges, scale, flux,, and oth flux other er har harmfu mfull or ext extran raneou eouss mat materi erials als.. Ext Extern ernal al surfaces shall be smooth and edges shall be either rounded or beveled. There shall be no burn-through. There shall be no warpag war pagee or dim dimens ension ional al cha change nge due to hea heatt from welding welding operation. There shall be no damage to adjacent parts resulting from welding. S26. Numb Number er of Tests and Retests S26.1 S26. 1 Th Thee nu numb mber er of te test stss an and d re rete test sts, s, if an any y, sh shal alll be specified in the acquisition requirements. 13


F2362 − 03 (2013) S27.8 Inpu F or the therm rmoc ocoup ouple le se sens nsing ing Inputt Res Resista istance nce— — For technique, a noninductive resistance of 150 6 1 % Ω shall be placed pla ced in eac each h lea lead d to the input terminal terminalss to tot total al a cir circui cuitt resistance of approximately 300 Ω. A reference measurement (see S27.3) shall be made. Performance shall conform to S24.8. S27.9 Supply Voltag The oltagee and Fr Frequen equency cy (Stead (Steadyy State State)— )— The equipment equip ment shall be opera operated ted at the various combinations combinations of normal nor mal,, max maximu imum m and min minimu imum m ste steady ady sta state te vol voltag tages es and frequencies outlined in S24.9. The equipment shall be operated at le leas astt 15 mi min n in ea each ch co comb mbin inat atio ion n du duri ring ng wh whic ich h tim timee a reference measurement (see S27.3) shall be taken. Performance shall conform to S24.9. S27.10 Response Time— A step input equal to 10 to 90 % of full scale equipment temperature span shall be applied to the test sample. Performance shall conform to S24.10. S27.11 Suppl The Supplyy Voltag oltagee and Fre Frequenc quencyy (T (Trans ransient)— ient)— The tests specified in S27.11.1 through S27.11.2 shall be conducted with a temperature input signal equal to 80 6 5 % of the input span. Performance shall conform to S24.11. S27.11.1 Transient Voltage— With With the equip equipment ment opera operating ting on the upper limit of steady voltage, a transient voltage of plus 20 % of nominal voltage recovering recovering to the stead steady y state band in 2 s shall be superimposed. With the equipment operating on the lower limit of steady state voltage, transient voltage of minus 20 % of nominal voltage recovering recovering to the stead steady y state band in 2 s shall be superimposed. S27.11.2 Transient Frequency— With With the equipment operating at the nominal frequency, a transient frequency of 2 Hz shall be applied of which not more than 1 ⁄ 2 cycle per second is outside the steady state tolerance band recovering to the steady state tolerance band within 2 s. This shall be repeated with a minus 2 Hz transient frequency. S27.12 Temperature— The The equ equipm ipment ent shall be cap capabl ablee of normal operation (without alignment or adjustment) other than the accessible controls employed for operation of the equipment) throughout the following temperature cycle; tolerances in operating characteristics shall be as specified in the individual equipment specification. (1) Hold room temperature at 0 6 2°C (32 6 3.6°F) for at least 24 h. (2) Increase room temperature in steps of 10°C (18°F) each, at 30 min per step, until 65 6 2°C (149 6 3.6°F) is reached, and hold at that temperature for at least 4 h. Reducee room temperature temperature in steps of 10°C (18°F) each, (3) Reduc at 30 min per step, until 25 6 2°C (77 6 3.6°F) is reached, and hold at that temperature for at least 4 h. At each temperature plateau 0°C (32°F), 65°C(149°F) and 25°C (77°F), a reference measureme meas urement nt (see S27.3) shall be made. Performance Performance shall conform to S24.12.

S27.13 Insulation Resistance— The The insulation resistance of thee eq th equi uipm pmen entt sh shal alll be de dete term rmin ined ed by ap appl plyi ying ng 50 V dc between electrical input and output circuits and between these circuits and ground (see S24.13). S27.14 Vibration— The The equipment shall be tested in accordance dan ce wit with h typ typee I (en (envir vironm onment ental al vib vibrat ration ion)) of MIL MIL-ST -STDD167-1 except that the upper limit of the frequency range shall be 100 Hz. The amplitudes of vibration shall be in accordance with Table S4. If no resonances are observed, the 2 h endurance test shall be conducted at 100 Hz. During the vibration test, an input equal to 80 6 5 % of the temperature span shall be applied to the test sample. The output during the test shall be monitored. monit ored. Performance Performance shall conform to S24.1 S24.14. 4. TABLE S4 Amplitudes of Vibration Frequency Range, (Hz) 5 to 20 21 to 50 51 to 100

Table Amplitude, µm (in.) 762 ± 150 (0.030 ± 0.006) 500 ± 100 (0.020 ± 0.004) 250 ± 50 (0.010 ± 0.002)

S27.15 Shock— The The shock test shall be conducted in accordance with MIL-S-901, grade A, class I, type C. During the test an input equal to 80 6 5 % of the temperature span shall be applied to the equipment. The test sample output during the test shal sh alll be mo moni nito tore red. d. Be Befo fore re an and d af afte terr th this is te test st,, re refe fere renc ncee measur mea sureme ements nts sha shall ll be mad madee for com compar pariso ison n (se (seee S27 S27.3) .3).. Performance shall conform to S24.15. S28. Inspection The testing set forth in this specification shall become a part of the man manufa ufactu cturer rer’s ’s ove overal ralll ins inspec pectio tion n sys system tem or qua qualit lity y program. The manufacturer’s quality system shall comply with thee re th requi quire reme ments nts of AN ANSI/ SI/AS ASQC QC 90 9001 01-19 -1994 94,, Qu Qual ality ity Syst Sy stem ems— s—Mo Mode dell fo forr Qu Qual alit ity y As Assu sura ranc ncee in De Desi sign gn,, Development, Production, Installation, and Servicing. Certification and registration is highly desired but not required. S28.1 Classification of Inspections— The The inspection requirements specified herein are classified as follows: (1) Qualification testing, and (2) Quality conformance testing. S28.2 Test Conditions— Except Except where the follow following ing factors aree th ar thee va vari riab able les, s, th thee te test stss sh shal alll be co cond nduc ucte ted d wi with th th thee equipment operating under the following conditions: Ambient nt temperature temperature shall shall be 24 6 5°C (75 6 9°F), (1) Ambie (2) Relative humidity shall be 60 6 15 %, (3) Supply voltage shall be nominal, and (4) Supply frequency shall be nominal. S28.3 Qualification Testing— The The qualification testing shall consist of the tests specified in Table S5. The tests shall be performed in the sequence shown.

14


F2362 − 03 (2013) S29. Certification

TABLE S5 Qualification Testing Examination and Test General examination Output Static error band and repeatability Reference measurement Threshold and deadband Ripple Warm-up time Inclination Input resistance Supply line voltage and frequency,, steady-state frequency Response time Supply line voltage and frequency,, transients frequency Temperature Insulation resistance Vibration Shock

Requirement

Test

--S24.4 S24.2

S27.1 S27.2 S27.2

S24.3 S24.4 S24.5 S24.6 S24.7 S24.8 S24.9

S27.3 S27.4 S27.5 S27.6 S27.7 S27.8 S27.9

S24.10 S24.11

S27.10 S27.11

S24.12 S24.13 S24.14 S24.15

S27.12 S27.13 S27.14 S27.15

S29.1 When specified specified in the purchase order order or contr contract, act, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and the requirements have been met. When specified in the purchase order or contract, a report of the test result shall be furnished. It is recommended that all test data remain on file for three years at the manufacturer’s facility for review by purchaser upon request. S30. Product Marking S30.1 Produ Product ct marki marking ng requi requiremen rements ts shall be specified in the acquisition requirements but at a minimum, shall include: (1) Manufacturer’s name, (2) Classification, and

S28.3.1 Sample Size— The The number of samples subjected to qualificati quali fication on tests as specified in Table S5 shall depend on the equipment design. If each range is covered by a separate and distinct design, a sample for each range will require testing. Only one sample of a basically similar design series which may cover many ranges need be tested if mechanical and electrical similarity is deemed sufficient by the purchaser. S28.4 Quality Conformance Testing— All All temperature measurement equipment offered for delivery shall be subjected to thee ex th exam amin inat atio ion n an and d te test stss li list sted ed in Tab able le S6 an and d sh shal alll be conduc con ducted ted in the ord order er lis listed ted.. Fai Failur luree of any tem temper peratu ature re equipment to meet the requirements of this specification shall be cause for rejection.

(3) Signal conditioner.

S31. Pack Packagin aging g and Package Package Mark Marking ing S31.1 Pac S31.1 Packag kaging ing and pac packag kagee mar markin king g sha shall ll be in acc accorordance with Section 15 15..

TABLE S6 Quality Conformance Testing Examination and Test General examination Output Static error band and repeatability Ripple Input resistance (thermocouple sensing technique only) Insulation resistance

Requirement

Test

--S24.4 S24.2

S27.1 S27.2 S27.2

S24.5 S24.8

S27.5 S27.8

S24.13

S27.13

THERMOCOUPLE THERMOCO UPLE AND RESIST RESISTANCE ANCE TEMPERA TEMPERATURE TURE DETECTO DETECTOR R ASSEMBLIE ASSEMBLIES S (NA (NAV VAL SHIPBO SHIPBOARD ARD USE) The following appendix to supplementary requirements established for U.S. Naval shipboard application shall apply when specified in the contract or purchase order. When there is conflict between the standard (ASTM F2362) and this supplement’s appendix, the requirements of this supplement’s appendix shall take precedence for equipment acquired by this supplement’s appendix. This document supercedes MIL-T24388, Thermocouple Thermocouple and Resis Resistance tance Temperature Temperature Detector Assemblies, Assemblies, General Specification Specification for (Naval Shipboard), Shipboard), for new ship construction.

S32. Scop Scopee

S32.2 Resi Resistanc stancee therm thermomete ometers rs and therm thermocoup ocouple le senso sensors rs are intended to convert temperature measured to an electrical output for input to a temperature signal conditioner.

S32.1 This spec specificat ification ion cove covers rs enviro environment nmentally ally harde hardened ned resistance thermometers and thermocouple sensors that transform the surrounding thermal energy in a manner that can be electrically measured and converted to a temperature using a signall condi signa conditione tioner/tem r/temperatu perature re monit monitor or.. Types of config configuraurations covered in this specification are those which place the resistance resis tance thermometer thermometer or thermo thermocoupl couplee senso sensorr direc directly tly into the medium (bare bulb), into a thermowell, or embedded into a beari bearing. ng.

S32.3 The U.S. Government Government preferred system system of meas measureurement is the metric SI system. However, since this item was originally designed using inch-pound units of measurement, in the event of confli conflict ct betw between een the metri metricc and inch-pound inch-pound units units,, the inch-pound units shall take precedence.

15


F2362 − 03 (2013) S33. Referenced Documents

MIL-W-81381 Wire, Electric, Polyimide-Insulated, Copper MIL-W-81381 Copper or Copper Alloy MIL-W-81381 MIL-W -81381/12 /12 Wi Wire, re, Elect Electric, ric, Fluoro Fluorocarbo carbon/Poly n/Polyimide imide Insulated, Medium Weight, Nickel Coated Copper Conductor, 600 V, 200 ’C, Nominal 8.4 or 15.4 MIL WALL

S33.1 Commercial Documents: S33.1.1 ASTM Standards:7 A249 A24 9 Spe Specifi cificat cation ion for Weld elded ed Aus Austen teniti iticc Ste Steel el Boi Boiler ler,, Superheater, Heat Exchanger, and Condenser Tubes A269 A26 9 Spe Specifi cificat cation ion for Sea Seamle mless ss and Weld elded ed Aus Austen teniti iticc Stainless Steel Tubing for General Service (DOD adopted) A276 Speci Specificati fication on for Stain Stainless less and HeatHeat-Resi Resisting sting Steel Bars and Shapes (DOD adopted) A312 A31 2 Spe Specifi cificat cation ion for Sea Seamle mless ss and Weld elded ed Aus Austen teniti iticc Stainless Steel Pipe (DOD adopted) B23 Speci Specificati fication on for White Metal Bear Bearing ing Alloys Known Commercially as “Babbitt Metal” B117 B11 7 Metho Method d of Salt Spray (Fog) Testing Testing (DOD adopted) adopted) B152 B15 2 Specific Specificati ation on for Cop Copper per She Sheet, et, Str Strip, ip, Pla Plate, te, and Rolled Bar (DOD adopted) B164 Speci Specificati fication on for Nicke Nickel-Copp l-Copper er Alloy Rod, Bar, and Wire (DOD adopted) B167 Specification for Nickel-Chromium-Iron Alloys (UNS N06600 and N06690) Seamless Pipe and Tube (DOD adopted) B355 B35 5 Spe Specifi cificat cation ion for Nic Nickel kel-Co -Coate ated d Sof Softt or Ann Anneal ealed ed Copper Wire (DOD adopted) B637 Speci Specificati fication on for Preci Precipitati pitation-Ha on-Hardeni rdening ng Nicke Nickell Alloy Bars, Forgings, and Forging Stock for High Temperature Service D1457 D145 7 Spe Specific cificatio ation n for Poly Polytetr tetraflu afluoroe oroethyl thylene ene PTFE Molding Mold ing and Extrus Extrusion ion Mate Materials rials (DOD adopt adopted) ed) E344 Terminology Relating to Thermometry and Hydrometry S33.2 Government Documents: 8 S33.2.1 Military Standards: MIL-STD-167-1 MIL-STD -167-1 Mechanic Mechanical al Vibrati ibrations ons of Shipb Shipboard oard Equipment Equip ment (T (Type ype I—Env I—Environme ironmental ntal and Type II—Int II—Internal ernally ly Excited) MS 3102 Conne Connector ctor,, Rece Receptacl ptacle, e, Elect Electric, ric, Box Moun Mounting, ting, Solder Contacts, AN MS 310 3106 6 Co Conne nnecto ctor, r, Plu Plug, g, Ele Electr ctric, ic, Str Straig aight, ht, Sol Solder der Contacts, AN Type S33.2.2 Military Specifications: MIL-S-901 MIL-S -901 Shock Shock Tests ests,, HI (High (High-Impa -Impact); ct); Shipb Shipboard oard Machinery, Equipment and Systems, Requirements for MIL-W-5846 MIL-W -5846 Wi Wire, re, Electr Electric, ic, Chrom Chromel, el, and Alumel, Thermocouple MIL-A-8625 MIL-A8625 Anodi Anodicc Coati Coating, ng, for Aluminum and Aluminum Alloys MIL-W-16878 Wire, Electrical, Insulated, General Specification for MIL-W-16878 MIL-W -16878/4 /4 Wi Wire, re, Electr Electrical, ical, Polyte Polytetrafluo trafluoroethy roethylene lene (PTFE) Insulated, 200 ’C, 600 V, Extruded Insulation MIL-W-16878/25 MIL-W-16878/2 5 Wire, Electrical, Polytetrafluoroethylene (PTFE) Insulated, 260 ’C, 600 V, Extruded Insulation

S34. Terminology S34.1 Definitions— Definitions Definitions and terminology shall be in accordance with Terminology E344 Terminology E344.. S35. Classification S35.1 Design Type— Resistance Resistance thermometers and thermocouple sensors shall be classified according to the following variables: Example: ASTM F2362S32-KTC-TW-S7 Specification

Type

Configuration

F2362S32

KTC (see S35.2)

TW (see S35.3)

Designation Number S7 (see S35.4)

S35.2 Type— The The type of resistance thermometer or thermocouple cou ple sensor sensor sha shall ll be des design ignate ated d by one of the following following three-letter symbols: Type Type K thermocouple sensor Resistance therm om ometer with nickel element Resi Re sis sta tanc nce e th ther ermo mome mete terr wi with th pla lati tin num el elem eme ent

Symbols KTC NRT PRT PR T

S35.3 Configuration— Type Type of configuration for which the resistance resis tance thermometer thermometer or thermo thermocoupl couplee sens sensor or is inten intended ded shall be designated by one of the following two-letter symbols: Type of Configuration Thermowell Bare bulb Embedded

Symbols TW BB EM

S35.4 Designation Number— The The designation number used to specify the sheath length and other applicable parameters within each type of configuration shall be denoted by one or two numerals or by one or two numerals preceded by a letter found in one of the following: Type of Configuration TW BB EM

Table Number S7 S8 S9

S36. Ordering Information Information S36.1 The purchaser shall provide provide the manufacturer with all of the per pertin tinent ent app applic licati ation on dat dataa sho shown wn in acc accord ordanc ancee wit with h S36.2. If special application operating conditions exist that are not shown in the acquisition requirements, they shall also be described. S36.2 Acquisition Acquisition docume documents nts Acquisition Requir Requirements ements— — Acquisition should shoul d speci specify fy the follo following: wing: (1) Title, number, and date of this specification, (2) Classification required, (3) Design type, (4) Range, (5) Quantity required, (6) When qualification testing is required, (7) Disposition of qualification test samples, (8) Product marking requirements, and (9) Packaging requirements.

7

For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website. 8 Availab Av ailable le from Stand Standardiz ardization ation Documents Documents Order Desk, DODSS DODSSP P, Bldg Bldg.. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.

