N595 Service Manual

N-595 Pulse Oximeter Service Manual

This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 Canada. Nellcor Puritan Bennett Inc. is an affiliate of Tyco Healthcare. Nellcor Healthcare. Nellcor,, Oxiband, Durasensor, Durasensor, OxiCliq, Dura-Y , Max-Fast and Max-Fast and O XI M AX are trademarks of Nellcor Puritan Bennett Inc. To obtain information about a warranty, if any, contact Nellcor’s Technical Services Department, or your local representative. Purchase of this instrument confers no express or implied license under any Nellcor Puritan Bennett patent to use the instrument with any sensor that is not manufactured or licensed by Nellcor Puritan Bennett. Covered by one or more of the following U.S. Pat ents and foreign equivalents: 4,621,643; 4,653,498; 4, 700,708; 4,770,179; Re. 35,122; 4,802,486; 4,869,254; 4,928,692; 4,934,372; 5,078,136; 5,351,685; 5,368,026; 5,485,847; 5,533,507; 5,662,106; and 5,853,364.

This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 Canada. Nellcor Puritan Bennett Inc. is an affiliate of Tyco Healthcare. Nellcor Healthcare. Nellcor,, Oxiband, Durasensor, Durasensor, OxiCliq, Dura-Y , Max-Fast and Max-Fast and O XI M AX are trademarks of Nellcor Puritan Bennett Inc. To obtain information about a warranty, if any, contact Nellcor’s Technical Services Department, or your local representative. Purchase of this instrument confers no express or implied license under any Nellcor Puritan Bennett patent to use the instrument with any sensor that is not manufactured or licensed by Nellcor Puritan Bennett. Covered by one or more of the following U.S. Pat ents and foreign equivalents: 4,621,643; 4,653,498; 4, 700,708; 4,770,179; Re. 35,122; 4,802,486; 4,869,254; 4,928,692; 4,934,372; 5,078,136; 5,351,685; 5,368,026; 5,485,847; 5,533,507; 5,662,106; and 5,853,364.

Contents Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Warnings ........................ .................................... ......................... .......................... .......................... .......................... ......................... .......................1 ...........1 Cautions ........................ ..................................... ......................... ........................ ......................... .......................... .......................... .........................2 ............2 Manual Overview ......................... ...................................... ......................... ......................... .......................... .......................... ......................2 .........2 Description of N-595 Monitor ......................... ....................................... ........................... ........................... ........................... ............... 3 Front Panel .......................... ....................................... .......................... .......................... .......................... .......................... ...................4 ......4 Rear Panel .......................... ....................................... ......................... ......................... .......................... .......................... ....................4 .......4 Softkey Menu ......................... ..................................... ......................... .......................... .......................... .......................... .................5 ....5 Related Documents .......................... ....................................... .......................... .......................... .......................... .......................... ................ ...8 8

Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Cleaning ......................... ...................................... ......................... ......................... .......................... .......................... ......................... .......................9 ...........9 Periodic Safety Checks ......................... ...................................... .......................... .......................... ........................... .........................9 ...........9 Functional Checks ......................... ...................................... .......................... .......................... .......................... ......................... ...................9 .......9 Battery .......................... ....................................... ......................... ........................ ......................... .......................... ........................... .......................10 .........10

Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 .11 Introduction .......................... ....................................... .......................... ......................... ......................... .......................... .......................... ............... ..11 11 Equipment Needed ........................ ..................................... .......................... .......................... .......................... .......................... ................. ....11 11 Performance Tests ........................ ..................................... .......................... ......................... ......................... .......................... ..................11 .....11 Battery Charge .......................... ....................................... ......................... ......................... .......................... .........................12 ............12 Power-Up Performance ........................ ...................................... .......................... ......................... ..........................12 .............12 Operational Setup ......................... ...................................... .......................... .......................... .......................... ....................17 .......17 General Operation ......................... ...................................... .......................... .......................... .......................... ....................24 .......24 Pulse Oximetry Functional Tests .......................... ....................................... ........................... .......................26 .........26 Safety Tests ......................... ...................................... ......................... ......................... .......................... .......................... .......................... ............... ..33 33

Power-On Settings and Service Functions . . . . . . . . . . . . . . . . . . . . . . . 35 Introduction .......................... ....................................... .......................... ......................... ......................... .......................... .......................... ............... ..35 35 Power-On Settings ......................... ...................................... .......................... .......................... .......................... .......................... .................35 ....35 Factory Default Settings .......................... ....................................... .......................... .......................... .......................... ....................35 .......35 Neonate Default Settings ......................... ...................................... ........................... ........................... .....................35 ........35 Adult Default Settings .......................... ....................................... ......................... ......................... .......................... ............... ..37 37 Service Functions .......................... ....................................... .......................... .......................... .......................... ......................... .................37 .....37 Accessing the Service Functions .......................... ........................................ ........................... .....................38 ........38 Exit Softkey ......................... ...................................... ......................... ......................... .......................... .......................... ..................39 .....39 Next Softkey ........................ ..................................... .......................... .......................... ......................... ......................... ..................39 .....39 Param Softkey Menu ........................ ..................................... .......................... .......................... .......................... ................. ....40 40 Print Softkey Menu ........................ ..................................... .......................... ......................... ......................... .....................41 ........41 Next Softkey Menu ........................ ..................................... .......................... .......................... ......................... ....................45 ........45 Setting Institutional Defaults (Sample) ........................ .................................... ......................... .......................... ............... ..47 47

N-595

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Contents

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Introduction .........................................................................................................51 How To Use This Section ...................................................................................51 Who Should Perform Repairs .............................................................................51 Troubleshooting Guide .......................................................................................51 Power ....................................................................................................... 53 Buttons .....................................................................................................54 Display/Alarms .........................................................................................55 Operational Performance .........................................................................56 Data Port ..................................................................................................57 Error Codes ........................................................................................................57 Other Messages .......................................................................................60

Disassembly Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Introduction .........................................................................................................63 Replacement Level Supported ...........................................................................63 Prior to Disassembly ...........................................................................................64 Fuse Replacement ..............................................................................................64 Monitor Disassembly ..........................................................................................65 Monitor Assembly ...............................................................................................66 Battery Replacement ..........................................................................................67 Removal ...................................................................................................67 Replacement ............................................................................................68 Power Entry Module (PEM) Removal/Replacement ...........................................68 Removal ...................................................................................................68 Replacement ............................................................................................69 Power Supply Removal/Replacement ................................................................70 Removal ...................................................................................................70 Replacement ............................................................................................71 Cooling Fan Removal/Replacement ...................................................................72 Removal ...................................................................................................72 Replacement ............................................................................................73 Display PCB Removal/Replacement ..................................................................74 Removal ...................................................................................................74 Replacement ............................................................................................75 User Interface PCB Removal/Replacement ....................................................... 76 Removal ...................................................................................................76 Replacement ............................................................................................77 Alarm Speaker Removal/Replacement ...............................................................78 Removal ...................................................................................................78 Replacement ............................................................................................79 Top Case Assembly Removal/Replacement ......................................................80 Removal ...................................................................................................80 Replacement ............................................................................................80

Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Introduction .........................................................................................................81 Obtaining Replacement Parts .............................................................................81 Parts List .............................................................................................................82

Packing for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Introduction .........................................................................................................85 Returning the N-595 ...........................................................................................85

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Contents General Instructions ............................................................................................ 85 Repacking in Original Carton ..............................................................................85 Repacking in a Different Carton ..........................................................................87

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Performance .......................................................................................................89 Electrical .............................................................................................................90 Environmental Conditions ...................................................................................90 Physical Characteristics ......................................................................................92 Compliance .........................................................................................................93 Manufacturer’s Declaration .................................................................................95 Safety Tests ......................................................................................................101 Ground Integrity ......................................................................................101 Earth Leakage Current ...........................................................................102 Enclosure Leakage Current .................................................................... 102 Patient Applied Risk Current ..................................................................102 Patient Isolation Risk Current .................................................................104

Data Port Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Introduction .......................................................................................................105 Configuring the Data Port .................................................................................105 Communication Baud Rate ....................................................................106 Communication Protocol ........................................................................107 Language Selection ................................................................................108 Nurse Call Setup ....................................................................................109 Analog Calibration Setup ........................................................................110 Agilent (HP) Communications ................................................................111 SpaceLabs Communications ..................................................................111 Marquette Communications ...................................................................112 Datex-Ohmeda Communications ...........................................................113 Connecting to the Data Port .............................................................................113 Communication With a PC ................................................................................115 Dump Instrument Info (Option 1) ............................................................115 Set Date and Time (Option 2) ................................................................115 Dump Trend (Option 3) ..........................................................................116 Dump Error Log (Option 4) .....................................................................116 Exit Interactive Mode (Option 5) .............................................................116 Using Data on the PC .......................................................................................116 Real-Time Printout ............................................................................................117 Column Heading .....................................................................................118 Patient Data and Operating Status .........................................................119 Trend Data Printout (ASCII Mode) .................................................................... 121 Trend Printout (Graph Mode) ............................................................................121 Nurse Call .........................................................................................................122 Analog Output ...................................................................................................123

Technical Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Oximetry Overview ...........................................................................................125 Functional versus Fractional Saturation .................................................125 Measured versus Calculated Saturation ................................................126 SatSeconds Alarm Management ......................................................................126 Reads Through Motion .....................................................................................127 OXIMAX Technology ........................................................................................127 Block Diagram Theory ......................................................................................128

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Contents

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

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Contents

Figures Figure 1: Figure 2: Figure 3: Figure 4: Figure 5: Figure 6: Figure 7: Figure 8: Figure 9: Figure 10: Figure 11: Figure 12: Figure 13: Figure 14: Figure 15: Figure 16: Figure 17: Figure 18: Figure 19: Figure 20: Figure 21: Figure 22: Figure 23: Figure 24: Figure 25: Figure 26: Figure 27: Figure 28: Figure 29: Figure 30: Figure 31: Figure 32: Figure 33: Figure 34: Figure 35: Figure 36: Figure 37: Figure 38: Figure 39:

N-595

N-595 Front Panel .........................................................................4 N-595 Rear Panel ..........................................................................4 SRC-MAX OXIMAX Oximetry Tester ..........................................26 Fuse Removal .............................................................................64 Corner Screws .............................................................................65 Separating Case Halves ..............................................................66 Removing the Battery ..................................................................67 Power Entry Module ....................................................................69 Power Supply ..............................................................................71 Cooling Fan .................................................................................73 Display PCB ................................................................................75 User Interface PCB .....................................................................77 Alarm Speaker .............................................................................79 Exploded View .............................................................................83 Packing ........................................................................................86 Data Port Pin Layout .................................................................114 Real-Time Printout ....................................................................117 Trend Data Printout (ASCII Mode) ............................................121 Monitor Trend Data Printout (Graph Mode) ...............................122 Sensor Event Record Printout (Graph Mode) ...........................122 Oxyhemoglobin Dissociation Curve ..........................................126 Block Diagram ...........................................................................128 Main PCB Schematic Diagram (Sheet 1 of 13) .........................131 Main PCB Schematic Diagram (Sheet 2 of 13) .........................133 Main PCB Schematic Diagram (Sheet 3 of 13) .........................135 Main PCB Schematic Diagram (Sheet 4 of 13) .........................137 Main PCB Schematic Diagram (Sheet 5 of 13) .........................139 Main PCB Schematic Diagram (Sheet 6 of 13) .........................141 Main PCB Schematic Diagram (Sheet 7 of 13) .........................143 Main PCB Schematic Diagram (Sheet 8 of 13) .........................145 Main PCB Schematic Diagram (Sheet 9 of 13) .........................147 Main PCB Schematic Diagram (Sheet 10 of 13) .......................149 Main PCB Schematic Diagram (Sheet 11 of 13) .......................151 Main PCB Schematic Diagram (Sheet 12 of 13) .......................153 Main PCB Schematic Diagram (Sheet 13 of 13) .......................155 Main PCB Assembly Drawing (Front View) ...............................157 Main PCB Assembly Drawing (Rear View) ...............................159 Linear Power Supply Schematic Diagram .................................161 Linear Power Supply Assembly Drawing ..................................163

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Contents

Tables Table 1: Table 2: Table 3: Table 4: Table 5: Table 6: Table 7: Table 8: Table 9: Table 10: Table 11: Table 12: Table 13: Table 14: Table 15: Table 16: Table 17: Table 18: Table 19: Table 20: Table 21:

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Equipment Needed ......................................................................11 Neonate Alarm Limit Factory Defaults .........................................35 Adult Alarm Factory Defaults .......................................................37 Problem Categories .....................................................................52 Power Problems ..........................................................................53 Button Problems ..........................................................................54 Display/Alarms Problems ............................................................55 Operational Performance Problems ............................................56 Data Port Problems .....................................................................57 Error Codes .................................................................................58 Power Supply Lead Connections ................................................71 Parts List .....................................................................................82 Electromagnetic Emissions .........................................................95 Electromagnetic Immunity ...........................................................96 Electromagnetic Immunity, Portable RF Equipment ....................98 Recommended Separation Distances .........................................99 Cables ....................................................................................... 100 Data Port Pin Outs ....................................................................113 Operating Status Codes ............................................................120 Nurse Call Relay Pin States ......................................................123 Rating of Nurse Call Relay ........................................................123

Introduction

Warnings

Warnings are identified by the WARNING symbol shown above. Warnings alert the user to potential serious outcomes (death, injury, or adverse events) to the patient or user.