16


F2362 − 03 (2013) S37. Materials and Manufacture Manufacture

distilled water, sea water, salt, petroleum and silicone based oils, oil solvents, prolonged (greater than 1 month) periods of exposure to ambient temperatures, prolonged periods of exposure su re to el elev evat ated ed te temp mper erat atur ures es up to 20 205° 5°C C (4 (400 00°F °F), ), an and d exposu exp osure re to pro prolon longed ged cyc cyclin ling g per period iodss fro from m amb ambien ientt to elevated temperatures. A connecting wire and enclosure consisting of a ceramic-to-metal or a glass-to-metal seal shall also incorporat incor poratee other characteristic characteristicss to make it impen impenetrab etrable le to fluids and shall be considered a hermetic seal. The connecting wire end closure shall meet all the performance requirements specified spec ified in S39, including including the connecting connecting wire end clos closure ure requirement (see S42.8). S37.1.3 Fungus-inert Materials— Materials Materials which provide a nutrient medium for fungus and insects shall not be used in the constructi cons truction on of any resis resistance tance thermometer thermometer or thermo thermocoupl couplee sensor. S37.1.4 Restricte C admium m or cad cadmiu miummRestricted d Materials— Cadmiu plated parts shall not be used.

S37.1 Materials— Recomm Recommend ended ed mate material rialss of resi resista stance nce thermometerr and thermo thermomete thermocoupl couplee senso sensorr compo components nents are provided in Table S7. S37.1.1 Nonmetallic Materials— Nonmetals, Nonmetals, when used for seals, protective finishes, and so forth, shall be moisture and flame resistant, shall not support fungus growth, and shall not be adversely affected by the ambient environments specified in the performance requirements of this specification. S37.1.2 Connecting Wire The connecting Wire and End Closure— The wire and end closure shall be airtight, nonhygroscopic, fungus resistant, flame resistant, and able to form a chemical bond with conne connecting cting wires (therm (thermowell owell config configuratio uration), n), elect electrical rical connector conne ctor receptacle receptacle pins, (bare bulb configuration), configuration), or the connecting wire insulation (embedded configuration) and with the she sheath ath suf sufffici icient ent to mee meett the sea sealin ling g req requir uireme ements nts.. The conn co nnec ectin ting g wir wiree en end d cl clos osure ure sh shal alll no nott ch chem emica ically lly re reac act, t, degr de grad ade, e, or ou outg tgas as wh when en su subj bjec ecte ted d to th thee fo foll llow owin ing: g: ai airr,

TABLE S7 Materials Part Babbitt topping Connecting wire resistance thermometer

Configuration EM TW

BB EM

Connecting wire thermocouple sensor

TW

Material

Material Specification

Babbitt 22 AWG WG,, st stra rand nded ed ni nick ckel el-p -pla late ted d copper PTFE insulated 22 AWG WG,, st stra rand nded ed ni nick ckel el-p -pla late ted d copper 24 AWG WG,, st stra rand nded ed ni nick ckel el-p -pla late ted d or silver-plated copper

Connection head cap

TW

22 AWG, type K PTFE insulated 22 AWG, type K 24 AWG WG,, ty type pe K flu fluor oroc ocar arbo bon/ n/ polymide insulated Aluminum 356751

Connection head extension Connection head

TW TW

304 SST Aluminum

BB EM

identification plate Gasket Pins, connector Receptacle plug

Seal, ceramic to metal wire end enclosure Sheath

BB BB:PRT BB:NRT BB:KTC BB EM TW

Spring, compression Spring stop

BB EM BB,TW: NRT,PRT,KTC TW TW

Threaded fasteners Washers

TW TW

Sheath, internal insulation

302 set Copper Nickel-plated copper Ni Nickel-plated copper (+)chromel (-)alumel Glass to metal epoxy 316 SST or Inconel

MIL-W-81381 and MIL-W-81381/12 or MIL-W-16878 and MIL-W-16878/4 MIL-W-5846 ASTM D1457 MIL-W-5846 MILMI L-WW-81 8138 381/ 1/12 12 MIL-A-8625, type 1; 356 T6 ASTM A312 MIL-A-8625, type 1; 356 T6 MIL-P-15024 ASTM B152 MS 3102R-14S-7S MS 3106F-14S-7P MS 3102-R-12S-3P MS 3106F-12S-3S

ASTM A249 ASTM A269 ASTM B167 ASTM B164

UNS NO4405 99 % pure copper Aluminum Oxide or Magnesium Oxide Inconel 300 Series SST

Chemical certification on file required ASTM B637 ASTM A249 ASTM A269 ASTM A276 ASTM B167 ASTM A276 ASTM A276

Corrosion-resistant steel 316 SST

17

Remarks

ASTM B23, grade 2 MIL-W-16878 and MIL-W-16878/25 ASTM D1457 ASTM B355

Conduc Cond ucto tors rs IA IAW W MI MILL-WW-58 5846 46 and no plating Clear anodized

Clear anodized

Temper 0 Receptacle Plug Receptacle Plug

Required for type KTC

1 % not restricted 99.8 % pure, MgO 94 % for KTC Inconel, including grade 600

(1)


F2362 − 03 (2013) S38. Physical Properties Properties

sions and application temperatures for thermowell, bare bulb, and embedded configurations shall be in accordance with Table S8, Table S9, and Table S10 respectively.

S38.1 Construction— Resistance Resistance thermometers and thermocouple coup le se sens nsor orss ar aree sh show own n on Figs. Figs. S1.0-S S1.0-S6.0 6.0.. Resi Resistanc stancee thermomete therm ometerr and thermo thermocoupl couplee sens sensor or const constructi ruction on dimen dimen--

NOTE 1—Dimensions and tolerances are reference only to meet installation requirements. FIG. S1.0 Resistance Thermometer/Thermocouple Sensor Construction

18


F2362 − 03 (2013)

NOTE 1—( 1) Dimension to suit particular head design. (2) Inside diameter shall be sized to allow clearance for sensor sheath, spring stop, and spring. (3) Minimum wall thickness shall be 0.109 in.. FIG. S2.0 Connection Head Extension

NOTE 1—Dimensions and tolerances are reference only to meet installation requirements. FIG. S3.0 Connection Head Construction

19


F2362 − 03 (2013)

FIG. S4.0 Thermowell Type Resistance Thermometer/Thermocouple

20


F2362 − 03 (2013)

FIG. S5.0 Bare Bulb Type Resistance Thermometer/Thermocouple

21


F2362 − 03 (2013)

FIG. S6.0 Embedded Type Resistance Thermometer/Thermocouple

TABLE S8 Construction Dimensions and Application Temperatures, Thermowell Configuration

Type

A B

Designation

PRT

4

PRT

6

PRT

10

PRT

6

PRT

8

PRT

---

NRT

9

NRT

10

NRT

11

KTC

4

KTC

6

KTC

---

KTC

6

KTC

8

KTC

---

KTC

---

KTC

---

Insertion Length, cm (in.)

6.8 (2.69) 6.8 (2.69) 11.66 (4.59) 11.91 (4.69) 11.91 (4.69) 16.99 (6.69) 6.8 (2.69) 11.66 (4.59) 11.91 (4.69) 6.8 (2.69) 6.8 (2.69) 21.26 (8.37) 11.91 (4.69) 11.91 (4.69) 29.54 (11.63) 42.24 (16.63) 31.45 (12.38)

Dimensions, cm (in.) (see Fig. (see Fig. S1.0, S1.0 , Fig. S2.0, S2.0 , and Fig. S4.0) S4.0 ) L ± 1 mm (±0.04) 11.28 (4.44) 16.99 (6.69) 25.88 (10.19) 22.07 (8.69) 22.07 (8.69) 22.07 (8.69) 24.61 (9.69) 25.88 (10.19) 29.69 (11.69) 11.28 (4.44) 16.99 (6.69) 39.04 (15.37) 16.36 (6.44) 22.07 (8.69) 47.32 (18.63) 46.69 (18.38) 47.32 (18.63)

A ± 0.75 mm (±0.03) 4.45 (1.75) 10.16 (4.00) 14.22 (5.60) 10.16 (4.00) 10.16 (4.00) 5.08 (2.00) 17.78 (7.00) 14.22 (5.60) 17.78 (7.00) 4.45 (1.75) 10.16 (4.00) 17.78 (7.00) 4.45 (1.75) 10.16 (4.00) 17.78 (7.00) 4.45 (1.75) 15.88 (6.25)

YB 9.53 (3.75) 15.24 (6.00) 24.13 (9.50) 20.32 (8.00) 20.32 (8.00) 20.32 (8.00) 22.86 (9.00) 24.13 (9.50) 27.94 (11.00) 9.53 (3.75) 15.24 (6.00) 37.29 (14.68) 14.61 (5.75) 20.32 (8.00) 29.54 (11.63) 44.93 (17.69) 45.57 (17.94)

ZB

13.34 (5.25) 19.05 (7.50) 27.94 (11.00) 24.13 (9.50) 24.13 (9.50) 24.13 (9.50) 26.67 (10.50) 27.94 (11.00) 31.75 (12.50) 13.34 (5.25) 19.05 (7.50) 41.10 (16.18) 18.42 (7.25) 24.13 (9.50) 49.38 (19.44) 48.74 (19.19) 49.38 (19.44)

Temperature Range, °C(°F)A -40 to 316 (-40 to 600) -40 to 316 (-40 to 600) -40 to 538 (-40 to 1000) -40 to 316 (-40 to 600) -40 to 316 (-40 to 600) -40 to 316 (-40 to 600) -40 to 205 (-40 to 400) -40 to 205 (-40 to 400) -40 to 205 (-40 to 400) -40 to 316 (-40 to 600) -40 to 316 (-40 to 600) -40 to 816 (-40 to 1500) -40 to 316 (-40 to 600) -40 to 316 (-40 to 600) -40 to 816 (-40 to 1500) -40 to 316 (-40 to 600) -40 to 816 (-40 to 1500)

Thermowell Maximum Design Connection Number Head Temp, (B40.9) °C (°F) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500) 149 (300) 149 (300) 149 (300) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500) 260 (500)

For “A” dimensions less than 12.7 cm (5.0 in.) the temperature range is limited to 56°C (100°F) above the maximum connection head temperature. Reference dimension only. Y and Z as required to meet installation requirements.

22

2(E) 2(E) 4(E) 4(E) 4(E) --2(E) 4(E) 4(E) 2(E) 2(E) --4(E) 4(E) -------


F2362 − 03 (2013) (1) Thermowells have a 5.08 cm (2 in.) immersion depth, see S38.1.2(7), and (2) EM configuration installations, see S38.1.2 (8). S38.2.1 Resistance Thermometer Element: S38.2.1.1 Location— The The resis resistance tance therm thermomete ometerr eleme element nt shal sh alll be lo loca cate ted d wi with thin in th thee bo bott ttom om 2 in in.. of sh shea eath th fo forr th thee thermowell and bare bulb configurations. The resistance thermometer element for all configurations shall be located in a manner such that the installation resistance test requirements are met. S38.2.1.2 Resistan Resistance Resistance ce Therm Thermomete ometerr Curr Current— ent— Resistance thermometers shall withstand a continuous operating current of 6 milliamperes (mA) direct current (dc). S38.2.1.3 Temperatu Relationships emperature re versus Resistanc Resistance— e— Relationships for resistance thermometers shall be in accordance with Table S11 and Table S12 with limits of error specified in S39.2.

TABLE S9 Construction Dimensions and Application Temperatures, Bare Bulb Configuratio Configuration n Size, cm (in.) (see Fig. S5.0)) S5.0

Type

Designation

NRT

B1 B2 B3 B4

5.71 16. 6.5 5 5.71 16.5

(2.25) (6.50 (6.5 0) (2.25) (6.50)

8.89 (3.50) 19.6 .69 9 (7. 7.75 75)) 8.89 (3.50) 19.69 (7.75)

B5 B6

5.71 (2.25) 16.5 (6.50)

8.89 (3.50) 19.69 (7.75)

PRT

KTC

E ± 750 mi (0.03)

F ± 750 mi (0.03)

Temperature

-40 to 205 (-40 to 400 (-4 00)) -40 to 538 (-40 to 1000) -40 to 816 (-40 to 1500)

TABLE S10 Construction Dimensions and Application Temperatures, Embedded Configurati Configuration on Type

Designation

NRT PRT KTC

E1 E2 E3

Temperature Range, °C (°F) -40 to 205 (-40 to 400) -40 to 205 (-40 to 400) -40 to 205 (-40 to 400)

NOTE 1—Resistance thermometers with nickel elements shall not be used for temperature applications above 400°F.

S38.1.1 Resistance Thermometer— Resistanc Resistancee therm thermomometers have the following characteristics: (1) The two resistance thermometer elements have different temperature ranges (excluding the EM configuration): Nickel: -40 to 205°C (-40 to 400°F), Platinum: -40 to 538°C (-40 to 1000°F), (2) High accuracy, Excell ellen entt st stab abili ility ty an and d rep reprod roduc ucib ibili ility ty but sl slow ow in (3) Exc response, Easi sily ly in inte terc rcha hang ngea eabl blee bu butt da dama mage gess ea easi sily ly if no nott (4) Ea handle han dled d pro proper perly ly.. Can be mat matche ched d to clo close se tol tolera erance ncess for temperature difference measurements, and (5) Resistance thermometers with platinum elements should be specified for new construction and new instrument installations. Resistance thermometers with nickel elements should be restricted restr icted to retrofi retrofitt and repla replacemen cements ts only only.. S38.1.2 Thermocoup Thermocouple senso sensors rs Thermocouple le Sensor Sensors— s— Thermocouple have the following characteristics: (1) Simple construction, (2) Small signal output is produced which requires sensitive measuring instruments, Lowerr co cost st an and d fa fast ster er re resp spon onse se th than an th thee re resi sist stan ance ce (3) Lowe thermometer, temperature range of -40 (4) Type K thermocouple covers a temperature to 816°C (-40 to 1500°F) (excluding EM configuration), Compensa nsatio tion n for ref refere erence nce jun juncti ction on tem temper peratu ature re is (5) Compe required, (6) Attains high accuracy but subject to changes within the accura acc uracy cy lim limit it wit with h use use.. The These se cha change ngess bec become ome mor moree pro pro-nounced as the temperature increases, (7) Preferable for use with thermowells having a 5.08 cm (2 in.) immersion depth since the thermocouple thermocouple sens sensor’s or’s minimum immersion depth is significantly smaller than that of a resistance thermometer, and Preferable ble for use in the EM con configu figurat ration ion sin since ce ex(8) Prefera tremel tre mely y fine res resist istanc ancee the thermo rmomet meter er ele elemen mentt wir wiree is ver very y susceptible to electrical opens, shorts, or intermittent behavior in service. S38.2 New Const Resistance therm thermomete ometers rs with Constructi ruction— on— Resistance platinum plati num elements should be speci specified fied for new construction construction and new instrument installations with the following exceptions:

S38.2.2 Thermocouple: S38.2.2.1 Location— The The thermocouple measuring junction shall be ungrounded and located within the bottom 6.35 mm (1 ⁄ 4 in.) in.) of th thee sh shea eath th fo forr th thee th ther ermo mowe well ll an and d ba bare re bu bulb lb configurations. The thermocouple measuring junction shall be ungrounded and located in the middle of the sheath for the embedded configuration. S38.2.2.2 Connecting Wires— The The diameter of the connecting in g wi wire re sh shal alll be th thee AWG as sp spec ecifi ified ed in Tab able le S7 S7.. Th Thee connecting wire material shall also be in accordance with Table S7. S38.2.3 Resistance Thermometers: S38.2.3.1 E xternal Insul atio n ( TW an d EM The material for the external insulation shall Configurations)— The be specified in Table S7. S38.2.3.2 Color T he ex exte tern rnal al in insu sula latio tion n for th thee Color Cod Code— e— The single connecting wire attached to one end of the resistance thermometer element shall be color coded red. The external insulation for the two connecting wires attached to the other end of the resistance thermometer element shall be color coded white or amber. S38.2.3.3 I nternal I nsulat ion ( TW and BB T he resi resistan stance ce ther thermome mometer ter con connect necting ing Configurations)— The wires shall be insulated from the sheath and from each other by alumina (A12O3). The alumina shall be alpha alumina with a minimum content of 99.5 % alumina. Sulfur shall not exceed 50 parts per million (ppm) while carbon shall not exceed 200 ppm. S38.2.3.4 Numb The resis resistance tance Number er of Con Connec nectin ting g Wir ires— es— The thermometers shall be of three-wire construction except for the bare bulb configuration with a nickel element which shall be of two-wire construction. S38.2.4 Thermocouple Sensors: S38.2.4.1 E xternal Insul atin g ( TW an d EM The material for external insulation shall be Configurations)— The as specified in Table S7. S38.2.4.2 Color Code— The The external insulation for the positive (chomel) connecting wire shall be yellow. The external insulation for the negative (alumel) connecting wire shall be red. 23


F2362 − 03 (2013) S38.2.4.3 I nternal I nsulati on (T W and EM The therm thermocoup ocouple le sens sensor or conne connecting cting wires Configurations)— The shall be insulated from each other , except at the measuring junction, and from the sheath by magnesia (MgO). The magnesia shall be electrically fused with a 96.5 % minimum content of magnesia. The sulfur content shall be less than 50 ppm and the carbon content less than 200 ppm. S38.2.5 Thermowell Configuration: S38.2.5.1 Temperatur Maximum conne connecting cting Temperaturee Exposures Exposures— — Maximum head temperature shall be 300°F for resistance thermometers with nickel elements, 260°C (500°F) for resistance thermometers with platinum elements, and 260°C (500°F) for type K thermocouple sensors. S38.2.5.2 Watertight Resistance thermometers Watertight Enclosure— Resistance and thermocouple sensors shall be watertight such that water directed at the sensor from any angle is prevented from entry. S38.2.5.3 Construction— Thermowe Thermowell ll confi configura guration tion shal shalll consist cons ist of resis resistance tance thermometer thermometer or therm thermocoup ocouple le sens sensor, or, construction head, and a connection head extension as shown of Figs. S1.0-S4.0. S1.0-S4.0. S38.2.5.4 Connection Head Cap— The The connection head of the thermowell configuration shall be provided with a screw-on type cap with metal link chain. S38.2.5.5 Terminal Board— Terminal Terminal board shall be secured to the connection head. S38.2.5.6 Thermowells— When When resis resistance tance thermo thermometers meters and an d th ther ermo moco coup uple le se sens nsors ors ar aree int inten ende ded d fo forr us usee wi with th thermo the rmowel wells, ls, the the thermo rmowel wells ls sha shall ll be in acc accord ordanc ancee wit with h ASME B40.9, Supplement 1. S38.2.6 Bare Bulb Configuration: S38.2.6.1 Temperature Exposures— The The maximum connector receptacle and plug temperature shall be 149°C (300°F). S38.2.6.2 Watertight Resistance thermometers Watertight Enclosure— Resistance and thermocouple sensors shall be watertight such that water directed at the sensor from any angle is prevented from entry. S38.2.6.3 Construction— The The bare bulb configuration shall be of one-piece construction as shown on Fig. S5.0. S5.0.

S38.2.6.4 End Cap— The The connector receptacle shall be provided with a screw-on end cap. S38.2.6.5 Pressure Requirements— The The resistance thermometer and therm thermocoup ocouple le sensor shall withstand withstand 37.9 MPa (5500 psi) when inserted into air stream at a temperature of 182°C (360°F) with velocity of 12.2 m (40 ft) per second. S38.2.7 Embedded Configuration: S38.2.7.1 Temperatu Resistance thermomTemperature re Exposur Exposures— es— Resistance eters and therm thermocoup ocouple le senso sensors rs shall withstand withstand a maxim maximum um temper tem peratu ature re of 205 205°C °C (40 (400°F 0°F)) for con contin tinuou uouss use use,, 274 274°C °C (525°F)) for short term exposure (525°F exposure of 15 min, and 288°C (550°F) for short term exposure of 2 min. S38.2.7.2 Construction— The The embedded configuration shall consist of the resistance thermometer or thermocouple sensor as shown in Fig. S6.0. S6.0. S38.2.7.3 Scoring— The The mat materi erial al and con constr struct uction ion of the resistance thermometer or thermocouple sensor shall be such that in the event the bearing should fail and be wiped to a depth of 2.54 6 254 µm (0.10 6 0.01 0.01 in in.) .) ov over er th thee ar area ea of th thee resistance thermometer or thermocouple sensor, scoring of a carbon steel shaft having a Brinell hardness of 170 to 180 will be limited to a depth of 7.62 µm (300 µin.) or less. S38.2.7.4 Babbitt Toppin T he ti tip p of th thee sh shea eath th sh shal alll opping— g— The contain a 2.54 6 1.5 mm (0.10 6 0.06 in.) thick topping of babbitt. The diameter, including maximum to tolerance, of the babbitt topping shall conform to the diameter of the sheath. S38.2.8 Cle S urface ce of Cleanin aning g and Sur Surfac facee Fini Finishe shes— s— Surfa castings, cast ings, forgings, molded parts parts,, stamp stampings, ings, machined and welded parts shall be free of defects such as cracks, porosity, underc und ercuts uts,, voi voids, ds, and gap gapss as wel welll as san sand, d, dir dirt, t, fins fins,, sha sharp rp edges, scale, flux, and other harmful or extraneous materials. Extern Ext ernal al sur surfac facee sha shall ll be smo smooth oth and edg edges es sha shall ll be eit either her rounde rou nded d or bev bevele eled. d. The There re sha shall ll be no bur burn-t n-thro hrough ugh.. The There re shall be no warpage or dimensional change due to heat from welding operation. There shall be no damage to adjacent parts resulting from the welding.

TABLE S11 Temperature versus Resistance Characteristics for Resistance Thermometers with Nickel Elements Temperature °C (°F)

Resistance (Ohms)

Temperature °C (°F)

Resistance (Ohms)


Resistance (Ohms)

-40.0 (-40) -34.4 (-30) -28.9 (-20) -23.3 (-10) -17.8 (0) -12.2 (10) -6.7 (20) -1.1 (30) 0.0 (32) 4.4 (40) 10.0 (50) 15.6 (60)

92.75 96.39 100.07 103.80 107.57 111.40 115.28 119.21 120.00 123.19 127.23 131.32

21.1 (70) 26.7 (80) 32.2 (90) 37.8 (100) 43.3 (110) 48.9 (120) 54.4 (130) 60.0 (140) 65.6 (150) 71.1 (160) 76.7 (170) 82.2 (180)

135.46 139.66 143.92 148.24 152.61 157.04 161.54 166.09 170.71 175.39 180.13 184.94

87.8 (190) 93.3 (200) 98.9 (210) 104.4 (220) 110.0 (230) 115.6 (240) 121.1 (250) 126.7 (260) 132.2 (270) 137.8 (280) 143.3 (290) 148.8 (300)

189.81 194.75 199.75 204.83 209.97 215.18 220.46 225.82 231.24 236.74 242.32 247.96

24

Temperature °C (°F) 154.4 (310) 160.0 (320) 165.6 (330) 171.1 (340) 176.7 (350) 182.2 (360) 187.8 (370) 193.3 (380) 198.9 (390) 204.4 (400)

Resistance (Ohms) 253.69 259.48 265.36 271.32 277.35 283.46 289.66 295.93 302.29 308.73


F2362 − 03 (2013) TABLE S12 Temperature versus Resistance Characteristics for Resistance Thermometers with Platinum Elements Temperature °C (°F)

Resistance (Ohms)


Resistance (Ohms)


Resistance (Ohms)

-40.0 (-40) -28.9 (-20) -17.8 (0) -6.7 (20) 0.0 (32) 4.4 (40) 15.6 (60) 27.6 (80) 37.8 (100) 48.9 (120) 60.0 (140) 71.1 (160) 82.2 (180) 93.3 (200)

83.97 88.44 92.90 97.34 100.00 101.77 106.18 110.58 114.96 119.33 123.69 128.03 132.35 136.67

100.0 (212) 104.4 (220) 126.7 (260) 137.8 (280) 148.8 (300) 160.0 (320) 171.1 (340) 182.2 (360) 193.3 (380) 204.4 (400) 215.6 (420) 226.7 (440) 237.8 (460) 248.9 (480)

139.24 140.96 149.51 153.76 158.00 162.22 166.43 170.63 174.81 178.97 183.12 187.26 191.38 195.49

260.0 (500) 271.1 (520) 282.2 (540) 293.3 (560) 304.4 (580) 315.6 (600) 326.7 (620) 337.8 (640) 348.9 (660) 360.0 (680) 371.1 (700) 382.2 (720) 393.3 (740) 404.4 (760)

199.58 203.66 207.72 211.77 215.81 219.83 223.83 227.82 231.80 235.76 239.71 243.64 247.56 251.46

S39. Performance Requiremen Requirements ts

TABLE S13 Accuracy (Span of Limits of Error)

255.35 259.23 263.09 266.93 270.77 274.58 278.39 282.17 285.95 289.71 293.45 297.18

S39.6 Over-te Resistance Over-tempera mperatur turee (EM Config Configuratio uration)— n)— Resistance thermometers and thermocouple sensors shall conform to the temperature span and accuracy requirements specified in S39.2 after aft er bei being ng sub subjec jected ted to ove overr-tem temper peratu ature. re. Dur During ing ove overrtemperature, there shall be no shorts, opens, or evidence of intermittent behavior. The reference measurement performed at the conclusion of over-temperature shall conform to S39.2 (see S42.5).

Limits of Error

Resistance Thermometers with Nickel Elements -40 to 93 (-40 to 200) ±1.1°C (2°F) 93 to 205 (200 to 400) ±1 % of temperature measured Resistance Thermometers with Platinum Elements -40 to 277 (-40 to 530) ±1.1°C (2°F) 277 to 538 (530 to 1000) ± 3 ⁄ 8 % of temperature measured Thermocouple Sensors -40 to 277 (-40 to 530) ±1.1°C (2°F) 277 to 816 (530 to 1500) ± 3 ⁄ 8 % of temperature measured

S39.7 Termi Terminal nal Str Strength ength (TW and EM Config Configurati urations)— ons)— Attachment of connecting wires to the connecting wire end closure and their encapsulation into the sheath shall withstand the spe specifi cified ed sta static tic loa load. d. The res resist istanc ancee the thermo rmomet meters ers and ther th ermo moco coup uple le se sens nsor orss sh shal alll be ax axia iall lly y lo load aded ed fo forr 15 mi min n without causing circuit failure or loss of watertight integrity (seee S42 (se S42.7) .7).. The ref refere erence nce mea measur sureme ement nt per perfor formed med at the conclusion of static loading shall conform to S39.2.

S39.2.1 Accuracy Repeatability— The T he sp span an an and d li limi mits ts of error shall be as specified in Table S14. TABLE S14 Accuracy Repeatability (Span of Limits of Error) Temperature Range, ° C (°F)

415.6 (780) 426.7 (800) 437.8 (820) 448.9 (840) 460.0 (860) 471.1 (880) 482.2 (900) 493.3 (920) 504.4 (940) 515.6 (960) 526.7 (980) 537.8 (1000)

Resistance (Ohms)

S39.5 Thermal Cycling— When When subjected to 1500 thermal cycles, there shall be no shorts, opens, or evidence of intermittent behavior. behavior. The resis resistance tance thermometers thermometers and the thermocouple sensors shall show no evidence of physical damage as result res ult of the therma rmall cyc cyclin ling. g. The ref refere erence nce mea measur sureme ement nt per per-formed at the conclusion of the thermal cycling shall conform to S39.2.

S39.1 Insulation Resistance— The The insulation resistance shall be de dete term rmin ined ed at 50 VD VDC C an and d sh shal alll be no le less ss th than an 10 megohms. S39.2 Accuracy— The The span and limits of error shall be as specified in Table S13 (see S42.2). Temperature Range, ° C (°F)


Limits of Error

Resistance Thermometers with Nickel Elements -40 to 93 (-40 to 200) ±0.6°C (1°F) 93 to 205 (200 to 400) ±0.5 % of temperature measured Resistance Thermometers with Platinum Elements -40 to 277 (-40 to 530) ±0.6°C (1°F) 16 % of temperature 277 to 538 (530 to 1000) ± 3 ⁄ 16 measured Thermocouple Sensors -40 to 277 (-40 to 530) ±0.6°C (1°F) 16 % of temperature 277 to 816 (530 to 1500) ± 3 ⁄ 16 measured

S39.8 Connecting Wire end Closure— When subjected to a vacuum or pressure, there shall be no physical damage to the resistance thermometers and thermocouple sensors and there shall sha ll be no obs observ erved ed evi eviden dence ce of air bub bubble bless whi while le und under er vacuum. After application of vacuum and pressure, the performance of the resistance thermometers and thermocouple sensors shall conform to S39.1 and S39.2 (see S42.8). S39.9 Enclosure (TW and BB configurations)— There There shall be no lea leakag kagee of wat water er int into o the watertig watertight ht enc enclos losure ure (see S42.9).

S39.2.2 Reference Measure The per perfor forman mance ce sha shall ll Measurement— ment— The conform to S39.2 (see S42.2.2). S39.3 Respo Response se tim timee of the res resist istanc ancee Response nse Time— Time— Respon thermometers and thermocouple sensors shall be as follows: (1) 8 s or less for thermowell configuration, (2) 15 s or less for bare bulb configuration, and (3) 5 s or less for embedded configuration. S39.4 Self-heati The Self-heating ng (Resis (Resistance tance Ther Thermomet mometers ers only) only)— — The temp te mper erat atur uree ch chan ange ge du duee to se self lf he heat atin ing g of th thee re resi sist stan ance ce thermometers shall not exceed 0.6°C (1°F) at an input power level of 5 milliwatts (see S42.4).

S39.10 Salt Spray Resistance thermo thermomete meters rs and therm thermooSpray— — Resistance couple sensors shall show no appreciable corrosion or other damage dam age whe when n sub subjec jected ted to sal saltt spr spray ay (S4 (S42.1 2.10). 0). The per perfor for-mance of the resistance thermometers and thermocouple sensors shall conform to S39.1 and S39.2. S39.11 Spring When comSpring Loadi Loading ng (TW Config Configurati uration)— on)— When 3 16 in.), the spring shall exert a minimum pressed 7.62 cm ( ⁄ 16 force of 2.27 kg (5 lb) (S42.11). 25


F2362 − 03 (2013) S39.12 Vibration— When When exp expose osed d to vib vibrat ration ion per MIL MIL-STD-167-1, STD-1 67-1, the resis resistance tance therm thermomete ometers rs and therm thermocoup ocouple le sensors shall show no evidence of improper operation, failure, or damage (see S42.12). The electrical signal from the resistance thermometer and thermocouple sensor shall be monitored during vibration and there shall be no shift in the temperature indication. A reference measurement performed at the conclusion sio n of vib vibrat ration ion sha shall ll mee meett the spe specifi cified ed acc accura uracy cy req requir uireements of S39.2. S39.13 Shock— Resistance Resistance thermometers and thermocouple sensors shall withstand the effects of shock in accordance with MIL-S-9 MIL -S-901 01 (S4 (S42.1 2.13). 3). A ref refere erence nce mea measur sureme ement nt per perform formed ed after aft er exp exposu osure re to sho shock ck sha shall ll mee meett the spe specifi cified ed acc accura uracy cy requirements of S39.2. S39.14 Pressure (EM Configuration)— The The embedded resistance thermometers and thermocouple sensors shall not deform to such a degree that the babbitt surface is visually determined to be dimpled, cracked, or ruptured after exposure to a pressure of 12.4 MPa (1800 lb/in.2) gauge gauge.. The insul insulation ation resistance resistance between each connecting wire and the babbitt surface shall be no less than 10 megohms when measured both before and at the conclusion conclusion of expos exposure ure to press pressure. ure. The resis resistance tance thermometers and thermocouple sensors shall meet the reference measur mea sureme ement nt req requir uireme ements nts of S39 S39.2 .2 bot both h bef before ore and at the conclusion of exposure to pressure (S42.14). S39.15 Scoring (EM Configuration)— The The stylus traces resulting from the application of a scoring force of 3.63 kg (8 lb) shall not indicate a scoring depth exceeding 7.62 micrometers (300 microinches) (S42.15).

S42.2 Accuracy— Resista Resistance nce ther thermome mometers ters and ther thermomocouple cou ple sen sensor sorss sha shall ll be cal calibr ibrate ated d in acc accord ordanc ancee wit with h the requirements of S39.2. The temperature of the bath fluid shall be as shown in Table S15, 62.8°C (5°F), with a temperature 1 10 °F), 0.28°C ( ⁄ 2 °F) for salt bath, gradient gradi ent of 60.0 0.06°C 6°C (1 ⁄ 10 under und er ste steady ady sta state te tem temper peratu ature re con condit dition ions. s. The res resist istanc ancee thermomete therm ometers rs and therm thermocoup ocouple le senso sensors rs shall be calib calibrated rated at temperatures listed in the increasing order. Performance shall conform to S39.2. TABLE TA BLE S15 Calibration Temperatures Temperatures Confi Co nfigu gura rati tion on TW, BB

Typ ype e NRT PRT

EM

A

Temperature Range, (°F) -40 to 205 (-40 to 400) -40 to 538 (-40 to 1000)

KTC

-40 to 816 (-40 to 1500)

NRT, PRT, KTC

-40 to 205 (-40 to 400)

Calibration Val Values, ues, (°F) -29, 0, 27, 82, 138, 193 (-20, 32 A , 80, 180 A , 280, 380 A ) -29, 0, 93, 205, 316, 427, 527 (-20, 32 A , 200A , 400, 600 A , 800, 980A ) -29, 0, 93, 205, 316, 482, 649 (-20, 32 A , 200, 400, 600 A , 900, 1200A ) -29, 0, 27, 82, 138, 193 (-20, 32 A , 80, 180 A , 280, 380 A )

These values shall be used for reference measurement (see S42.2.2).

S42.2.1 Accuracy Repeatability— The The accuracy test speci speci-fied in S42.2 shall be performed two additional times. Performance shall conform to S39.2.1. S42.2.2 Reference T he ac accu cura racy cy te test st as Reference Measur Measurement— ement— The specified in S42.2 shall be referred to as a “reference measurement” when performed at the conclusion of another test listed in Tab able le S1 S15. 5. Th Thee re refe fere renc ncee me meas asur urem emen entt sh shal alll on only ly be conducted at the temperatures that are specified for a reference measur mea sureme ement nt in Tabl ablee S15 S15.. Per Perfor forman mance ce sha shall ll con confor form m to S39.2.2. S42.3 Response Time— Resistance Resistance therm thermomete ometers rs and ther ther-moco mo coup uple le se sens nsor orss sh shal alll be te test sted ed in ac acco cord rdan ance ce wi with th th thee conditions of Table S16. The low or high temperature test shall be use used d dep depend ending ing upo upon n the configura configuratio tion n and the typ typee of resist res istanc ancee the thermo rmomet meter er or the thermo rmocou couple ple sen sensor sor cri criter teria ia in Table S17. The time it takes the standard cylinder output to rise from an equivalent temperature from T1 to T2 in Table S16 shall sha ll be the sta standa ndard rd cyl cylind inder er res respon ponse se tim time. e. The sta standa ndard rd cylinder response time shall be within the values listed in Table S16 S1 6 fo forr at le leas astt si six x co cons nsec ecut utiv ivee tr tria ials ls no nott co coun untin ting g th thos osee performed in establishing the proper temperature bath conditions (temperature, orientation, stirrer speed, and so forth). The respon res ponse se tim timee of the res resist istanc ancee the thermo rmomet meters ers and the thermo rmo-couple cou ple sensors sensors sha shall ll be the average average of at lea least st six readings readings taken during at least six consecutive trials where the standard cylinder was within the values specified in Table S16. The test conditions condi tions of the resis resistance tance thermometers thermometers and thermo thermocoupl couplee sensors sens ors are also those contained in Table S17. Perfo Performanc rmancee shall conform to S39.3.