WARNING: The sensor extrapolates from the date and time provided by the N-595 when recording the sensor event record to the sensor. The accuracy of the date/time is the responsibility of the N-595. It is recommended that the N-595 user set the time/date to the correct value before a sensor event record-enabled sensor is connected, and that this date/time not be changed while the sensor remains connected. Since a sensor with sensor event record data can be transported from one monitor to another, having discrepancies in the date/time between monitors and the sensor event record data will affect the order the sensor event record data appears. To eliminate this possible problem, all monitors within an institution should be set to the same time.

WARNING: Explosion hazard. Do not use the N-595 pulse oximeter in the presence of flammable anesthetics.

WARNING: Do not spray, pour, or spill any liquid on the N-595, its accessories, connectors, switches, or openings in the chassis.

WARNING: Before attempting to open or disassemble the N-595, disconnect the power cord from the N-595.

WARNING: The LCD panel contains toxic chemicals. Do not ingest chemicals from a broken LCD panel.

N-595

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Introduction

WARNING: The use of accessories, O XI - M AX sensors, and cables other than those specified may result in increased emission and/or decreased immunity of the N-595 pulse oximeter.

WARNING: Do not silence the N-595 audible alarm or decrease its volume if patient safety could be compromised.

Cautions

Cautions are identified by the CAUTION symbol shown above. Cautions alert the user to exercise care necessary for the safe and effective use of the N-595 pulse oximeter. Caution: Observe ESD (electrostatic discharge) precautions when working within the unit. Caution: Observe ESD (electrostatic discharge) precautions when disassembling and reassembling the N-595 and when handling any of the components of the N-595. Caution: When reassembling the N-595, tighten the screws that hold the cases together to a maximum of 10 inch-pounds. Over-tightening could strip out the screw holes in the top case, rendering it unusable. Caution: When installing the Power Supply or the User Interface PCB, tighten the seven screws to a maximum of 4 inch-pounds. Over-tightening could strip out the screw holes in the bottom case, rendering it unusable.

Manual Overview This manual contains information for servicing the Nellcor model N -595 pulse oximeter. Only qualified service personnel should service this product. Before servicing the N -595, read the operator's manual carefully f or a thorough understanding of safe operation of the N -595.

WARNING: Explosion hazard. Do not use the N-595 pulse oximeter in the presence of flammable anesthetics.

2

Introduction

Description of N-595 Monitor The N-595 Monitor is intended for the c ontinuous non -invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO 2) and pulse rate. The N-595 is intended for use with neonatal, pediatric, and adult patients during both no-motion and motion conditions and for patients who are well or poorly perfused, in hospitals, hospital -type facilities, intra -hospital transport, and home environments. For prescription use only. Note:

Hospital use typically covers such areas as general care floors, operating rooms, special procedure areas, intensive and critical care areas, within the hospital plus hospital -type facilities. Hospital -type facilities include physician office based facilities, sleep labs, skilled nursing facilities, surgicenters, and sub -acute centers. Intra-hospital transport includes transport of a patient within the hospital or hospital-type facility. Home Care use is defined as managed/used by a lay person (parent or other similar non -critical caregiver) in the home environment. Use with any particular patient requires the selection of an appropriate O XI -M AX oxygen sensor as described in the N -595 Operator's Manual. Motion performance claims are applicable to models MAX -A, MAX-AL, TM oximetry sensors. MAX-P, MAX- N, and MAX-I Nellcor O XI M AX

Through the use of the four softkeys, the operator can access trend information, select an alarm limit to be changed, choose the language to be used, adjust the internal time clock, and change communications protocol. The N -595 can operate on AC power or on an internal battery. The controls and indicators for the N -595 are illustrated and identified in Figure 1 and Figure 2.

N-595

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Introduction

Front Panel

1. SpO2 Sensor Port

12. ADJUST DOWN Button

2. AC Power Indicator

13. Neonate Mode Indicator

3. ON/STANDBY Button

14. CONTRAST Button

4. Low Battery Indicator

15. Fast Response Mode Indicator

5. Waveform Display

16. Softkeys

6. SatSecondsTM Timer

17. Menu Bar

7. %SpO2 Display

18. Data In-Sensor Indicator

8. Pulse Rate Display

19. Motion Indicator

9. Alarm Silence Display

20. Pulse Search Indicator

10. ALARM SILENCE Button

21. Speaker

11. ADJUST UP Button

Figure 1: N-595 Front Panel

Rear Panel

1. Equipotential Terminal (Ground)

4. Fuse Receptacle

2. AC Power Connector

5. Supply Voltage Selector Switch

3. Data Port Connector

Figure 2: N-595 Rear Panel

4

Introduction

Softkey Menu The N-595 hierarchy is outlined below. The user chooses the type of trend data to view by selecting either Monitor trend or Se nsor trend data in the Trend menu. Sensor sub-menu choices differ depending on what type of in-sensor data is stored in the sensor chip, such as, event or loop. The menu structure includes BACK softkey options that allow the user to move back to the previous menu level without exiting the Trend menu entirely. Trend data must be compiled on entry/reentry to the Trends menu. When the softkeys are available, both BACK and EXIT options are available. The BACK softkey goes to the previous level and the EXIT softkey goes to the main menu. If only one space is available the BACK Softkey is included, this may require going back one or two levels to get to an EXIT softkey. The BACK and EXIT softkeys are positioned on the right-most softkeys, respectively. The below menu structure identifies: •

BOLDFACE TYPE — softkey title as displayed on the monitor

•

Underlined Text — description of the softkey menu item

•

Italicized Text — the destination of the BACK and EXIT softkeys

(Main Menu) LIMITS (Limits Menu)