S40. Workmanship orkmanship,, Finish, and Appearance S40.1 Cleaning and Surface Finishes— Surfaces Surfaces of castings, forgings, molded parts, stampings, machined and welded parts shalll be free of defec shal defects ts such as crack cracks, s, poros porosity ity,, under undercuts, cuts, voids and gaps as well as sand, dirt, fins, sharp edges, scale, flux,, and oth flux other er har harmfu mfull or ext extran raneou eouss mat materi erials als.. Ext Extern ernal al surfaces shall be smooth and edges shall be either rounded or beveled. There shall be no burn-through. There shall be no warpag war pagee or dim dimens ension ional al cha change nge due to hea heatt from welding welding operation. There shall be no damage to adjacent parts resulting from welding. S41. Numb Number er of Tests and Retests S41. S4 1.1 1 Th Thee nu numb mber er of te test stss an and d re rete test sts, s, if an any y, sh shal alll be specified in the acquisition requirements. S42. Test Methods S42.1 Insulation Resistance— Insulation Insulation resistance shall be determ det ermine ined d by app applyi lying ng 50 V (dc (dc)) bet betwee ween n the con connec nectin ting g wires and the sheath. Performance shall conform to S39.1.

26


F2362 − 03 (2013) S42.3.4 Determining Response Time— The The resistance thermometer or thermocouple sensor (or standard cylinder) shall be immersed in the hot temperature bath until there is no further indication of temperature rise. The resistance thermometer or thermo the rmocou couple ple sen sensor sor (or sta standa ndard rd cyl cylind inder) er) sha shall ll the then n be immersed in the cold temperature bath until there is no further indication of temperature decrease. The resistance thermometer or thermocouple sensor (or standard cylinder) shall again be imm immers ersed ed in the hot tem temper peratu ature re bat bath. h. Ti Timin ming g sha shall ll be started when the resistance thermometer or thermocouple (or stand stan d cylin cylinder) der) indic indicator ator reac reaches hes tempe temperatur raturee T1 (see Table S16) and stopped when temperature T 2 is reached. The time it takes the resistance thermometer or thermocouple (or standard cylinder) cylin der) to indic indicate ate the dif differen ference ce betwe between en tempe temperature raturess T1 and T2 shall be defined as the response time. S42.3.5 Condu The res respon ponse se Conductin cting g Res Respon ponse se Time Test est— — The time test shall be conducted by taking alternate response time measurements between the standard cylinder and the thermometerr. Eac ete Each h alt altern ernati ation on of the sta standa ndard rd cyl cylind inder’ er’ss the then n the thermometer’s response time measurements shall be defined as a trial. S42.4 Self-heating The sel selffSelf-heating (Resis (Resistance tance Therm Thermomete ometers)— rs)— The heat he atin ing g te test st sh shal alll be co cond nduc ucte ted d in a wa wate terr ba bath th un unde derr th thee conditions specified in S42.2. A resistance thermometer shall be im imme mers rsed ed in th thee wa wate terr ba bath th to at le leas astt th thee mi mini nimu mum m immersion depth and allowed to stabilize at 82°C (180°F). A series of direct currents shall be passed through the resistance thermo the rmomet meter er ele elemen ments ts and mai mainta ntaine ined d unt until il ste steady ady sta state te is attained such that the power impact is successively 0.5, 1.0, 3.0, and 5.0 milliwatts. A curve of the indicated temperature versus power input shall be plotted and extrapolated to zero power input. The difference between the indicated temperature at 5 milliwatts input and the extrapolated value at the indicated temperature at zero power input is the effect due to self heating. Performance shall conform to S39.4. S42.5 Thermal Cycling— Resistance Resistance thermometers and thermocouple sensors shall be heated and cooled for 1500 cycles in accordance with Table S18. Cycle rate shall not exceed two cycles per minute. The output of the resistance thermometers and thermocouple sensors shall be monitored during thermal cyclin cyc ling. g. Con Connec nectio tion n hea head d tem temper peratu ature re sha shall ll not exc exceed eed the maximum connection head temperature specified in Table S7. Prior to and following the test, a reference measurement as specifi spe cified ed in S42 S42.2. .2.2 2 sha shall ll be con conduc ducted ted.. Per Perform formanc ancee sha shall ll conform to S39.5.

TABLE S16 Response Time Test Conditions Low Temperature Test

Test Conditions

High Temperature Test

Maxi Ma ximu mum m te temp mper erat atur ure e °C (° (°F) F)

205 20 5 (4 (400 00))

Bath medium Bath temperature °C (°F) Initial temperature °C (°F) (Start timing) temperature T 1°C (°F) (Stop timing) temperature T 2°C (°F) Standard cylinder response time (s)

Water 82 (180) 10 (50) 27 (80)

538, 81 538, 816 6 (1 (100 000, 0, 1500) Salt 505 (940) 238 (460) 305 (580)

62 (1 (143 43.2 .2))

431 43 1 (8 (808 08))

6.0 ± 0.2

8.0 ± 0.2

TABLE S17 Conditions for Temperature Configuration TW BB

EM

Type NRT PRT, KTC NRT PRT, KTC NRT, PRT, KTC

Temperature Test Low High Low High Low

S42.3.1 Standard standa ndard rd cyl cylind inder er sha shall ll be Standard Cylinder— A sta used us ed fo forr th this is te test st.. Th Thee in info form rmat atio ion n ne need eded ed to co cons nstru truct ct a standard cylinder is provided on Fig. S7.0. S7.0. Connecting wires from the standard cylinder thermocouple shall terminate at an ice bottle, ice point reference junction or a reference junction compensated electronic indicator. If an ice bottle or ice point reference junction is used, the extension wires coming from the reference junction shall be connected to an indicator such as a potentiometer or a millivolt recorder. No matter what form of indicator is used, the indicator shall have a response time not less le ss th than an tw two o ti time mess fa fast ster er th than an th thee re resp spon onse se ti time me of th thee temperature rise that the standard cylinder will measure (see Table ts16). ts16). Response time measurement shall be conducted using either a stop watch or any method capable of timing to 0.2 s or better. S42.3.2 Temperature Bath— Two Two temperature baths are used in performing this test. The baths shall be sufficiently large or constructed in such a manner that the temperature bath fluid will not be cooled by greater than 0.5 % of the span when either eit her the cyl cylind inder er or the filled sys system tem thermome thermometer ter is immersed. The “hot” bath shall contain a variable speed stirrer. Two liq liquid uid tem temper peratu ature re bat bath h flui fluids ds and tem temper peratu atures res are permissible for use with this test and are specified in Table S16. One fluid temperature is referred to as the “cold bath temperature” while the other is referred to as the “hot bath temperature.” S42.3.3 Set Up— The The conditions in the hot temperature bath fluid shall be set up such that the standard cylinder response time will be within the limits specified in S39.3. Hot temperaturee bat tur bath h flui fluid d con condit dition ionss and and,, thu thus, s, the sta standa ndard rd cyl cylind inder er response time, will be changed by varying the stirring parameters. The standard cylinder shall be immersed in the temperature bath fluid to the bottom of the standard cylinder collar (see Fig. S7.0 for S7.0 for location). The standard cylinder shall always be immersed in the hot temperature bath fluid in the same location and an d in th thee sa same me or orie ient ntat atio ion. n. Th Thee im imme mers rsio ion n de dept pth h of th thee standard stan dard cylin cylinder der thermo thermocoupl couplee meas measuring uring junct junction ion and the immers imm ersion ion dep depth th of the emb embedd edded ed con configu figurat ration ion res resist istanc ancee thermometer or thermocouple sensor shall be maintained at the same level.

TABLE S18 Thermal Cycling Conditions Temperature Range, °C (°F) -51 to 205 (-60 to 400) -40 to 538 (-40 to 1000) -40 to 816 (-40 to 1500)

Cycle Temperature, °C (°F) ±10 % Lower Upper 182 (360) 205 (400) 38 (100) 482 (900) 93 (200) 649 (1200)

S42.6 Over-te Resistance Over-tempera mperatur turee (EM Config Configuratio uration)— n)— Resistance thermomet thermo meters ers and the thermo rmocou couple ple sen sensor sors, s, whi while le at amb ambien ientt temper tem peratu ature, re, sha shall ll be qui quickl ckly y (wi (withi thin n 2 s) imm immers ersed ed for a period of 15 6 0.5 min in a temperature bath in which the fluid is stabilized to a temperature of 274 6 2.8°C (525 6 5°F). The resistance resis tance therm thermomete ometerr or thermo thermocoupl couplee sens sensor or immer immersion sion depth shall be 7.62 cm ( 3 ⁄ 16 16 in.) if not installed in a fixture. If the resistance thermometer or thermocouple sensor is installed 27


F2362 − 03 (2013)

FIG. S7.0 Standard Cylinder

in a fixture, it shall be immersed to a sufficient depth to provide an accur accurate ate bath temperature temperature meas measureme urement. nt. The resis resistance tance thermometers or thermocouple sensors shall then be quickly immers imm ersed ed in ano anothe therr tem temper peratu ature re bat bath h con contai tainin ning g the sam samee fluid stabilized at a temperature of 288 6 2.8°C (550 6 5°F) to th thee sp spec ecifi ified ed de dept pth h fo forr a pe perio riod d of 2 6 0.05 0.05 min min.. The resistance thermometers or thermocouple sensors shall then be

quickly immersed in the first temperature bath in which the fluid is stabilized at a temperature of 274 6 2.8°C (525 6 5°F) to the specified depth for a period of 15 6 0.5 min. The output of the resistance thermometers or thermocouple sensors shall be monitored during this test. The resistance thermometers or thermocoup therm ocouple le senso sensors rs shall reach the bath fluid temperature temperature within 1 min after immersion into a temperature bath whether 28


F2362 − 03 (2013) or not a text fixture is used. A reference measurement shall be perfor per formed med at the con conclu clusio sion n of thi thiss tes test. t. Per Perfor forman mance ce sha shall ll conform to S39.6. S42.7 Termi Terminal nal Str Strength ength (TW and EM Config Configurati urations)— ons)— With Wi th the resis resistance tance thermometers thermometers and therm thermocoup ocouple le sens sensors ors firmly held in a holding fixture, a static tensile load of 2.27 kg (5 lb) shall be applied to each connecting wire simultaneously for 15 min for the thermowell configuration. For the embedded configuration, a static tensile load of 2.27 kg (5 lb) shall be applied to each connecting wire separately. The direction of the load loa d sha shall ll be alo along ng the lon longit gitudi udinal nal axi axiss of the res resist istanc ancee thermometers and thermocouple sensors. A reference measurement shall be performed at the conclusion of this test. The performance shall conform to S39.7. S42.8 Connecting Wire End Closure— During During this test, the resist res istanc ancee the thermo rmomet meters ers and the thermo rmocou couple ple sen sensor sorss of the thermowell configuration shall be removed from the connection head. No end cap shall be threaded over the connector receptacl rece ptaclee of the resis resistance tance thermometers thermometers and therm thermocoup ocouple le sensors of the bare bulb configuration. Connecting wire end closure shall meet the requirements specified in S39.8. S42.8.1 Vacuum Portion— The The desiccator shall be half filled with wit h wat water er and eva evacua cuated ted of dis dissol solved ved air air.. The res resist istanc ancee thermometers and thermocouple sensors shall be immersed in this desiccator. The desiccator shall then be subjected to an absolute pressure of 27.5 kPa 6 3.5 kPa (4.0 6 0.5 lb/in.2) for 15 min. The conne connecting cting wire end closu closure re shall be obser observed ved for evidence of air leaks. S42.8.2 Pressur The res resista istance nce the thermom rmometer eterss Pressuree Portion— The and thermocouple thermocouple sensors shall be place placed d insid insidee a press pressure ure chambe cha mberr and the pre pressu ssure re cha chambe mberr sha shall ll be hyd hydros rostat tatica ically lly 2 pressurized with water to 172.4 6 3.5 kPa (25 6 5 lb/in. ) for a period of no less than 15 6 0.5 min. S42.8.3 Post Test Measurements— At At the conclusion of this test, tes t, an ins insula ulatio tion n res resist istanc ancee tes testt fol follow lowed ed by a ref refere erence nce measurement shall be performed. Performance shall conform to S39.8. S42.9 Enclosures (TW and BB Configurations)— The The resis resis-tance thermometers and thermocouple sensors of the thermowell configuration shall be tested with the thermowell attached to the connection head extension and a threaded plug inserted into the connection head conduit connection. The resistance thermometers and thermocouple sensors of the bare bulb configurati ra tion on sh shal alll be te test sted ed wi with th an en end d ca cap p th thre read aded ed ov over er th thee connector receptacle. The test shall consist of a solid stream of water from a 2.54 cm (1 in.) diameter nozzle at a rate of 246 L (65 gal gal)) per minute. minute. The str stream eam shall shall be directed directed on all surfac sur faces es of the equipmen equipmentt and its mou mounti nting ng sur surfac facee fro from m a maximum maxim um distance distance of 3.048 m (10 ft) and for a minimum of 60 min. S42.10 Salt Spra Resistance thermo thermometers meters and thermo thermo-Spray— y— Resistance couple cou ple sensors sensors sha shall ll be sub subjec jected ted to the salt spr spray ay tes testt in accordance with ASTM B117. The salt spray test shall run for a du dura rati tion on of 96 h. Th Thee sa salt lt so solu luti tion on sh shal alll be 5 6 1 % concentration (5 parts by weight of salt in 95 parts by weight of water). At the conclusion of this test, an insulation resistance resistance test followed by a reference measurement shall be performed. Performance shall conform to S39.10.

S42.10.1 Thermowell The resis resistance tance therThermowell Configuration— The mometer or thermocouple sensor shall be removed from the connection head when the test has reached the 48 h point. A plug pl ug sh shal alll be th thre read aded ed in into to th thee co conn nnec ecti tion on he head ad co cond ndui uitt connection (see Fig. (see Fig. S3.0) S3.0) and a thermowell shall be threaded onto ont o the con connec nectio tion n hea head d ext extens ension ion.. The con connec nectio tion n hea head d (including connection head extension, plug, and thermowell) and the resistance thermometer or thermocouple sensor shall be separately subjected to the salt spray test. S42.10.2 Bare The res resist istanc ancee the therrBare Bulb Config Configurati uration— on— The mometers and thermocouple sensors shall be subjected to the salt spray test without an end cap threaded over the connector receptacle. S42.11 Spri Resistance Spring ng Loa Loading ding (TW Con Configu figurat ration) ion)— — Resistance thermometers and thermocouple sensors shall be mounted in a 16 in.) three successive times. jig and compressed 7.62 cm (3 ⁄ 16 Thee co Th comp mpre ress ssiv ivee fo forc rcee of th thee sp spri ring ng sh shal alll be me meas asur ured ed.. Performanc Perfo rmancee shall conform to S39.1 S39.11. 1. S42.12 Vibration— The The vibration test shall be in accordance with wit h MIL MIL-ST -STD-1 D-16767-1 1 exc except ept as mod modifie ified d her herein ein and sha shall ll consist of the exploratory test, the variable frequency test, and thee en th endu dura ranc ncee te test st.. Th Thes esee te test stss sh shal alll be co cond nduc ucte ted d in th thee sequence listed and shall meet the requirements specified in S39.12. Each of the three tests shall be conducted in each of the three thr ee mut mutual ually ly per perpen pendic dicula ularr axe axes. s. All thr three ee tes tests ts sha shall ll be completed in one axis before performing the tests in the other axis. The resistance thermometers and thermocouple sensors shall be secured to the fixture in the surface mounted configuration. S42.12.1 Exploratory Test: (1) Maintain each discrete frequency from 5 to 100 Hz at 1 Hz intervals for a minimum of 15 s, or a sweep rate that shall not exceed 4 Hz per minute. Displaceme ement nt or acc accele elerat ration ion sha shall ll be as spe specifi cified ed in (2) Displac Table S19. TABLE S19 Vibration Displacement Criteria Frequency Range, (Hz) (incl) 5 to 20 21 to 50 51 to 100

Table Displacement Exploratory Test, µm (in.) 508 ± 100 (0.020 ± 0.004) 254 ± 50 (0.010 ± 0.002) 127 ± 25 (0.005 ± 0.001)

Variable Frequency Variable Test, µm (in.) Peak to Peak 1524 ± 300 (0.060 ± 0.012) 1016 ± 200 (0.040 ± 0.008) 508 ± 100 (0.020 ± 0.004)

(3) Frequencies and locations where resonance occurs during this test shall be noted. S42.12.2 Variable Frequency Test: (1) Discrete frequency interval of 1 Hz. (2) Frequency range 5 to 100 Hz. Each h di disc scre rete te fr freq eque uenc ncy y sh shal alll be ma main inta tain ined ed fo forr a (3) Eac minimum of 5 min. (4) Displacements shall be as specified in Table S19. (5) Frequencies and locations where resonance occurs during this test shall be noted. S42.12.3 Endurance Test: (1) The resistance thermometers and thermocouple sensors shall be subjected to a 2-h endurance run at each resonance. (2) Displacement or acceleration shall be the variable frequency test values specified in Table S19. 29


F2362 − 03 (2013) resonance ance is found, a 2-h perfor performanc mancee run shall be (3) If no reson perf pe rfor orme med d at 10 100 0 Hz Hz.. A re refe fere renc ncee me meas asur urem emen entt sh shal alll be performed after the conclusion of the vibration test. Performance shall conform to S39.12.

6 0.10

in.) of material from the protruding tip of the resistance thermomete therm ometers rs or thermo thermocoupl couplee sens sensors. ors. Upon completion completion of the test, removal of any babbitt from the surface of the shaft shall be accomplished by the use of 20 % sodium hydroxide solution. A stylus trace of the shaft surface parallel to the axis of the shaft shall be performed at the same six equally spaced intervals around the circumference of the shaft. Performance shall conform to S39.15.

S42.13 Shock— Shoc S hock k te test stss sh shal alll be in ac acco cord rdan ance ce wi with th MIL-S-901 grade A, class I, type C for lightweight equipment. Resistanc Resi stancee therm thermomete ometers rs and therm thermocoup ocouple le sens sensors ors shal shalll be mounted to simulate actual installation. Resistance thermometers and thermocouple sensors shall be mounted no less than 7.62 cm (3 in.) from the side and 7.62 cm (3 in.) from the rear of the platform. Output during the test shall be monitored. A reference measurement shall be performed at the conclusion of this test. Performance shall conform to S39.13. S42.14 Pressure (EM Configuration)— The The resistance thermometers and thermocouple sensors under test, which will be used only for this one test, shall be installed in a fixture made from mild steel. The critical dimensions to which the fixture shall conform are shown in Fig. S7.0. S7.0. The entire counterbored 3 1.9 cm ( ⁄ 4-in.) diameter surface shall be babbi babbitted tted over, using babbitt that conforms to grade 2 of Specification B23, flush with wi th th thee to top p of th thee te test st fix fixtu ture re.. Th Thee in insu sula lati tion on re resi sist stan ance ce between betwe en each connecting connecting wire and the babbi babbitt tt surfa surface ce shall then be measured. The babbitt surface shall then be exposed to a pressure of 12.4 MPa (1800 6 10 lb/in.2) for 5 6 0.25 min. After completion completion of this test, the insul insulation ation resistance resistance shall be measured in the same manner as before the test. The fixture shall sha ll be unb unbabb abbitt itted ed and a ref refere erence nce mea measur sureme ement nt sha shall ll be performed. perfo rmed. Performance Performance shall conform to S39.1 S39.14. 4. S42.15 Scoring— The The resistance thermometers and thermocouple sensors under test, which will be used only for this one test, shall be installed in a fixture made from mild steel. The critic cri tical al dim dimens ension ionss to whi which ch the fixt fixture ure sha shall ll con confor form m are shown in S39. The resistance thermometers and thermocouple sensors under test shall not contain a babbitt topping, and the connecting wire shall be severed. The entire 1.9 cm ( 3 ⁄ 4 in.) diameter counterbored surface shall be babbitted over using babbitt that conforms to Grade 2 of Specification B23 with 3 mm 6 254 µm (0.12 6 0.01 in.) of the resistance thermometers and thermocouple sensors protruding above the babbitt surface. The protruding tip of the resistance thermometers and thermocouple sensors shall be brought into contact with a 5.08 cm 6 254 µm (2.00 6 0.01 in.) diameter shaft that is rotating at 3000 6 30 r/min. The shaft shall be made from carbon steel having a Brinell hardness between 170 and 180 and a surface finish between 15 and 25 root mean square (rms). A force of 3.63 kg 6 45 454 g (8 6 1 lb lb)) sh shal alll be ap appl plie ied d to th thee re resi sist stan ance ce thermometers and thermocouple sensors to ensure contact with the circumference of the shaft during the test. The resistance thermometers and thermocouple sensors shall be oriented so that the axis perpendicular to their sensor tip face shall intersect and be perpendicular to the longitudinal axis of the shaft. Prior to the start of the test, the shaft and the fixture shall be cleaned with a suitable solvent and and wiped dry. dry. A stylus trace of the shaft surface parallel to the axis of the shaft shall be performed at six equally spaced intervals around the circumference of the shaft. No lubrication shall be used between the resistance thermometers and thermocouple sensors and the shaft during the scoring test. The rotating shaft shall remove 2.54 mm 6 254 µm (0.10

S43. Inspection S43.1 Classification of Inspections— The The inspection requirements specified herein are classified as follows: (1) Qualification testing, and (2) Quality conformance testing. S43.2 Qualification Testing: S43.2.1 Sample Size— Unless Unless otherwise specified, two resistance thermometers and thermocouple sensors of each configuration and range shall be subjected to qualification testing. S43.2.2 General Examination and Tests— Qualification Qualification inspecti spe ction on sha shall ll con consis sistt of the gen genera erall exa examin minati ation on and tes tests ts specified in Table S20 in the order listed. Any deviation in the test order shall first be approved by the purchaser. TABLE S20 Qualification Testing Examination and Test

Performance Applicable Conformance Test Requirement Configurations Method Group A Gro Group Group up B

General examination Insulation resistance Accuracy Response time Self heating B Thermal cycling C Over-temperatureC Terminal strength C Connecting wire end closure EnclosureD ,C Salt spray (fog) D ,C Spring loading VibrationC ShockD ,C PressureD ,C Scoring

--S3 S 39.1 S39.2 S39.6 S39.4 S39.5 S39.6 S39.7 S39.8

S43.5 S42.1 S42.2 S42.3 S42.4 S42.5 S42.6 S42.7 S42.8

TW, BB, EM --TW, BB, EM TW, BB, EM TW, BB, EM TW, BB, EM EM T W, EM TW TW, BB

X --XA -------------

----X --X X -------

S39.9 S39.10 S39.11 S39.12 S39.13 S39.14 S39.15

S42.9 S42.10 S42.11 S42.12 S42.13 S42.14 S42.15

TW, T W, W, TW T W, W, T W, W, EM EM

---------------

----X ---------

BB BB, EM BB, EM BB, EM

A

A two point accuracy test at 0°C (32°F) and 100°C (212°F) shall be performed. Performance shall conform to S39.2. B The self heating test shall be performed only on resistance thermometers. C A reference measurement (see S42.2.2) shall be performed prior to and at the conclusion of this test. Performance shall conform to S39.2.2. D An insulation resistance test shall be performed at the conclusion of this test. Performance shall conform to S42.1.

S43.2.3 Acceptance Criteria— The The resistance thermometers and thermocouple sensors shall meet all the requirements of the general examination and tests listed in Table S20. S43.3 Quality Conformance Inspection: S43.3.1 Inspection Lot— An An inspection lot shall consist of all resistance thermometers and thermocouple sensors of the same classification, produced under essentially the same conditions and offered for delivery at the same time. S43.3.2 Gr Grou oup p A Ge Gene nera rall Ex Exam amina inati tion on an and d Tes est— t— Resistance thermometers and thermocouple sensors in each lot shall be subjected to the group A general examination and test specified in Table S20 in the order listed. 30


F2362 − 03 (2013) S43.3.3 Group B General Examination and Test— A sample resistance thermometer and thermocouple shall be randomly selected from each lot of 100 or more units, as appropriate, for thee te th test stss sp spec ecifi ified ed in Tab able le S2 S20. 0. Gr Grou oup p B te test stss sh shal alll be performed in the order listed on resistance thermometers and thermocouple sensors that have passed group A tests. S43.3.4 Acceptance Criteria: S43.3.4.1 Acceptance Criteria for Group A— The resistance thermo the rmomet meters ers and the thermo rmocou couple ple sen sensor sorss sha shall ll mee meett all the requirements of the group A general examination and tests in order ord er to rec receiv eivee gro group up A qua qualit lity y con confor forman mance ce ins inspec pectio tion n approval. S43.3.4.2 Acceptance Criteria for Group B— Selected Selected resistance tan ce the thermo rmomet meters ers and the thermo rmocou couple ple sen sensor sorss sha shall ll hav havee passed pas sed the gro group up A tes tests. ts. If any res resist istanc ancee the thermo rmomet meter er or thermocouple sensor fails in any test, no resistance thermometerr or the ete thermo rmocou couple ple sen sensor sor sha shall ll be acc accept epted ed for qua qualit lity y conformance inspection until the contractor has determined the cause of the defect and has taken the necessary action to correct or eli elimin minate ate the def defect ectss from res resist istanc ancee the thermo rmomet meters ers or thermocouple sensors on hand. The failed test and any other test required shall be repeated to demonstrate that the corrective action will enable the resistance thermometers or thermocouple sensors to conform to the requirements of this specification. S43.4 Test Conditions— Except Except where the follow following ing facto factors rs are variables, the tests in this specification shall be conducted under the following conditions: Calibrat ration ion bat bath h tem temper peratu ature re sha shall ll be plu pluss or min minus us (1) Calib 2.8°C (5°F) from the specified temperature. (2) Resistance thermometer element excitation current shall be 1.0 6 0.1 mA dc. (3) Maximum immersion into the temperature bath shall be as follows: configu figurat ration ion—Im —Immer mersio sion n sha shall ll be to the the therr(a) TW con mowell insertion length minus 1.27 cm (0.5 in.). configu figurat ration ion—Im —Immer mersio sion n sha shall ll be to the “E” (b) BB con dimension minus the thread length 2.23 cm (0.875 in.). configuratio uration—Eac n—Each h resis resistance tance therm thermomete ometerr or (c) EM config thermocoup therm ocouple le sens sensor or shall be place placed d in an indiv individual idual stainless stainless steel tube and packed with fine aluminum oxide powder. The stainless steel tube shall be immersed in the temperature bath fluid to a depth such that further immersion does not produce a chang changee in the equiv equivalent alent indicated indicated temperature temperature of more than twice the temperature bath fluid gradient. (4) Unless otherwise specified, the test shall be performed with a sensor input current of 1 mA. S43.5 General Examination: S43.5.1 Visual Examination— Resistance Resistance thermometers and thermocouple sensors shall be given a thorough examination to determine that they conform to this specification and applicable drawin dra wings gs wit with h res respec pectt to mat materi erial, al, fini finish sh,, wo workm rkmans anship hip,, constr con struct uction, ion, ass assemb embly ly,, dim dimens ension ions, s, wei weight ght,, mar markin king g of identification, and information plates. This examination shall be li limi mite ted d to th thos osee ex exam amin inat atio ions ns th that at ma may y be pe perfo rform rmed ed without disassembling the resistance thermometers and thermocouple mocou ple sensors in such a manne mannerr that their perfo performanc rmance, e, durability, or appearance will be affected.

S43.5.2 R ad ad io io gr gr ap ap hi hi c E xa xa mi mi na na ti ti on on ( TW TW a nd nd B B When required, the radiographic examination Configuration)— When shall sha ll ens ensure ure tha thatt the res resist istanc ancee the thermo rmomet meter er ele elemen ment, t, the thermocouple sensor’s measuring junction, and the connecting wires meet the requirements of S38.2. S43.5.3 Sheath Strai Straightne ghtness ss (TW Confi Configurat guration)— ion)— A plain ring gauge having a 6.53 cm 6 2.54 µm (0.2570 6 0.0001 in.) diameter and a length which is at least the thermowell insertion length len gth sha shall ll be use used d to ver verify ify the she sheath ath str straig aightn htness ess.. The sheath shall pass through the plain ring gauge until it hits the first spring stop. S44. Certification S44.1 When specified specified in the purchase order order or contr contract, act, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and the requirements have been met. When specified in the purchase order or contract, a report of the test result shall be furnished. It is recommended that all test data remain on file for three years at the manufacturer’s facility for review by purchaser upon request. S45. Product Marking S45.1 Produ Product ct marki marking ng requi requiremen rements ts shall be specified in the acquisition requirements. S45.2 Identificat The ide identi ntifica ficatio tion n pla plate te sha shall ll Identification ion Plate— The include at a minimum the following: (1) Nomenclature, (2) Contractor’s part number, (3) National Stock Number (NSN), (4) Contract number, (5) Detailed specification number, (6) Contractor’s name or CAGE code, and (7) Temperature range. S45.3 Sheath Each shea sheath th Sheath (TW and BB Con Configu figurat ration ions)— s)— Each shall be clearly and permanently marked, that is, engraved or electronic elec tronically ally etche etched d with the Comme Commercial rcial and Gover Government nment Entity (CAGE) number, the classification variables as specified in B4, and a model number. S45.4 Metallic metall allic ic tag Metallic Tag (EM Config Configurati uration)— on)— A met shall be placed at the end of the connecting wires opposite the sheath and shall be clearly and permanently marked with the same information as required in S45.3. The following notice shall be placed on the opposite side of the tag: NOTICE Reattach this tag to the connecting wires after bearing installation and keep affixed to the connecting wires when the bearing is placed in service. S45.5 Conn The Connect ecting ing Met Metal al Lin Linkk (TW Con Configu figurat ration ion)— )— The connecting metal links on the connection head terminal board for resis resistance tance thermometers thermometers shall be marke marked d “R” and “W “W,” ,” respectively, for the red and white insulated connecting wires. The connecting metal links on the connection head terminal board for thermocouple sensors shall be marked “Y (+)” and “R(-)” for the yellow and red insulated connecting wires. 31


F2362 − 03 (2013) S46. Pack Packagin aging g and Package Package Mark Marking ing

S45.6 Connector Receptacle (BB Configuration)— The The connector receptacle pins for resistance thermometers with platinum elements shall be marked “B” for the single connecting wire on one side of the resistance thermometer element and shall be marked “A” and “C” for the two connecting wires on either side of the resistance thermometer element. The connector recep receptacle tacle pins for resis resistance tance thermometers thermometers with nicke nickell elements shall be marked “A” and “B” for the two connecting wires on each side of the resistance thermometer element. The connector conne ctor receptacle receptacle pins for therm thermocoup ocouple le sens sensors ors shall be marked “(+)” and “(-)” for the positive and negative connecting wire respectively. S45.7 Conn An Connect ecting ing Hea Head d Plat Platee (TW Con Configu figurat ration ion)— )— An identification plate shall be affixed to the connecting head cap.

S46.1 S46 .1 Pac Packag kaging ing and pac packag kagee mar markin king g sha shall ll be in acc accorordance with Section 15 15.. S47. Quality Assurance Assurance Provisions Provisions S47.1 Warranty— Specia Speciall war warran ranty ty req requir uireme ements nts sha shall ll be specified in the acquisition requirements. Otherwise, the standard commercial warranty applies.

SENSORS, TEMPERATURE, FIBER OPTIC (NAVAL SHIPBOARD USE) The following appendix to supplementary requirements established for U.S. Naval shipboard application shall apply when specified in the contract or purchase order. When there is conflict between the standard (ASTM F2362) and this supplement’s appendix, the requirements of this supplement’s appendix shall take precedence for equipment acquired by this supplement’s appendix. This document supercedes MIL-S24795, Sensors, Temperature, Fiber Optic (Naval Shipboard Use), for new ship construction.

S48. Scop Scopee

ANSI/ISA S37.1 Electr ANSI/ISA Electrical ical Tra Transduc nsducer er Nome Nomenclat nclature ure and 10 Terminology ASME PTC 19.3:1 Thermowells (Power Test Test Codes, Instruments and Apparatus, Part 3, Temperature Measurement) 11 RS-422 Electrical Characteristics of Balanced Voltage Digital Interf Interface ace Circu Circuit it12 S49.2 Government Documents: 13 S49.2.1 Military Standards: MIL-STD-167 MIL-ST D-167-1 -1 Mechanical Mechanical Vibrati ibrations ons of Shipbo Shipboard ard Equipment Equip ment (T (Type ype I—Env I—Environme ironmental ntal and Type II—Int II—Internal ernally ly Excited) MIL-STD-461 MIL-S TD-461 Requireme Requirements nts for Contr Control ol of Electr Electromagomagnetic Interference Interference Chara Characteri cteristics stics of Subsy Subsystems stems and Equipment MIL-STD-2042 Fiber Optic Topology Topology Installation Standard Methods for Naval Ships S49.2.2 Military Specifications: MIL-S-9 MIL -S-901 01 Sho Shock ck Test ests, s, H.I H.I.. (Hi (Highgh-Imp Impact act); ); Shi Shipbo pboard ard Machinery, Equipment Systems, Requirements for MIL-C-5015 MIL-C -5015 Conne Connector ctor,, Elect Electrical, rical, Circular Threa Threaded, ded, AN Type, General Specification for MIL-S-19622 MIL-S -19622 Stuf Stuffi fing ng Tub Tubes, es, Nylon Nylon;; and Packi Packing ng Assemblies; General Specification for MIL-S-19622/1 Stuff Stuffing ing Tubes, Straight, Nylon MIL-SMIL -S-196 19622/ 22/17 17 Stu Stufffing Tu Tube, be, Nyl Nylon, on, Siz Sizee 2: Pac Packin king g Assemblies for MIL-E-2 MIL -E-2414 4142 2 Enclosures Enclosures for Elec Electric trical al Fitt Fitting ingss and Fixtures, General Specification for

S48.1 This suppl supplement ement covers singl single-cha e-channel, nnel, fiber optic temperature sensors designed to meet the requirements for use onboard naval ships. S48.2 This specificatio specification n cover coverss the requirements requirements for singl singleechannel, fiber optic temperature sensors for general applications. The fiber optic temperature sensor usually consists of the sens se nsor or he head ad th that at is in co cont ntac actt wi with th th thee me meas asur ured ed me medi dia, a, embedded in babbitt material, or housed inside a thermowell. Using Us ing con connec nector torize ized d fibe fiberr opt optic ic ca cable ble,, a sep separa arate te opt optooelectronics module translates the optical input to a continuous linear lin ear pro propor portio tional nal ana analog log ele electr ctrica icall sig signal nal or oth other er out output put signal such as optical or digital. S48.3 The U.S. Government Government preferred system system of meas measureurement is the metric SI system. However, since this item was originally designed using inch-pound units of measurement, in the event of conflict between the metric and inch-pound units, the inch-pound units shall take precedence. S49. Referenced Documents S49.1 Commercial Documents: S49.1.1 ASTM Standards:9 B23 Speci Specificati fication on for White Metal Bear Bearing ing Alloys Known Commercially as “Babbitt Metal” B117 B11 7 Test Method for Salt Spray (Fog) Testing Testing D542 Test Method for Index of Refra Refraction ction of Transparent Transparent Organic Plastics D570 Test Method for Water Absorption Absorption of Plast Plastics ics S49.1.2 Other Commercial Documents:

10

Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036. 11 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990. 12 Availabl Av ailablee from Electronic Electronic Indu Industrie striess Allia Alliance nce (EIA) (EIA),, 2500 Wilson Blvd., Arlington, VA 22201. 13 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.