-

SELECT NEO ADULT EXIT (to Main menu) TREND (Trend Menu) MON (Monitor Menu) VIEW (Monitor Trend View Menu) DUAL SPO2 PULSE NEXT (History/Amplitude Menu) HIST (Delete/Print2 Menu) DELETE (delete Trends) “DELETE TRENDS” YES (return to Main menu) NO (back to Delete/Print menu) PRINT BACT (back to Hist/Amp menu) EXIT (to Main menu) AMP (Amplitude Menu) BACK (back to Hist/Amp menu) EXIT (to Main menu) BACK (back to Monitor Trend View menu) EXIT (to Main menu)

N-595

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Introduction

-

-

ZOOM (Monitor Trend Zoom Menu) TIME (for current view, cycle through 48h, 36h, 12h, 8h, 4h, 2h, 1h, 30m, 15m, 40s, 20s) SCALE (for current view, cycle through ±5, ±10, ±15, ±20, ±25, ±30, ±35, ±40 and ±50 of the max and min. values under the cursor, default to 10 to 100 if there is no data point under the cursor) AUTO (based on all of the graphed trend data: maximum value, rounded up to nearest multiple of 10, minimum value, rounded down to nearest multiple of 10 minus 10) BACK (back to Monitor menu) NEXT (Delete/Print1 Menu)

-

-

-

-

-

DELETE “DELETE TRENDS?” YES (to Main menu) NO (back to Delete/Print1 menu) PRINT BACK (back to Monitor menu) EXIT (to Main menu) BACK (back to Trend menu) SENSOR (Sensor/Event Menu)

-

(if Event data is in the sensor, the following menu, the Screen will remain in the appropriate state until the next menu selection is made) GRAPH (Graph Menu) (display events #1-N, in inverse chronological order; up/down also scroll through events in order) < (show previous graph, only available when there is a previous graph) > (show next graph, only available when there is a next graph)

-

-

-

PRINT BACK (back to Sensor menu) TABLE (Table Menu) ^ (show previous table, only available when there is a previous

-

-

-

graph; bottom/top line repeats in new table) v (show next table, only available when there is a next graph; bottom/top line repeats in new table)

-

-

-

PRINT BACK (back to Sensor menu) EXIT (to Main menu)

(Sensor/Loop Menu) (If continuous-Loop data is in the sensor, the following will be displayed) VIEW (Sensor Trend View Menu) DUAL (shows SPO2+BPM)

SPO2 PULSE ZOOM (cycle through 2h. 1h, 30m, and 15m for current view) PRINT BACK (to Trend menu) EXIT (to Main menu) SETUP (Setup Monitor Menu) VIEW (Setup View Menu) PLETH BLIP BACK (back to Setup menu) EXIT (to Main menu) SENSOR (Setup Sensor Menu)

6

Introduction

-

-

DATA (On-screen options for SENSOR-R (Write-once Sensor) sensor are: “SPO2, SPO2+BPM, DEFAULT.” On-screen options for SENSOR-RW (rewritable sensor) are: “SPO2, SPO2+BPM, DEFAULT.” SELECT toggles SENSOR-R or SENSOR-RW sensor type; up/down keys scroll through options in order.) The SENSOR-R feature supports all of the current O XI M AX sensors.

-

SELECT BACK (back to Setup Sensor menu) EXIT (to Main menu) MSG (Sensor Set Message Menu) BACK (back to Setup Sensor menu) EXIT (to Main menu) NEXT (Clock/Language Menu) CLOCK (Clock Menu) SET (Clock Set Menu) SELECT (press select to toggle through hours, minutes, -

seconds, month, day, year; use up/down buttons to set each selection) BACK (back to Clock/Language menu) EXIT (to Main menu) LANG (Language Setup Menu) (use up/down buttons to toggle though languages) BACK (back to Clock/Language menu) NEXT (Communication/Nurse Call Menu) COMM (Communication Port Configuration Menu)

SELECT BACK (back to Communication/Language menu) EXIT (to Main menu) NCALL (Nurse Call Menu) NORM + NORM BACK (back to Communication/Nurse Call menu) EXIT (to Main menu) NEXT (Analog/Mode Menu) ANALOG (Analog Voltage Select Menu) 0 VOLT 1 VOLT STEP BACK (back to Analog/Mode menu) MODE (Mode Menu) BACK (back to Analog/Mode menu) EXIT (to Main menu) BACK (back to Communication/Nurse Call menu) EXIT (to Main menu) BACK (back to Clock/Language menu) BACK (back to Setup menu) EXIT (to Main menu) LIGHT (Turns the display backlight on or off)

N-595

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Introduction

Related Documents To perform test and troubleshooting procedures and to understand the principles of operation and circuit analysis sections of this manual, you must know how to operate the monitor. Refer to the N -595 operator's manual. To understand the various Nellcor approved O XI -M AX sensors that work with the monitor, refer to the individual O XI -M AX sensor's directions for use. The latest version of the operator’s manual and the service manual are posted on the Internet at: http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/ProductManuals.html

Spare Parts and Accessories are posted on the Internet at: http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/Apartweb/main/PartAcceMenu.html

8

Routine Maintenance

Cleaning WARNING: Do not spray, pour, or spill any liquid on the N-595, its accessories, connectors, switches, or openings in the chassis.

For surface-cleaning and disinfecting follow your institution's procedures or: •

The N-595 may be surface-cleaned by using a soft cloth dampened with either a commercial, nonabrasive cleaner or a solution of 70% alcohol in water, and lightly wiping the surfaces of the monitor.

•

The N-595 may be disinfected using a soft cloth saturated with a 10% solution of chlorine bleach in tap water.

Before attempting to clean an SpO 2 O XI -M AX sensor, read the directions for use enclosed with the O XI -M AX sensor. Each sensor model has cleaning instructions specific to that sensor.

Periodic Safety Checks The N-595 requires no calibration. The battery should be replaced at least every 2 years. See Battery Replacement on page 67. The following checks should be performed at least every 24 months by a qualified service technician. 1. Inspect the equipment for mechanical and functional damage.

2. Inspect safety labels for legibility. If the labels are damaged, contact Nellcor’s Technical Services Department, 1.800.635.5267, or your local Nellcor representative.

Functional Checks If the monitor has been visibly damaged or subjected to mechanical shock (for example, if dropped), immediately perform the performance tests. See Performance Tests on page 11. N-595

9

Routine Maintenance

The following checks should be performed at least every 2 years by a qualified service technician. 1. Perform the electrical safety tests detailed in Safety Tests on page 33. If the unit fails these electrical safety tests, refer to Troubleshooting on page 51.