9 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

32


F2362 − 03 (2013) MIL-E-241 MIL-E24142/ 42/3 3 Enc Enclos losure ure for Ele Electr ctrica icall Fit Fittin tings gs and Fixtures, Submersible, Size 6 by 9 (15 Foot) MIL-M-24794 MIL-M -24794 Mater Material, ial, Index Matc Matching, hing, Fiber Optics MIL-F-49291 MIL-F49291 Fiber Fiber,, Optic Optical, al, (Metr (Metric), ic), Gene General ral Spec Specificaification for MIL-C-83522 MIL-C83522 Connectors, Connectors, Fiber Optic Optic,, Single Terminus, Terminus, General Specification for MIL-C-83522/16 Connector, Fiber Optic, Single Terminus, Terminus, Plug, Adapter Style, 2.5 Millimeter Bayonet Coupling, Epoxy MIL-C-83522/17 Connector, Fiber Optic, Single Terminus, Terminus, Adapter Adap ter,, 2.5 Milli Millimeter meter Bayo Bayonet net Coupl Coupling, ing, Bulkh Bulkhead ead Panel Mount MIL-C-83522/18 Connector, Fiber Optic, Single Terminus, Terminus, Adapter, 2.5 Millimeter Bayonet Coupling, PC Mount MIL-C-85045 Cables, Fiber Optic, (Metric), General General Specification for MS3452 MS345 2 Conn Connector ector,, Rece Receptacl ptacle, e, Electr Electric, ic, Box Moun Mounting, ting, Rear Release, Crimp Contact, AN Type with MS3456 MS345 6 Conn Connector ector,, Plug, Electrical, Electrical, Rear Release, Release, Crimp Contact, AN Type

sensor norma sensor normally lly consi consists sts of a senso sensorr head, opto-electron opto-electronics ics module, and connectorized fiber optic cable. S50.2.9 hysteresis— the the dif differ ferenc encee in sen sensor sor out output put whe when n compared at the same temperature under the same environmentall co ta cond ndit itio ions ns wi with th on onee da data ta po poin intt ta take ken n wi with th as asce cend ndin ing g temperature and another with descending temperature. S50.2.10 o pe pe ra ra ti ti ng ng e nv nv ir iro nm nm en en ta ta l c on on di di ti ti on on s— s— environmental conditions during exposure to which a sensor must perform in some specified manner (ANSI/ISA S37.1). S50.2.11 optical— involving involving the use of light sensitive devices to acqui acquire re inform information ation.. S50.2.12 optical fiber— a very thin filament or fiber, made of dielectric materials, that is enclosed by material of lower index of ref refrac ractio tion n and tra transm nsmits its lig light ht thr throug oughou houtt its len length gth by internal reflections. S50.2.13 opto-electronics module— a component of the fiber optic temperature sensor that contains the optical source and detector, and signal conditioner devices necessary to convert the sensed temperature to a specified output signal. S50.2.14 output— electrical electrical or numerical quantity, produced by a sensor or measurement system, that is a function of the applied measurand. S50.2.15 range— measurand measurand values over which a sensor is intended to measure, specified by their upper and lower limits (ANSI/ISA S37.1). S50.2.16 repeatability— abil a bilit ity y of a se sens nsor or to re repr prod oduc ucee output readings when the same measurand value is applied to it consecutively, under the same conditions, and in the same direction (ANSI/ISA S37.1). S50.2.17 response time— the the time required for a sensor to indicate a step change in temperature or the time difference between an actual step change in temperature applied and the corresponding change in sensor output.

S50. Terminology S50.1 Terminology ermss mar marked ked wit with h (AN (ANSI/ SI/ Terminology Defined— Term ISA S37.1) are taken directly from ANSI/ISA S37.1 (R-1982) and are included for the convenience of the reader. S50.2 Definitions— Terminology Terminology consistent with ANSI/ISA S37.1 shall apply, except as modified by the definitions listed as follows: S50.2.1 ambient condi condition ionss suc such h as pre press ssure ure conditions tions— — condit and temperat temperature ure of the medium medium sur surrou roundi nding ng the case of a sensor (ANSI/ISA S37.1). S50.2.2 babbitt— metal metal material commonly used in bearing and tem temper peratu ature re sen sensor sor ins instal tallat lation ionss whi which ch wea wears rs in wit with h equipment operation providing a wear surface and heat transfer medium. Babbitt is softer than the base or substrate material and softer than mating component materials, where applicable. S50.2.3 bare-bulb sensor head design bare-bulb type sens sensor or head— sensor where the sensing element is exposed directly to the process fluid being measured. S50.2.4 calibration— test test dur during ing whi which ch kno known wn val values ues of measurands are applied to the sensor and corresponding output readings readi ngs are recor recorded ded under specific condi conditions tions (ANSI/ISA S37.1). S50.2.5 embedded sensor head design embedded type sens sensor or head— sensor which whi ch is emb embedd edded ed in bab babbit bittt mat materi erial al whi which ch iso isolat lates es the sensor element from the process fluid and, in some instances, moving or rotating components, but still allows the temperature to be monitored. S50.2.6 environmental specified exter external nal conenvironmental conditions— specified ditions such as shock, vibration and temperature to which a sensor may be exposed during shipping, storage, handling, and operation (ANSI/ISA S37.1). S50.2.7 error— algebraic algebraic dif differen ference ce betwe between en the indic indicated ated value and the true value of the measurand (ANSI/ISA S37.1). S50.2.8 fiber optic temperature sensor— a device that converts sensed sensed tempe temperatur raturee to a propo proportiona rtionall outpu outputt signa signall via changes in fiber optic properties. The fiber optic temperature

S50.2.18 sensitivity factor— the the ratio of fiber optic temperature sensor output signal percentage change of span to applied bath temperature percentage change of span. S50.2.19 sensor eleme that part of the sensor that reelement— nt— that sponds directly to the measurand (ANSI/ISA S37.1). S50.2.20 sensor head— the the transduction element of a fiber optic temperature sensor that detects temperature via changes in optical properties. S50.2.21 sheath— the the protective covering of a sensor element. S50.2.22 SI (Le Sys System temee Int Intern ernati ationa onall d’U d’Unit nites) es) uni units— ts— units uni ts of mea measur sureme ement nt rec recogn ognize ized d by the CIP CIPM M (Co (Comit mite’ e’ Internation Inter national al des Poids et Mesu Mesures). res). S50.2.23 signal a n ele electr ctroni onicc dev device ice tha thatt signal cond condition itioner— er— an makes the output signal from a transduction element compatible with a readout system. S50.2.24 span— the the algebraic difference between the limits of the measurement range. S50.2.25 static error band— the the maximum deviation deviation from a straight line drawn through the coordinates of the lower range limit at specified sensor output and the upper range limit at specified output expressed in percentage of sensor span. 33


F2362 − 03 (2013) S52. Ordering Information Information

S50.2.26 thermowell— a pressure tight receptacle adapted to receive a temperature sensing element and provided with the external threads or other means for pressure tight attachment to the vessel. S50.2.27 thermowell type sensor head— sensor sensor head design which is intended to be used with a thermowell which isolates the sensor element from the process fluid being measured while maintaining the pressure boundary. S50.2.28 warm-up time— the the time required for a sensor to operate within specified requirements after being re-energized from a cold (ambient) state.

S52.1 The purchaser shall provide provide the manufacturer with all of the per pertin tinent ent app applic licati ation on dat dataa sho shown wn in acc accord ordanc ancee wit with h S52.2. If special application operating conditions exist that are not shown in the acquisition requirements, they shall also be described. S52.1 Acquisition Acquisition docume documents nts Acquisition Requir Requirements ements— — Acquisition should shoul d speci specify fy the follo following: wing: (1) Title, number, and date of this specification, (2) Quantity of fiber optic temperature sensors required, (3) Fiber optic temperature sensor classification required: (a) Sensor type, (b) Input power, (c) Opto-electronics module, (d) Signal output, and (e) Range. (4) When qualification inspection is required, (5) Final disposition of qualification test samples, (6) National Stock Number (NSN) if available, (7) Unique product marking requirements, and Unique prese preservati rvation, on, packa packaging ging and markin marking g requi requirere(8) Unique ments.

S51. Classification S51.1 Design The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor Design Type— The shall consist of a series of designations which shall be assigned and listed in the format below. Example: ASTM F2362S48-T4-DC-A-VC-2 Specification

Type

Input Power

F2362S48

T4 S51.2

DC S51.3

OptoElectronics Module A S51.4

Signal Output

Range

VC S51.5

2 S51.6

S51.2 Type— The The sensor head type shall be designated as follows: T1—Thermowell (see Fig. (see Fig. S8.0 and S8.0 and Fig. S9.0) S9.0) T2—Thermowell (see Fig. (see Fig. S8.0 and S8.0 and Fig. S9.0) S9.0) T3—Thermowell (see Fig. (see Fig. S8.0 and S8.0 and Fig. S9.0) S9.0) T4—Thermowell (see Fig. (see Fig. S8.0 and S8.0 and Fig. S9.0) S9.0) EM—Embedded (Bearing Applications, see Fig. S8.0 and Fig. S10.0) S10.0) B1—Bare-bulb (see Fig. (see Fig. S11.0) S11.0) B2—Bare-bulb (see Fig. (see Fig. S11.0) S11.0) S51.3 Input Power The inp input ut pow power er req requir uired ed to ope operat ratee Power— — The the opto-electronics module shall be designated as follows: DC—28 V direct current (Vdc) AC—115 V alternating current (Vac) S51.4 Opto-electronics Module— The The opto-electronics module type shall be designated as follows: A—Junction box enclosure B—Control console module C—Monitoring and alarm panel module S51.5 Signal Output— The The signal output shall be designated as follows: A—4 to 20 mA dc VA—0 to 5 Vdc VB—0 to 10 Vdc VC—0 to 12 Vdc VS—Specified O—Digital optical output E—Digital electrical output S51.6 Range— The The sensor measurement measurement range shall be designated ignat ed as follow follows: s: 1: -40 to 150°C (-40 to 302°F) 2: 0 to 300°C (32 to 572°F) 3: -40 to 300°C (-40 to 572°F)

S53. Materials and Manufacture Manufacture S53.1 Sensing Elements— The The materials for all wetted parts shall be selected for long term compatibility with the process medium. For example, corrosion resistant steel or monel are compatible with long term exposure to seawater. S53.2 Metals— Unless Unless otherwise specified herein, all metals used us ed in th thee co cons nstr truc ucti tion on of th thee se sens nsor or sh shal alll be co corr rros osio ion n resistant. resis tant. Dissimilar Dissimilar metals shall not be used in close physical physical contac con tactt wit with h eac each h oth other er unl unless ess sui suitab tably ly fini finishe shed d to pre preven ventt electrolytic corrosion. Materials used to fabricate the sensor head hea d for the emb embedd edded ed con configu figurat ration ion sha shall ll hav havee a Bri Brinel nelll hardness less than 170 to ensure that shaft scoring does not occur. S53.3 Flammable Materials als used in the con con-Flammable Mater Materials— ials— Materi struct str uction ion of the sensor sensor sha shall, ll, in the end configura configuratio tion, n, be noncombustible or fire retardant in the most hazardous conditions of atmosphere, pressure and temperature to be expected in th thee ap appl plic icat atio ion. n. Fi Fire re re reta tard rdan antt ad addi diti tive vess ma may y be us used ed provided they do not adversely affect the specified performance requirements of the basic materials. Fire retardance shall not be achi ac hiev eved ed by us usee of no nonp nper erma mane nent nt ad addi diti tive vess to th thee ba basi sicc material. S53.4 Fungus Resis Materials als use used d in the Resistant tant Mater Materials— ials— Materi construction of the sensor shall be fungus inert materials. S53.5 Solvent I f an any y Solvents, s, Adhes Adhesives ives,, and Clean Cleaning ing Agent Agents— s— If chem ch emic ical alss or ce ceme ments nts ar aree us used ed in bo bond ndin ing g of in inte tern rnal al components, no degradation shall result during in-service use. S53.6 Ref Refra ract ctiv ivee Ind Index ex Mat Match chin ing g Ge Gels ls,, Flu Fluids ids,, or Refractive index matching gels, fluids, or comCompounds— Refractive pounds shall be in accordance with MIL-M-24794 and shall not pro produc ducee tox toxic, ic, cor corros rosive ive,, or exp explos losive ive byp byprod roduct ucts. s. The materi mat erial al is sub subjec jectt to a tox toxico icolog logica icall dat dataa and for formul mulati ations ons review and inspection, for safety of material, by the purchaser. The index matching material shall be either silicone or aliphatic hydrocarbon material and shall be clear and transparent. 34


F2362 − 03 (2013)

FIG. S8.0 Thermowell Type Sensor Head Assembly

The index matching material shall have an index of refraction of 1.46 6 0.01 as tested in accordance with Test Method D542 when whe n exp expose osed d to ope operat rating ing tem temper peratu ature re ext extrem remes es bet betwee ween n -28°C -28 °C and +85 +85°C °C (-1 (-18.4 8.4 and 185 185ºF) ºF).. The ind index ex mat matchi ching ng materi mat erial al sha shall ll not flow at ele elevat vated ed tem temper peratu atures res.. The ind index ex

matching matchi ng mat materi erial al sha shall ll rem remain ain cle clear ar and tra transp nspare arent nt whe when n tested teste d for wate waterr absor absorption ption in acco accordanc rdancee with Test Test Meth Method od D570. The index matching material shall have a shelf life not less than 36 months at 25 6 5°C (77 6 9°F). The 36 month period commences on the date of adhesive manufacture. 35


F2362 − 03 (2013)

FIG. S9.0 Sensor Head Sheath Construction

FIG. S10.0 Embedded Type Sensor Head Assembly

FIG. S11.0 Bare-bulb Type Sensor Head Assembly

S54. Physical Properties Properties

properties. Neither electrical nor electronic components shall be used in the construction of the sensor head. S54.1.1 Thermowell Type— The The sensor head shall be constructed in accordance with Fig. with Fig. S8.0 and S8.0 and Fig. Fig. S9.0. S9.0. The sensor head dimensions shall be in accordance with Fig. with Fig. S8.0 and S8.0 and Fig. Fig. S9.0.. The sensor head shall have a weight not greater than 1 kg. S9.0 S54.1.2 Embedded Type— The T he se sens nsor or he head ad sh shal alll be co connstruct str ucted ed in acc accord ordanc ancee wit with h the dim dimens ension ionss sho shown wn in Fig. S10.0.. The babbitt topping material shall be in accordance with S10.0 Specification B23 (grade 2). S54.1.3 Bare-bulb Type— The The bar bare-b e-bulb ulb typ typee sen sensor sor hea head d dimensions shall be in accordance with Fig. S11.0. S11.0. The sensor head shall have a weight not greater than 1 kg (2.2 lb). The

Fiber optic temperature sensors convert the thermal energy surrounding the sensor head to a continuous linear analog dc signal or specified digital output throughout a specified measureme sur ement nt ran range. ge. The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor sha shall ll consist cons ist of a sens sensor or head, opto-electro opto-electronics nics module, and fiber optic cable interconnect. All parts of the fiber optic temperature sensor shall be interchangeable with the appropriate replacement parts with respect to form, fit, and function, and maintain the specified accuracy requirements. S54.1 Sensor Head— The The sensor head shall detect the surroundi rou nding ng tem temper peratu ature. re. The sen sensor sor hea head d sha shall ll be pas passiv sivee in nature by detection of temperature through a change in optical 36


F2362 − 03 (2013) sensor she sensor sheath ath sha shall ll be des design igned ed to wit withst hstand and app applic licati ation on conditions of 37.66 Mpa (5500 pounds per square inch), 210°C (410°F), and an open air flow velocity of 12.2 m (40 ft) per second. Conformance shall be proven by using a mathematical model approved by the Power Test Code Thermometer Wells, ASME PTC 19.3:1. S54.2 Opto-electronics Module: S54.2.1 Jun T he op opto to-Juncti ction on Box Enc Enclos losur uree (T (Type ype A)— The electronics shall be housed in a junction box. MIL-E-24142 and MIL-E-24142/3 may be used as guidance for the junction box. At a minimum, the dimensions, mounting requirements, and cable entrance shall be in accordance with MIL-E-24142 and MIL-E-24142/3. The opto-electronics module shall have a weight no greater than 4.5 kg (9.92 lb). S54.2.2 Cont T he op optotoContrrol Co Cons nsole ole Mod Module ule (T (Typ ypee B)— The elec el ectro troni nics cs sh shal alll be pa pack ckag aged ed in a ci circ rcui uitt ca card rd wh whic ich h is a modula mod ularr sub subass assemb embly ly of a con contro troll con consol sole. e. Des Design ign and tes testt requir req uireme ements nts for the opt opto-e o-elec lectro tronic nicss mod module ule sha shall ll be as specified in the acquisition requirements. S54.2.3 Monitoring Monitoring and Alarm Panel Modul Modulee (T (Type ype C)— The opto-electronics shall be packaged in a module which is a subassembly of a bulkhead mounted temperature monitoring and alarm panel. Design and test requirements for the optoelectr ele ctroni onics cs mod module ule sha shall ll be as spe specifi cified ed in the acq acquis uisiti ition on requirements. S54.3 Fiber Optic Cable: S54.3.1 Ther The Thermow mowell ell and Bar Bare-bu e-bulb lb Sens Sensor or Types ypes— — The cable used to interface the sensor head and the opto-electronics module shall have an outer diameter of a four fiber cable in accordance with MIL-C 85045. In the cable, there shall be no less than two times the number of fibers required for operation of the sensor. The cable shall be supplied with a stuffing tube (size (si ze 2, mil milita itary ry par partt num number ber M19 M19622 622/1/1-002 002 in acc accord ordanc ancee with MIL-S-19662/1), MIL-S-19662/1), and packi packing ng asse assembly mbly (military part numberr M1962 numbe M19622-17-0 2-17-0001 001 in acco accordanc rdancee with MIL-SMIL-S-19662 19662/ / 17) in accordance with MIL-S-19622, and an o-ring installed on each end of the cable to accomplish watertight penetration into the sensor head and opto-electronic module. The o-rings used shall be petroleum hydraulic fluid resistant and shall be rated rat ed to per perfor form m in hig high h tem temper peratu ature re app applic licati ations ons 135 135°C °C (275°F). (275° F). Expos Exposed ed singl singlee fiber optical fiber cable compo component nent shall not be used over distances greater than one meter. The cable length shall be as specified in the acquisition requirements. S54.3.2 Embedded Sensor Type— The The cable used to interface the sensor head and a local interconnection box shall be in accordance with MIL-C-85045. The cable length shall be as specified in the acquisition requirements. S54.3.3 Optical Fiber— Optical Optical fiber used to transmit light between the opto-electronics module and the sensor head shall be in accordance with MIL-F-49291. S54.3.4 Fiber Fiber Opt Optic ic Con Connec nector tors, s, Rec Recept eptacl acles, es, and Bul BulkkAll fiber optic connectors, connectors, receptacles, receptacles, and head Adapte Adapters— rs— All bulkhead adapters shall be in accordance with MIL-C-83522 and MIL-C-83522/16,17,and 18, respectively. The fiber optic cable for the thermowell sensor type shall be terminated at both ends with connectors. The fiber optic cable for the embedded and bare-bulb sensor configurations shall be terminated with a

connector at the end which interfaces connector interfaces with the opto-electronic opto-electronic module. MIL-STD-2042 method 5B1 may be used as guidance. The connectors and receptacles shall be mounted inside the sensor head (thermowell sensor type only) and the optoelectronic module. S54.3.5 Electr Nominal steady steady-state -state Electrica icall Inpu Inputt Pow Power— er— Nominal power supply requirements for ac shall be 115 6 8 Vac, 60 Hertz,, singl Hertz singlee phas phase. e. Nomin Nominal al stead steady-sta y-state te power supply requirements for dc shall be 28 6 4.5 Vdc. The sensor shall operate with power supply variations as specified (see S58.8.1 through S58.8.6). S54.3.6 Output Signal: S54.3.6.1 Curr W hen a cu curr rren entt ou outp tput ut is Current ent Output— When required, requi red, the outpu outputt signa signall shall be direc directly tly proportional proportional to the temper tem peratu ature re bei being ng mea measur sured. ed. The 4 mA output sha shall ll cor correrespond to the lower temperature range value and the 20 mA output shall correspond to the upper temperature range value. The current output shall remain accurate regardless of external load resistance variations over a range of 0 to 250 Ω. S54.3.6.2 Voltage W hen a vo volt ltag agee ou outp tput ut is Voltage Output— When required, requi red, the outpu outputt signa signall shall be direc directly tly proportional proportional to the temperature being measured. The lower dc voltage output shall correspond to the lower temperature range value and the higher dc voltage output shall correspond to the upper temperature range value. The voltage output shall remain accurate regardless of external load resistance greater than 1000 Ω. Typical voltage outputs include 0-5 Vdc, 0-10 Vdc and 0-12 Vdc. S54.3.6.3 Digital Optic When a dig digita itall opt optica icall Optical al Outpu Output— t— When output out put is req requir uired, ed, the out output put sig signal nal spe specifi cificat cation ionss sha shall ll be specified in the acquisition requirements. S54.3.6.4 Digital Electrical Output— When When a digital electrical output is requi required, red, the elect electrical rical characterist characteristics ics shall be those specified in EIA standards RS-422 for balanced voltage digita dig itall int interf erface ace cir circui cuitry try or as spe specifi cified ed in the acq acquis uisiti ition on requirements. The data format shall also be specified in the acquisition requirements. S54.3.7 Electrical electrical trical recepElectrical Connectors— A single elec tacle in accordance with MIL-C-5015 shall be used to interface with wit h the input power and lin linear ear output output sig signal nal to the optoelectronics module. When a digital optical or digital electrical output signal is specified, connectors shall be as specified in the acquisition requirements. The appropriate connector assembly and an d pi pin n de desi sign gnat atio ions ns fo forr ea each ch of th thee po poss ssib ible le fib fiber er op opti ticc temperature configurations shall be as specified as follows. S54.3.7.1 DC Input Power— The The receptacle mounted to the opto-electronics module shall be classification MS3452W14S5PX in accordance with MS3452. Receptacle pin “A” shall be positive 28Vdc input power, pin “B” shall be negative 28Vdc input power, pin “C” shall be the case ground, pin “D” shall be positive posit ive mA or high Vdc output signal, signal, and pin “E” shall be the nega ne gati tive ve mA or lo low w Vd Vdcc ou outp tput ut si sign gnal al.. Th Thee ma mati ting ng pl plug ug supp su ppli lied ed wi with th th thee fib fiber er op opti ticc te temp mper erat atur uree se sens nsor or sh shal alll be classification MS3456W14S-5SX in accordance with MS3456. S54.3.7.2 AC Input Power— The The receptacle mounted to the opto-electronics module shall be classification MS3452W14S5PX in accordance with MS3452. Receptacle pin “A” shall be positive 115 Vac input power, pin “B” shall be input power return ret urn,, pin “C” shall be the case ground, ground, pin “D” shall shall be 37


F2362 − 03 (2013) positive mA or high Vdc output signal, positive signal, and pin “E” shall be the nega ne gati tive ve mA or lo low w Vd Vdcc ou outp tput ut si sign gnal al.. Th Thee ma mati ting ng pl plug ug supp su ppli lied ed wi with th th thee fib fiber er op opti ticc te temp mper erat atur uree se sens nsor or sh shal alll be classification MS3456W14S-5SX in accordance with MS3456. S54.3.8 Adjustments— A means may be provided for adjusting in g th thee ou outp tput ut si sign gnal al of th thee op opto to-e -ele lect ctro roni nics cs mo modu dule le fo forr calibr cal ibrati ation on pur purpos poses. es. If pro provid vided, ed, the adj adjust ustmen ments ts sha shall ll be situated in the opto-electronics module so that calibrations can be performed with the fiber optic temperature sensor energized. S54.3.9 Fuses— The The opto-electronic opto-electronicss modul modulee shall not be fused.

S55.14 Enclosure— The The fiber optic temperature sensor output sig signal nal acc accura uracy cy sha shall ll be wit within hin 61 % of spa pan n af afte terr exposure to a coarse stream of water (see S58.14). S55.15 Salt Spray— No No corrosion or other damage shall be evid ev iden entt wh when en ex expo pose sed d to sa salt lt sp spra ray y an and d th thee fib fiber er op opti ticc temperature sensor output signal accuracy shall be within 61 % of span (see S58.15). S55.16 Over-temperature— The The sensor head shall show no evidence of physical damage when exposed to the limits of over-temp over -temperatu erature re and the refere reference nce measu measuremen rementt resul results ts shall conform to S55.3 (see S58.16). S55.17 Accelerated Life— The The sensor head shall show no eviden evi dence ce of phy physic sical al dam damage age whe when n exp expose osed d to ope operat rating ing conditions which simulate accelerated life and the reference measurement results shall conform to S55.3 (see S58.17). S55.18 Vibration— The The fiber optic temperature sensor shall operate without interruption and show no evidence of physical damage when exposed to vibration in accordance with MILSTD-167-1. The reference measurement results shall conform to S55.3 (see S58.18). S55.19 Shock— The The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor sha shall ll operate without interruption and show no evidence of physical damage when exposed to shock in accordance with MIL-S901. The reference measurement results shall conform to S55.3 (see S58.19). S55.20 Electromagn Electromagnetic etic Inter Interfer ference ence (EMI) Emiss Emission ion and The fiber optic temperature sensor shall be in Susceptibility— The accordance with the requirements of MIL-STD-461 revision E, or later: CE101 (Submarine application only), CE102, CS101, CS1 CS 114 14,, CS CS1 116 16,, RE RE10 101, 1, RE RE10 102, 2, RS RS10 101, 1, an and d RS RS10 103 3 (s (see ee S58.20). S55.21 Pressure— The The fiber optic temperature sensor shall operate without interruption when exposed to a babbitt surface pressure of 12.4 MPa (1800 psi). The reference measurement shall conform to S55.3 (see S58.21).

S55. Performance Requiremen Requirements ts S55.1 Accuracy— The The fiber optic temperature temperature sensor output signal accuracy shall be within 61 % of span (see S58.1). S55.2 Repeatability— The The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor output signal repeatability at each temperature point shall not change in value more than 0.5 % of span (see S58.2). S55.3 Reference Measurement— The The fiber optic temperature sensor output signal accuracy shall be within 61 % of span (see S58.3). S55.4 Sensitivity Factor— The The ratio of the fiber optic temperatu per ature re sen sensor sor out output put sig signal nal per percen centag tagee cha change nge of spa span n to applied bath temperature percentage change of span shall not be less than 0.75 nor greater than 1.25 (see S58.4). S55.5 Response R espon onse se ti time me of th thee fib fiber er op opti ticc Response Ti Time— me— Resp temperature sensor output signal accuracy shall be not greater than 8 s for the thermowell thermowell sensor type, not greater than 5 s for the embedded sensor type, and not greater than 15 s for the bare-bulb sensor type (see S58.5). S55.6 Warm-up The fiber optic temperature temperature sensor Warm-up Time— The output signal accuracy at the bath temperature shall be within 61 % of span within 1 min after the sensor is energized (see S58.6). S55.7 Steady-state Supply Voltage and Frequency (AC) or The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor Supplyy Voltage (DC)— The Suppl output out put sig signal nal sha shall ll be wit within hin 61 % of span throughout the limits of supply voltage and frequency (see S58.7). S55.8 Transi Transient ent Voltag oltagee and Fre Frequenc quencyy (AC) or Voltag oltagee The fiber optic temperature sensor output signal accu(DC)— The racy shall be withi within n 6 1 % of span when subjected to transient voltage and frequency (see S58.8). S55.9 Insulation Resistance— The The insul insulation ation resistance resistance of the fiber optic temperature sensor between circuits and between circuits and ground shall not be less than 10 megohms (see S58.9). S55.10 Power Inter The fibe fiberr opt optic ic tem temper peratu ature re Interrupti ruption— on— The sensor output signal accuracy shall be 61 % of span during short duration power interr interruptio uptions ns (see S58.10). S55.11 Short Circuit— The The fiber optic tempe temperature rature sensor output signal accuracy shall be within 6 1 % of span after short circuit of the output signal lines (see S58.11). S55.12 Line Voltage Reversal The fiber optic temReversal (DC)— The perature sensor output signal accuracy shall be within 6 1 % of span after reversal of the input dc power lines (see S58.12). S55.13 Temperature— The The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor output signal accuracy shall be within 61 % of span over the ambient temperature range of 0 to 65°C (32 to 149°F) (see S58.13).

S56. Workmanship orkmanship,, Finish, and Appearance S56.1 Cleaning and Surface Finishes— Surfaces Surfaces of castings, forgings, molded parts, stampings, machined and welded parts shall be free of defec defects ts such as crack cracks, s, poros porosity ity,, under undercuts, cuts, voids and gaps as well as sand, dirt, fins, sharp edges, scale, flux,, and oth flux other er har harmfu mfull or ext extran raneou eouss mat materi erials als.. Ext Extern ernal al surfaces shall be smooth and edges shall be either rounded or beveled. There shall be no burn-through. There shall be no warpag war pagee or dim dimens ension ional al cha change nge due to hea heatt fro from m wel weldin ding g operation. There shall be no damage to adjacent parts resulting from welding. S57. Numb Number er of Tests and Retests S57.1 S57. 1 Th Thee nu numb mber er of te test stss an and d re rete test sts, s, if an any y, sh shal alll be specified in the acquisition requirements. S58. Test Methods S58.1 Accuracy— The The sensitive portion of the sensor head shall be immersed in a temperature bath and the fiber optic temperature sensor output signal shall be measured at 5, 25, 50, 75 an and d 95 % of th thee fib fiber er op opti ticc te temp mper erat atur uree se sens nsor or sp span an.. Accuracy shall conform to S55.1. 38


F2362 − 03 (2013) S58.2 Repeatability— The The procedure specified in S58.1 shall be repeated three successive times while maintaining temperature bath conditions. The fiber optic temperature sensor head shall be removed from the bath for not less than 2 min and re-immerse re-im mersed d at a repea repeatable table depth for conse consecutive cutive measuremeasurements at each of the five temperature points. The fiber optic temperature sensor output signal shall conform to S55.2. S58.3 Reference Measurement— The The sensitive portion of the sensor head shall be immersed in a temperature bath and the fiber optic temperature temperature sens sensor or output signal shall be measu measured red at 5, 50, and 95 % of the fiber optic temperature sensor span. System accuracy shall conform to S55.1. S58.4 Sensitivity The sen sensit sitivi ivity ty fac factor tor sha shall ll be Sensitivity Facto Factor— r— The determined using the following procedure. Immerse the sensitive portion of the sensor head in a temperature bath and allow ample time to stabilize at a temperature of 80 6 5 % of span. Measure both the bath temperature and the fiber optic temperature sensor output signal. Increase the bath temperature by an amount amo unt not gre greate aterr tha than n 1 % of the fiber opt optic ic tem temper peratu ature re sensor span. Measure both the new bath temperature and the fiberr opt fibe optic ic tem temper peratu ature re sen sensor sor out put sig signal nal.. Cal Calcul culate ate the change in both bath temperature and fiber optic temperature sensor output signal as a percentage of the fiber optic temperaturee sen tur sensor sor span. Determin Determinee the ratio of the output output sig signal nal percen per centag tagee cha change nge to app applie lied d bat bath h tem temper peratu ature re per percen centag tagee change in terms of fiber optic temperature sensor span. Repeat this procedure for a bath temperature decrease not greater than 1 % of span. Performance shall conform to S55.4. S58.5 Response T he re resp spon onse se of th thee fib fiber er op opti ticc Response Ti Time— me— The temperature tempe rature sensor shall be deter determined mined using the follow following ing procedure: (1) Bath medium: water (2) Origin bath temperature: 10°C (50°F) (3) Destination bath temperature: 82°C (180°F) (4) Initial temperature (T1): 26°C (79°F) (5) Final temperature (T2): 62°C (144°F) The response time shall be determined as the time required for the fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor out output put sig signal nal to tra track ck from T1 to T2 after the sensor head in transferred from the origin bath to the destination bath. The response time of the fiber optic temperature sensor shall be the average of not less than six readings taken during not less than six consecutive trials. Performance shall conform to S55.5. S58.6 Warm-up Time— Warm-up Warm-up time shall be determined using the following procedure. Allow the sensitive portion of the sensor head to stabilize at a bath temperature of 80 6 5 % of the fiber optic temperature sensor span. De-energize the fiber optic temperature sensor for no less than 2 h. Energize the fiber optic opt ic tem temper peratu ature re sen sensor sor and mon monito itorr the out output put sig signal nal as necessary to ensure conformance to S55.6. S58.7 Steady-state Supply Voltage and Frequency (AC) or The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor Supplyy Voltage (DC)— The Suppl output signal shall be monitored for no less than 15 min at normal nor mal,, max maximu imum, m, and min minimu imum m ste steady ady-st -state ate vol voltag tagee and freque fre quency ncy con condit dition ionss as spe specifi cified ed in S58 S58.8. .8. The fibe fiberr opt optic ic temperature sensor shall be subjected to each of the applicable powe po werr su supp pply ly co cond ndit itio ions ns fo forr no le less ss th than an 1 h at am ambi bien entt temperatures of 0, 25, and 65°C (32, 77, and 149°F). The fiber