2. Inspect the fuses for proper value and rating (F1 & F2 = 0.5 amp, 250 volts).

Battery Nellcor recommends replacing the instrument's battery every 2 years. When the N-595 is going to be stored for 3 months or more, remove the battery prior to storage. To replace or remove the battery, refer to Disassembly Guide on page 63. If the N-595 has been stored for more than 30 days, charge the battery as described in Battery Charge on page 12. A fully discharged battery requires 14 hours with the monitor turned off, or 18 hours if it is in use, to receive a full charge. The battery is being charged whenever the instrument is plugged into AC. Note:

10

If power stored in the battery is too low, the unit will not operate even when plugged into AC. If this occurs, leave the unit plugged in to allow the battery to charge as described in Battery Charge on page 12. After approximately 10 minutes, the battery should have enough charge to allow the unit to operate on AC.

P e r f o r m a n c e Ve r i f i c a t i o n

Introduction This section discusses the tests used to verify performance following repairs or during routine maintenance. All tests can be performed without removing the N-595 cover. All tests except the battery charge and battery performance tests must be performed as the last operation before the monitor is returned to the user. If the N-595 fails to perform as specified in any test, repairs must be made to correct the problem before the monitor is returned to the user.

Equipment Needed Table 1: Equipment Needed Equipment

Description

Digital Multimeter (DMM)

Fluke Model 87 or equivalent

AX oxygen Durasensor ® O XI -M sensor

DS-100A

O XI M AX oxygen sensor

MAX-A

Safety Analyzer

Must meet current AAMI ESI/1993 & IEC 60601-1/1998 specifications

Pulse oximetry cable

DOC-10

Data interface cable

EIA-232 cable (optional)

Stopwatch

Manual or electronic

Nellcor model SRC-MAX Tester

Provides testing for DigiCal compatible Monitors

Performance Tests The battery charge procedure should be performed before monitor repairs whenever possible. Note:

N-595

This section is written using Nellcor factory -set defaults. If your institution has pre configured custom defaults, those values will be displayed. Factory defaults can be restored (see Reset Softkey on page 40).

11

Performance Verification

Battery Charge Perform the following procedure to fully charge the battery. 1. Connect the monitor to an AC power source.

2. Verify that the monitor is off and that the AC Power/Battery Charging indicator is lit.

3. Charge the battery for at least 14 hours with the monitor turned off or 18 hours with the monitor turned on.

Power-Up Performance The power -up performance tests verify the following monitor functions: •

Power-On Self-Test on page 12

•

Power-On Defaults and Alarm Range Limits on page 13

Power-On Self-Test 1. Connect the monitor to an AC power source.

2. Verify that the monitor is off and that the AC Power/Battery Charging indicator is lit.

3. Do not connect any cables to the monitor.

4. Turn on the N-595 by pressing the ON/STANDBY button. Observe the monitor front panel. The monitor must perform the following:

12

•

Within 2 seconds all LEDs are illuminated, all pixels on the LCD display are illuminated, and the backlight comes on.

•

The indicators remain lighted.

•

The LCD display shows NELLCOR and the software version of the N-595.


Note:

The software “Version” displayed in the example below is X.X.X.X.The actual software version will be displayed on your monitor.

•

A 1-second beep sounds, indicating proper operation of the speaker, and all indicators turn off except the AC Power/Battery Charging indicator and the LCD screen.

•

The N-595 begins normal operation.

PLETH VIEW:

BLIP (MAGNIFIED) VIEW

Power-On Defaults and Alarm Range Limits

N-595

Note:

When observing or changing alarm limits, a time -out is in effect (approximately 10 seconds). If no action is taken within the time -out, the monitor automatically returns to the monitoring display.

Note:

The descriptions that follow are based on the assumption that Pleth view is the view that has been selected.

13


The steps for changing an alarm limit are the same if the view being used is Blip (Magnified) view. Note:

Power- on defaults will be the factory -set defaults or the defaults set by your institution.

1. Turn on the N-595 by pressing the ON/STANDBY button.

LIMITS

2. Press the LIMITS softkey. Verify that the monitor emits a single beep and the pleth view is replaced with a display of the alarm limits. The upper alarm limit for %SpO2 will indicate an alarm limit of “100” (or institutional default setting) inside a box.

3. Press and hold the ADJUST DOWN button. Verify that the boxed number for %SpO2 upper alarm limit reduces to a minimum of “86.”

Note:

SELECT

A decimal point in the display indicates that the alarm limits have been changed from factory default values.

4. Press the SELECT softkey. Verify that the monitor emits a single beep and the box moves to the %SpO 2 lower alarm limit of “85” (or your institutional default setting).

5. Press and hold the ADJUST DOWN button and verify that the %SpO 2 lower alarm limit display reduces to a minimum of “20.”

14


6. Press and hold the ADJUST UP button and verify that the %SpO 2 lower alarm limit display cannot be raised past the upper alarm limit setting of “85.”

EXIT

7. Press the EXIT softkey.

LIMITS

8. Press the LIMITS softkey

SELECT

9. Press the SELECT softkey three times. Verify that the monitor emits a beep after each keystroke. The Pulse upper alarm limit should be “170” and should be boxed.

10. Press and hold the ADJUST DOWN button.

11. Verify that the minimum displayed value is “41” for the BPM upper alarm limit.

N-595

EXIT


LIMITS

13. Press the LIMITS softkey.

15


SELECT

14. Press the SELECT softkey four times. Verify that the pulse rate lower alarm limit display indicates an alarm limit of “40” and is boxed.

15. Press and hold the ADJUST DOWN button. Verify that the boxed pulse rate lower alarm limit display reduces to a minimum of “30.”

16. Press and hold the ADJUST UP button and verify that the boxed pulse rate lower alarm limit display cannot be adjusted above the pulse rate upper alarm limit of “40.”

EXIT


LIMITS


SELECT

19. Press the SELECT softkey two times. Verify that SatSeconds SAT-S alarm is selected.

20. Press the ADJUST UP button repeatedly and verify that the SatSeconds alarm display cycles from OFF through 10, 25, 50, 100, OFF.

21. Press the ON/STANDBY button to turn the monitor off.

22. Press the ON/STANDBY button to turn the monitor back on. 16


LIMITS

23. Press the LIMITS softkey. Verify that the %SpO 2 upper alarm limit display is boxed and indicates an alarm limit of “100.”

24. Verify that the %SpO2 lower alarm limit display is boxed and indicates an alarm limit of “85.”

25. Verify that the SatSeconds SAT-S alarm is set to OFF.

26. Verify that the pulse rate upper alarm limit display is boxed and indicates an alarm limit of “170.”

27. Verify that the pulse rate lower alarm limit display is boxed and indicates an alarm limit of “40.”


Operational Setup Operational setup procedures verify and set up the following parameters.

N-595

•

Alarms and Alarm Silence on page 18

•

Alarm Volume Control on page 20

•

Pulse Tone Volume Control on page 20

•

Nurse Call on page 21

•

Analog Output on page 22

•

Operation on Battery Power on page 23

17


Alarms and Alarm Silence

1. Sensor Port 1. Connect the DOC-10 monitor cable to the monitor sensor port.

2. Connect the DS-100 O XI -M AX sensor to the DOC -10 cable and your finger.

3. Press the ON/STANDBY button to turn the monitor on.

SETUP

4. Press the SETUP softkey.

VIEW

5. Press the VIEW softkey.

PLETH

6. Press the PLETH softkey. Verify that the %SpO2 and BPM indicate your SpO2 and pulse rate.

LIMITS


SELECT

8. Press the SELECT softkey to select SpO2 lower alarm limit.

9. Press the ADJUST UP button until the SpO2 lower alarm limit indicates 99.

SELECT

10. Press the SELECT softkey three times to select pulse rate lower alarm limit.

11. Press the ADJUST UP button until the pulse rate lower alarm limit indicates 160.

12. Verify the following monitor reactions: 18


•

The plethysmograph waveform tracks your pulse rate.

•

The pulse tone is heard.

•

Your SpO2 and pulse rate are flashing in the %SpO 2 and BPM displays.

•

The audible alarm sounds, indicating that both parameters have violated the alarm limits.

13. Press and hold the ALARM SILENCE button until the BPM display indicates “SEC.” Continue to press the ALARM SILENCE button and press the ADJUST DOWN button until “60” is displayed in the %SpO 2 display.

14. Press the ALARM SILENCE button.

15. With the monitor’s alarm silenced, verify the following:

•

The alarm remains silenced for 60 seconds.

•

The ALARM SILENCE indicator lights.

•

The %SpO2 and BPM displays continue to flash.

•

The pulse tone is still audible.

•

The audible alarm returns in approximately 60 seconds.

16. Press and hold the ALARM SILENCE button until the BPM display indicates “SEC.” Continue to press the ALARM SILENCE button and press the ADJUST DOWN button until “30” is displayed in the %SpO 2 display.

17. Press the ADJUST UP button and verify that the displays indicate 60 SEC, 90 SEC, 120 SEC, and OFF. Release the ADJUST UP button when the display indicates “OFF.”

18. Press and release the ALARM SILENCE button. Verify that the monitor’s ALARM SILENCE indicator flashes.

19. Wait approximately 3 minutes. Verify that the monitor’s alarm does not return. After 3 minutes, the monitor’s alarm silence reminder beeps three times, and will continue to do so at approximately 3 -minute intervals.

N-595

19


Alarm Volume Control After completing Alarms and Alarm Silence on page 18, perform the following procedure. 1. Press and hold the ALARM SILENCE button and verify the following: •

“OFF” is displayed for approximately 3 seconds.

•

After 3 seconds, a steady tone is heard at the default alarm volume setting, the %SpO2 display indicates “VOL,” and the BPM display indicates the default setting of 7.

2. While still pressing the ALARM SILENCE button, press the ADJUST DOWN button until an alarm volume setting of 1 is displayed. Verify that the volume of the alarm has decreased but is still audible.

3. Continue pressing the ALARM SILENCE button and press the ADJUST UP button to increase the alarm volume setting to a maximum value of 10. Verify that the volume increases.

4. Continue pressing the ALARM SILENCE button and press the ADJUST DOWN button until a comfortable audio level is attained.

5. Release the ALARM SILENCE button. The tone will stop.

Pulse Tone Volume Control After completing Alarm Volume Control on page 20, perform the following procedure. 1. Press the ADJUST UP button and verify that sound level of the beeping pulse tone volume increases.

2. Press the ADJUST DOWN button and verify that the sound level of the beeping pulse tone volume decreases until it is no longer audible.

3. Press the ADJUST UP button to return the beep volume to a comfortable level.

20


4. Remove the O XI -M AX sensor from your finger. Disconnect the DOC -10 monitor cable and the O XI -M AX sensor.

Nurse Call

1. Data Port Connector 1. Connect the negative lead of a voltmeter to pin 5 and positive lead to pin 11 of the data port connector (1) on the back of the monitor. Ensure that the audible alarm is not silenced or turned off.

2. Connect the SRC-MAX tester to the DOC -10 sensor cable.

3. Connect the DOC-10 sensor cable to the monitor SpO 2 connector.

4. Turn on the monitor and wait for the monitor to complete POST.

Note:

The monitor should indicate a %SpO 2 alarm of 75.

5. Verify an output voltage at pins 5 and 11 between +5 to +12 VDC.

6. Press the ALARM SILENCE button. With no active audible alarm, the output voltage at pins 5 and 11 must be between -5 to -12 VDC. This verifies the RS-232 Nurse Call function.

7. With the instrument in an alarm condition, use a digital voltmeter (DVM) to verify that there is no continuity (1 megohms or greater) between pins 8 and 15 and that there is continuity (60 ohms or less) between pins 7 and 15.

8. Press the SRC-MAX tester %SpO 2 button to change the %SpO 2 to 90.

N-595

21


9. Use a DVM to verify that there is continuity between pins 8 and 15 and that there is no continuity between pins 7 and 15. This verifies the solid state Nurse Call function.

Analog Output

1 Data Port Connector 1. Connect the negative lead of a voltmeter to pin 10 and the positive to lead pin 6 of the data port connector (1) on the back of the monitor.

SETUP


NEXT

3. Press the NEXT softkey.

NEXT


NEXT


ANALOG 6.

1 VOLT

Press the ANALOG softkey.

7. Press the 1 VOLT softkey.

8. Verify that the monitor’s output voltage is +1.0 ± 0.025 VDC. This verifies the analog SpO2 function.

9. Leave the negative lead connected to pin 10 and verify 1.0 ± 0.025 VDC on pins 13 and 14. This verifies the monitor’s BPM and Pleth function.

22


Note:

If step 8 takes more than 2 minutes to complete, the analog output will time out. Repeat steps 2 through 6 to initiate the analog output.

10. Move the positive lead back to pin 6.

SETUP


NEXT


NEXT


NEXT


ANALOG 15. Press the ANALOG softkey.