optic temperature sensor signal output shall be measured after nott le no less ss than 1 h at ea each ch test condit conditio ion. n. This test may be perfo pe rform rmed ed in co conj njun unct ctio ion n wi with th th thee te temp mper erat atur uree te test st (s (see ee S58.13). Performance shall conform to S55.7. S58.8 Trans Transien ientt Sup Supply ply Volt oltage age and Fr Frequ equenc encyy (AC (AC)) or The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor Supplyy Voltage (DC)— The Suppl output signal shall be monitored at ambient temperature during each test procedure defined below. Performance shall conform to S55.8. S58.8.1 Transie With the fiber Transient nt Voltage Voltage Upper Limit (AC)— ( AC)— With optic temperature sensor operating at a voltage of 123 Vac, the voltage shall be increased to 138 Vac, and then decreased back to the steady-state voltage of 123 Vac in a 2 s period. S58.8.2 Transie With the fiber Transient nt Voltage Voltage Lower Limit (AC)— ( AC)— With optic temperature sensor operating at a voltage of 107 Vac, the voltage shall be decreased to 92 Vac, and then increased back to the steady-state voltage of 107 Vac in a 2 s period. S58.8.3 Transient Frequency Upper Limit (AC)— With With the fiber optic temperature sensor operating at a frequency of 62 Hz, the fre freque quency ncy shall be inc increa reased sed to 63. 63.5 5 Hz, and the then n decreased back to the steady-state frequency of 62 Hz in a 2 s period. S58.8.4 Transi Transient ent fr frequen equency cy lowe lowerr limit (AC)— With the fiber optic temperature sensor operating at a frequency of 58 Hz, the fre freque quency ncy shall shall be decrease decreased d to 56. 56.5 5 Hz, and the then n increased back to the steady-state frequency of 58 Hz in a 2 s period. S58.8.5 Tran Transie sient nt Volt oltage age Upp Upper er Lim Limit it (DC (DC)— )— With the fiber optic temperature sensor operating at a voltage of 32.5 Vdc,, the voltage Vdc voltage sha shall ll be inc increa reased sed to 34. 34.5 5 Vdc Vdc,, and then decreased back to the steady-state voltage of 32.5 Vdc in a 2 s period. S58.8.6 Tran With the Transie sient nt Volt oltage age Low Lower er Lim Limit it (DC (DC)— )— With fiber optic temperature sensor operating at a voltage of 23.5 Vdc,, the voltage Vdc voltage sha shall ll be dec decrea reased sed to 21. 21.5 5 Vdc Vdc,, and then increased back to the steady-state voltage of 23.5 Vdc in a 2 s period. S58.9 Insulation Resistance— The The insul insulation ation resistance resistance of the opto-electronic opto-electronicss modul modulee circu circuits its shall be deter determined mined by applying 50 Vdc between electrical input and output circuits and bet betwee ween n the these se cir circui cuits ts and the gro ground und.. The ins insula ulatio tion n resistance measurement shall be made immediately after a 2 min per period iod of uni uninte nterru rrupte pted d tes testt vol voltag tagee app applic licati ation. on. If the indication of insulation resistance meets the specified limit (see S55.9) and is steady or increasing, the test may be terminated before the end of the 2 min period. Performance shall conform to S55.9. S58.10 Power Inter The fibe fiberr opt optic ic tem temper peratu ature re Interrupti ruption— on— The sensor shall be energized and the output signal monitored at ambient temperature throughout the test. The external power supply shall be suddenly interrupted, and after an interval not less than 4 s, the power supply shall be reapplied to the fiber optic opt ic tem temper peratu ature re se senso nsorr. Per Perfor forman mance ce sha shall ll co confo nform rm to S55.10. S58.11 Short Circuit— The The fiber optic temperature temperature sensor shall be de-energized and the positive and negative electrical output terminals of opto-electronics module shall be connected direct dir ectly ly tog togeth ether er,, wit with h no loa load d res resist istanc ance. e. The fibe fiberr opt optic ic 39


F2362 − 03 (2013) temperature sensor shall be energized for 5 min, then deenergized and the short circuit removed. The fiber optic temperature sensor shall be energized and the output signal measured at ambient temperature. Performance shall conform to S55.11. S58.12 Line Voltage Reversal (DC)— The The positive 28 Vdc power pow er inp input ut sha shall ll be app applie lied d to con connec nector tor pin “B” and the reference shall be applied to connector pin “A.” The power supply shall be energized for a period of no less than 10 min. The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor out output put sig signal nal sha shall ll be measured meas ured at ambie ambient nt tempe temperature rature.. The fiber optic tempe temperature rature sensor shall be de-energized and the power supply connections shall be reversed to normal polarity. The fiber optic temperature sensor shall then be energized for no less than 5 min before the output signal is measured at ambient temperature. Performance shall conform to S55.12. S58.13 Temperature— The The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor shall be positioned in an environmental chamber in an energized state, and shall be subjected to the following conditions consecutively: (1) Hold temperature at 0 6 2°C (32 6 3.6°F) for 24 h, Increase se temperature temperature in steps of 10°C (18°F) (18°F) at 30 min (2) Increa per step until 65 6 2°C (149 6 3.6°F) is achieved, (3) Hold temperature at 65 6 2°C (149 6 3.6°F) for 24 h, and (4) Reduce temperature in steps of 10°C (18°F) at 30 min per step until 25 6 2°C (77 6 3.6°F) is achieved. Measure the fiber optic temperature sensor output signal at one point during the last hour of operation at each temperature plateau, that is 0, 25, and 65°C (32, 77, and 149°F). Performance shall conform to S55.13. S58.14 Enclosure— The The fiber optic temperature sensor head and no less than a two meter section of the attached cable interconnect shall be mounted to a surface which extends no less than 1 m (3.28 ft) beyond the sensor head on all sides so that splashing splashing shall be produced by direc directing ting the wate waterr strea stream m on tha thatt sur surfac face. e. The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor sha shall ll be de-energized throughout the test. The water stream shall be a coarse spray with a flow rate of no less than 57 L (15 gal) per second seco nd and a head pressure pressure of no less than 3 m (9.84 ft). A head pressure of 3 m (9.84 ft) is defined as sufficient water pressure so that if directed straight up, the stream of water shall rise to a height of no less than 3 m (9.84 ft). The distance from the nozzle to the enclosure under test shall be approximately 2 m (6.56 ft). The time of the test shall be no less than 5 min with approximately equal portions of time for spray on each surface, including joints of the enclosure and at the surface at which the enclosed equipment is mounted. The fiber optic temperature sensor components shall be examined at the immediate conclusio clu sion n of the test for moi moistu sture re pen penetr etrati ation. on. The fibe fiberr opt optic ic temperature tempe rature sensor shall be ener energized gized and the output signa signall monitored at ambient temperature at the conclusion the test. Performance shall conform to S55.14. S58.15 Salt Spray (Fog)— The The fiber optic temperature sensor head and no less than a 1 m (3.28 ft) section of the attached cable interconnect shall be subjected to salt spray in accordance with Test Method B117. This test is not applicable to the embedded sensor configuration since it will be secured in a bear be arin ing. g. Th Thee fib fiber er op opti ticc te temp mper erat atur uree se sens nsor or sh shal alll be de de--

energized throughout the test. Duration of the test shall be 96 h. The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor com compon ponent entss sha shall ll be examined at the immediate conclusion of the test for corrosion and moisture penetration. The fiber optic temperature sensor shall be energized and the output signal monitored at ambient temperature tempe rature at the conclusion conclusion of the test. Performance Performance shall conform to S55.15. S58.16 Over-temperature— The The sensitive portion of the fiber optic temperature sensor head shall be rapidly transferred from ambient conditions to a temperature bath stabilized at 125 % of the fiber optic temperature sensor full scale temperature. The sensor head shall remain immersed in the bath for 15 min and then returned to ambient conditions. A reference measurement (see S55.3) shall be performed at the conclusion of the over-temperature test. Performance shall conform to S55.16. S58.17 Accelerated Life— The The sensitive portion of the sensor hea head d sha shall ll be the therma rmally lly cyc cycled led bet betwee ween n the fol follow lowing ing temperatures for 1500 cycles at a rate not greater than 2 cycles per minute: Sensor Range -40 to 15 -40 150º 0ºC C ((-40 40 to 30 302º 2ºF) F) 0 to 30 300º 0ºC C (3 (32 2 to 57 572º 2ºF) F)

Tem pe perature Cycling Points Ambien Ambi entt to -3 -30 0 ± 2° 2°C C ((-22 22 ± 3. 3.6° 6°F) F) Ambi Am bien entt to 28 285 5 ± 2° 2°C C (5 (545 45 ± 3. 3.6° 6°F) F)

The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor out output put sig signal nal sha shall ll be monitored during thermal cycling and observed for operation without witho ut inter interruptio ruption. n. A refere reference nce measu measuremen rementt (see S55.3) shall be performed at the conclusion of the thermal cycling test. Performance shall conform to S55.17. S58.18 Vibration— The The fiber optic temperature sensor shall be tes tested ted in acc accord ordanc ancee wit with h MIL MIL-STD -STD-16 -167-1 7-1,, typ typee 1. Test fixtures shall be designed to simulate the shipboard installation of the sensor type. The fiber optic temperature sensor output signal sig nal sha shall ll be mon monito itored red thr throug oughou houtt the tes testt and vis visual ually ly examin exa mined ed for ope operat ration ion wit withou houtt int interr errupt uption ion,, esp especi eciall ally y at resonant frequencies. The fiber optic temperature sensor shall be visually examined for physical damage during and at the conclusion of the test. A reference measurement in accordance with S55.3 shall be performed at the conclusion of the test. Performance shall conform to S55.18. S58.19 Shock— The The fiber optic temperature sensor shall be fully ful ly ass assemb embled led,, ene energ rgize ized, d, and tes tested ted in acc accord ordanc ancee wit with h grade A, class 1, type A of MIL-S-901. Test fixtures shall be designed to simulate the shipboard installation of the sensor type. typ e. The fibe fiberr opt optic ic tem temper peratu ature re sen sensor sor sha shall ll be vis visual ually ly examined for physical damage after each hammer blow and at the conclusion of the test. A reference measurement in accordance with S55.3 shall be performed at the conclusion of the test. Performance shall conform to S55.19. S58.20 EMI Emiss EMI tests shall Emission ion and Susce Susceptibil ptibility— ity— EMI be in accordance with the test methods specified in MIL-STD461 revision E, or later. Performance shall conform to S55.20. S58.21 Pressure— A ref refere erence nce mea measur sureme ement nt (se (seee S55 S55.3) .3) shall be performed performed prior to the test to ensur ensuree the sens sensor or head is not defective. The sensor head under test shall be installed in a fixture made from mild steel. The critical dimensions to which the fixture shall conform are shown on Fig. S12.0. S12.0. The 19.05 mm (0.75 in.) diameter counterbore shall contain Specification (grade 2) babbitt flush with the test fixture surface. The babbitt surface shall then be exposed to a gauge pressure of 12.411 6 40


F2362 − 03 (2013)

FIG. S12.0 Pressure Test Fixture

0.07 MPa (1800 6 10 pounds per square inch) for not less than 5 min. The fiber optic temperature sensor output signal shall be monitored during the test and examined for operation without interruption. The babbitt shall be removed from the 19.05 mm (0.75 in.) counterbore and a reference measurement (see S55.3) shall be performed. Performance shall conform to S55.21.

cation cati on (s (see ee C4 C4), ), pr prod oduc uced ed un unde derr es esse sent ntia iall lly y th thee sa same me conditions, in the same facility from the same materials and offer of fered ed for delivery delivery at the same tim time. e. One sample sample sha shall ll be subjected to the tests of Group I. The two samples shall be suppli sup plied ed wit with h the len length gth of cab cable le req requir uired ed for the int intend ended ed application, but shall not be less than 30.5 m (100 ft). The Group II test requires an additional embedded sensor due to the destructive nature of the test and shall only be accomplished for acquisitions for embedded designs. S59.3 Quality Conformance Testing— Each Each sensor in each lot of offer fered ed for del delive ivery ry sha shall ll be sub subjec jected ted to the ins inspec pectio tion n listed in Table S22 and shall be conducted in the order listed. Failure of any sensor to meet the requirements of this specification shall be cause for rejection.

S59. Inspection S59.1 Classification of Inspections— The The inspection requirements specified herein are classified as follows: (a) Qualification testing, and (b) Quality conformance testing. S59.2 Qualification Testing— Qualificati Qualification on testi testing ng shall be performed perfo rmed prior to produ production ction.. Quali Qualificati fication on testi testing ng shall be performed on samples which have been produced with equipment and procedures normally used in production. Qualification testing shall consist of the examinations and tests in the order specified in Table S21. Failure of any sensor to meet the requirements of this specification shall be cause for rejection.

TABLE S22 Quality Conformance Testing Examination and Tests General examination Accuracy Repeatability Insulation resistance

Requirement

Procedure

--S55.1 S55.2 S55.9

S59.4 S58.1 S58.2 S58.9

TABLE S21 Qualification Testing Examination and Tests Group I: One sample required General examination Accuracy Repeatability Sensitivity Response time Warm-up time Steady-state voltage and frequency Transient voltage and frequency Insulation resistance Power interruption Short circuit Line voltage reversal (dc) Temperature Enclosure Salt spray Over-temperature Accelerated life Vibration Shock E MI Group II: One sample required Pressure

Requirem en ent

Procedure

--S55.1 S55.2 S55.4 S55.5 S55.6 S55.7

S59.4 S58.1 S58.2 S58.4 S58.5 S58.6 S58.7

S55.8

S58.8

S55.9 S55.10 S55.11 S55.12 S55.13 S55.14 S55.15 S55.16 S55.17 S55.18 S55.19 S55.20

S58.9 S58.10 S58.11 S58.12 S58.13 S58.14 S58.15 S58.16 S58.17 S58.18 S58.19 S58.20

S55.21

S58.21

S59.4 General Examination— Each Each sensor shall be given a thorou tho rough gh exa examin minati ation on to det determ ermine ine con confor forman mance ce to the requirements of this specification with respect to material, finish, workmanship, construction, assembly, dimensions, weight and marking of identification. Examination shall be limited to the examinations that may be performed without disassembling the units. uni ts. Exa Examin minati ation on sha shall ll als also o inc includ ludee a che check ck of all adj adjust ust-ments. The manufacturer shall be responsible for ensuring that materi mat erials als use used d are man manufa ufactu ctured red,, exa examin mined ed and tes tested ted in accordance with the specifications and standards as applicable. S59.4.1 Clean S urfaces es of Cleaning ing and Sur Surfac facee Fin Finish ishes— es— Surfac castings, cast ings, forgings, molded parts parts,, stamp stampings, ings, machined and welded parts shall be free of defects such as cracks, porosity, underc und ercuts uts,, voi voids ds and gaps as wel welll as san sand, d, dir dirt, t, fins fins,, sha sharp rp edges, scale, flux, and other harmful or extraneous materials. External surfaces shall be smooth and edges shall be either rounde rou nded d or bev bevele eled. d. The There re sha shall ll be no bur burn-t n-thro hrough ugh.. The There re shall be no warpage or dimensional change due to heat from welding operation. There shall be no damage to adjacent parts resulting from welding. S59.5 Test Conditions— Unless Unless otherwise specified herein, the fiber optic temperature sensor(s) shall be fully assembled and energized throughout the duration of each test procedure.

S59.2.1 Sample Size— Two Two fiber optic temperature sensors of each lot shall be subjected to the qualification inspection. An inspection lot shall consist of all sensors of the same classifi41


F2362 − 03 (2013) Except where the following factors are the variables, the tests shall sha ll be con conduc ducted ted wit with h the equ equipm ipment ent und under er the fol follow lowing ing operating environmental conditions: (1) Ambient temperature shall be 25 6 5°C (77 6 9°F), and (2) Relative humidity shall be ambient.

S61.2.1 Embedded Sensor Head— In In addition to the above, the embedded embedded sensor sensor typ typee sha shall ll use a rem remova ovable ble metal tag which attaches to the cable interface for identification marking. The following notice shall be marked on the opposite side of the tag: NOTICE

S60. Certification

Reattach this tag to the cable interface after bearing insulation and keep affixed after the bearing is placed in service. S61.3 Warning Warning Labels— A visible label shall be affixed to the out outsid sidee of the opt opto-e o-elec lectro tronic nicss mod module ule cov cover er and sha shall ll contain the following:

S60.1 When specified specified in the purchase order order or contr contract, act, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and the requirements have been met. When specified in the purchase order or contract, a report of the test result shall be furnished. It is recommended that all test data remain on file for three years at the manufacturer’s facility for review by purchaser upon request.

WARNING UNTERMINATED OPTICAL CONNECTORS MAY EMIT LASER RADIATION. DO NOT VIEW BEAM WITH OPTICAL INSTRUMENTS AND AVOID DIRECT EXPOSURE TO BEAM. A visible label shall be affixed to the sensor head and the inside ins ide of the opt opto-e o-elec lectro tronic nicss mod module ule and sha shall ll con contai tain n the following:

S61. Product Marking S61.1 Opto-electr Each opto-elec opto-electronics tronics Opto-electronics onics Module— Each module shall be permanently and legibly marked in accordance with the acqu acquisitio isition n requi requiremen rements. ts. The follo following wing minim minimum um information shall be provided: (1) Nomenclature, (2) Design classification, (3) National Stock Number (NSN) if available, (4) Manufacturer’s name and model number, (5) Temperature range, (6) Contract number, and (7) A unique serial number from the manufacturer. S61.2 Sensor Head— Each Each sensor head shall be permanently and legibly marked in accordance with the acquisition requirements. The following minimum information shall be provided: (1) Nomenclature, (2) Design classification, (3) National Stock Number (NSN) if available, (4) Manufacturer’s name and model number, and (5) A unique serial number from the manufacturer.

WARNING INVISIBLE LASER RADIA RADIATION. TION. AVOID AVOID EXPOSURE TO THE BEAM. The labels shall be yellow lettering on a black background. S62. Pack Packagin aging g and Package Package Mark Marking ing S62.1 Fiber optic temperature temperature sensors shall be indiv individual idually ly packaged and marked in accordance with Section 15 15.. S63. Quality Assurance Assurance Provisions Provisions S63.1 Warranty— Specia Speciall war warran ranty ty req requir uireme ements nts sha shall ll be specified in the acquisition requirements. Otherwise, the standard commercial warranty applies.

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217194757 ASTM F2362 2013 Standard Specification for Temperature Monitoring Equipment

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