0 VOLT

16. Press the 0 VOLT softkey.

17. Verify that the monitor’s output voltage is +0.0 ± 0.025 VDC.

18. Leave the negative lead connected to pin 10 and verify 0.0 ± 0.025 VDC on pins 13 and 14.

Note:

If step 16 takes more than 2 minutes to complete, the analog output will time out. Repeat steps 10 through 14 to initiate the analog output.

19. Disconnect the voltmeter from the instrument.

Operation on Battery Power 1. Disconnect the instrument from AC power and verify that the AC POWER indicator turns off.

2. Verify that the monitor continues monitoring normally and that the LOW BATTERY indicator is not lit.

N-595

23


Note:

If the LOW BATTERY indicator is illuminated, perform Battery Charge on page 12.

3. Connect the monitor to AC power and verify that the AC POWER indicator turns on and that the instrument is monitoring normally.

General Operation The following tests are an overall performance check of the system: •

LED Excitation Test on page 24.

•

Operation with a Live Subject on page 25.

LED Excitation Test This procedure uses normal system components to test circuit operation. A Nellcor O XI M AX oxygen sensor, model MAX -A, is used to examine LED intensity control. The red LED is used to verify intensity modulation caused by the LED intensity control circuit.

1 Sensor Port 1. Connect the monitor to an AC power source.

2. Connect a DOC-10 pulse oximetry cable to the monitor sensor port.

3. Connect a MAX-A O XI -M AX sensor to the O XI -M AX sensor -input cable.

4. Press the ON/STANDBY button to turn the monitor on.

5. Leave the O XI -M AX sensor open with the LEDs and photo detector visible.

24


6. After the monitor completes its normal power -up sequence, verify that the O XI -M AX sensor LED is brightly lit.

7. Slowly move the O XI -M AX sensor LED in proximity to the photo detector element of the O XI -M AX sensor (close the O XI -M AX sensor slowly). Verify, as sensor, that the LED intensity the LED approaches the optical O XI M AX decreases.

sensor and notice that the LED intensity increases. 8. Open the O XI M AX

9. Repeat step 7 and the intensity will again decrease. This variation is an indication that the microprocessor is in proper control of LED intensity.


Operation with a Live Subject Patient monitoring involves connecting the O XI M AX sensor to a live subject for a qualitative test. .

1 Sensor Port 1. Ensure that the monitor is connected to an AC power source.

2. Connect a DOC-10 pulse oximetry cable to the monitor sensor port.

3. Connect a Nellcor O XI M AX MAX-A oxygen O XI M AX sensor to the pulse oximetry cable.

4. Clip the MAX-A to the subject as recommended in the O XI M AX sensor's directions for use.

N-595

25


5. Press the ON/STANDBY button to turn the monitor on and verify that the monitor is operating.

6. The monitor should stabilize on the subject's physiological signal in about 15 to 30 seconds. Verify that the oxygen saturation and pulse rate values are reasonable for the subject.

Pulse Oximetry Functional Tests These tests utilize the pulse oximetry functional tester (Nellcor model SRC-MAX) to verify the performance of the N -595 monitor. See Figure 3. All of these tests should be done in sequence.

1 DOC-10 Cable Connector

6

% Modulation Select Button

2 RED LED Drive Indicator

7

% SpO2 Select Button

3 Not Used For N-595

8

Light Level Selection Button

4 Not Used For N-595

9

Pulse Rate Selection Button

5 Battery Low Indicator

10 INFRARED LED Drive Indicator

Figure 3: SRC-MAX O XI M AX Oximetry Tester

Introduction The SRC-MAX functional tester allows qualified technicians to functionally test Nellcor O XI M AX technology- based pulse oximeters and OEM O XI M AX technology- based monitors. The technician must perform the test setup procedure

26


before performing tests 1 through 4. The following is a brief description of each test: •

Test Setup — This procedure establishes the baseline for all the other tests. The Test Setup procedure must be performed before performing any or all of the SRC -MAX tests.

•

sensor attached to a Test 1: BPM — This procedure simulates an O XI M AX patient indicating 60 BPM and 200 BPM. The test setup procedure sets up Test 1 for 60 BPM.

•

Test 2: SpO2 — This procedure simulates an O XI M AX sensor attached to a patient, indicating 75 percent blood oxygen saturation and 90 percent blood oxygen saturation. The test setup procedure sets up Test 2 for 75 percent blood oxygen saturation.

•

Test 3: Modulation — This procedure simulates an O XI M AX sensor attached to a patient indicating low and high pulse strength. The test setup procedure sets up Test 3 for low pulse strength.

•

sensor attached to a Test 4: Light — This procedure simulates an O XI M AX patient indicating low and high light level passing through the patient at the sensor site. The test setup procedure sets up Test 4 for low light level.

Initial Setup

1.Sensor Port 1. With the monitor turned off, connect the DOC -10 pulse oximetry cable to the sensor port.

2. Connect the SRC-MAX tester to the other end of the DOC -10 cable.

3. Turn on the monitor by pressing the ON/STANDBY button.

N-595

27


4. After the monitor completes POST, the monitor will:

•

be in SpO2 alarm

•

display an %SpO2 of 75 (pass criteria is 73 to 77 %SpO 2 inclusive)

•

display a pulse rate of 60 (pass criteria is 57 to 63 BPM inclusive)

•

pulse amplitude indicator - display low level modulation (low amplitude pulse amplitude indicator)

Test #1: BPM 1. Press the SRC-MAX % Pulse Rate selection button. The SRC -MAX Pulse Rate 200 LED will light.

2. The monitor BPM will increase to 200 and stabilize at 200 BPM. The test pass criteria is 197 to 203 BPM inclusive.

3. The monitor will display:

28

•

75 %SpO2

•

200 BPM (pass criteria is 197 to 203 BPM inclusive)

•

alarm

•

pulse amplitude indicator - low level modulation


4. Press the SRC-MAX Pulse Rate select button. The SRC -MAX Pulse Rate 60 LED will light.

5. The monitor pulse rate will decrease to 60 and stabilize at 60 BPM. The test pass criteria is 57 to 63 BPM inclusive.


•

75 %SpO2

•

60 BPM (test pass criteria is 57 to 63 BPM inclusive)

•

alarm

•


Test #2: SpO 2 1. Press the SRC-MAX %SpO2 select button. The SRC -MAX %SpO2 90 LED will light.

2. The monitor will display three dashes until the SRC -MAX stabilizes at 90 %SpO2. The test pass criteria is 88 to 92 %SpO 2 inclusive.

N-595

29



•

90 %SpO2 (pass criteria is 88 to 92 %SpO 2 inclusive)

•

60 BPM

•

no alarm

•


4. Press the SRC-MAX %SpO2 select button. The SRC -MAX %SpO2 75 LED will light.

5. The monitor will display three dashes until the SRC -MAX stabilizes at 75 %SpO2. The test pass criteria is 73 to 77 %SpO 2 inclusive.


•

75 %SpO2 (pass criteria is 73 to 77 %SpO 2 inclusive)

•

60 BPM

•

alarm

•


Test #3: Modulation Level 1. Press the SRC-MAX % Modulation selection button. The SRC -MAX % Modulation

30

LED will light.


2. The monitor pulse amplitude waveform will initially increase in amplitude and then stabilize.


•

75 %SpO2 (test pass criteria is 73 to 77 %SpO 2 inclusive)

•


•

alarm

•

pulse amplitude indicator - high level modulation

4. Perform Test #1: BPM on page 28. The pulse amplitude indicator should indicate high level modulation.

5. Perform Test #2: SpO2 on page 29. The pulse amplitude indicator should indicate high level modulation.

6. Press the SRC-MAX % Modulation selection button. The SRC -MAX % Modulation

LED will light.

7. The monitor pulse amplitude waveform will decrease in amplitude.

N-595

31



•

75 %SpO2

•

60 BPM

•

alarm

•


9. Perform Test #1: BPM on page 28. The pulse amplitue indicator should indicate low level modulation.

10. Perform Test #2: SpO2 on page 29. The pulse amplitue indicator should indicate low level modulation.

Test #4: Light 1. Press the SRC-MAX Light Level selection button. The SRC -MAX Light Level

LED will light.

2. The monitor pulse amplitude waveform will initially increase in amplitude and then stabilize.


32

•

75 %SpO2 (test pass criteria is 73 to 77 %SpO 2 inclusive)

•


•

alarm

•

pulse amplitue indicator - high level modulation


4. Perform Test #1: BPM on page 28. The pulse amplitue indicator should indicate high level modulation.

5. Perform Test #2: SpO2 on page 29. The pulse amplitue indicator should indicate high level modulation.

6. Press the SRC-MAX Light Level selection button. The SRC -MAX Light Level

LED will light.

7. The monitor pulse amplitude waveform will decrease in amplitude.


•

75 %SpO2

•

60 BPM

•

alarm

•

low level modulation

9. Perform Test #1: BPM on page 28. The pulse amplitue indicator should indicate low level modulation.

10. Perform Test #2: SpO2 on page 29. The pulse amplitue indicator should indicate low level modulation.

11. Disconnect all equipment and turn off the monitor.

Safety Tests The N-595 safety tests meet the standards of, and are performed in accordance with, IEC 60601 -1 (EN 60601 -1, Amendment 1, Amendment 2,) and UL 2601 -1, for instruments classified as Class 1 and TYPE BF and ANSI/AAMI Standard ES1. Applicable tests for these standards are listed below. Technicians must be familiar with the Standards applicable to the technicians institution and country. Test equipment and its application must comply with the applicable standard. • N-595

Ground Integrity on page 101 for test value. 33


•

Earth Leakage Current on page 102 for test values.

•

Enclosure Leakage Current on page 102 for test values.

•

Patient Applied Risk Current on page 102 for test values.

•

Patient Applied Risk Current on page 102 for test values.

Note:

34

Patient Applied Risk Current and Patient Isolation Risk Current: The leakage test lead from the test equipment must be connected to the N -595 SpO2 Sensor Port through the DOC -10 pulse oximetry cable using a male 9- pin “D” type connector that has all pins shorted together. During these tests the monitor will display “EEE 10,” after the “Nellcor” screen.

Power-On Settings and Service Functions

Introduction This section discusses how to reconfigure power -on default values and access the service functions.

Power-On Settings The following paragraphs describe how to change power -on default settings. By using softkeys as shown in Figure 1 on page 4, the user can change alarm limits, the type of display, baud rate, time and date, and trends to view. Some values cannot be saved as power -on default values. An SpO 2 lower alarm limit less than 80 will not be saved as a power -on default. Audible Alarm Off will not be accepted as a power -on default. An attempt to save either of these values as default will result in an invalid tone. These limits can be adjusted lower for the current patient, but they will be lost when the instrument is turned off. A decimal point is added to the right of a display when the alarm limit for that display has been changed to a value that is not a power -on default value. If the new value is saved as a power -on default value, the decimal point will be removed. By using the service functions, changes can be saved as power -on default values.

Factory Default Settings Factory default settings are divided into two groups, adult and neonate. Default settings may be changed to institutional default settings; refer to Setting Institutional Defaults (Sample) on page 47.

Neonate Default Settings Table 2: Neonate Alarm Limit Factory Defaults Monitoring Mode

Setting

Note: Bold entries are different than adult default settings. %SpO2 Lower Alarm Limit

N-595

80%

35


Table 2: Neonate Alarm Limit Factory Defaults Monitoring Mode

Setting

Note: Bold entries are different than adult default settings. %SpO2 Upper Alarm Limit

95%

Alarm Silence Duration

60 seconds

Alarm Silence Duration Off Setting

Disabled

Alarm Silence Reminder

Enabled

Alarm Volume

7 of 10

Data Port Baud Rate

9600

Data Port Protocol

ASCII

Display Contrast

Midrange

Display Format

Pleth

O XI M AX Sensor Event Record Type

SpO 2

Language

English

Nurse Call Polarity

36

Normally Low

Pulse Beep Volume

4 of 10

Pulse Rate Lower Alarm Limit

90 beats per minute

Pulse Rate Upper Alarm Limit

190 beats per minute

SatSeconds

Off

Sensor Adjust Enabled

Yes

Trend Display

%SpO2


Adult Default Settings Table 3: Adult Alarm Factory Defaults Monitoring Mode

Setting

Note: Bold entries are different than neonate default settings. %SpO2 Lower Alarm Limit

85%

%SpO2 Upper Alarm Limit

100%

Alarm Silence Duration Off Setting

Disabled

Alarm Silence Duration

60 seconds

Alarm Silence Reminder

Enabled

Alarm Volume

7 of 10

Data Port Baud Rate

9600

Data Port Protocol

ASCII

Display Contrast

Midrange

Display Format

Pleth

O XI M AX Sensor Event Record Type

SpO 2

Language

English

Nurse Call Polarity

Normally Low

Pulse Beep Volume

4 of 10

Pulse Rate Lower Alarm Limit

40 beats per minute

inclusive

170 beats per minute

SatSeconds

Off

Sensor Adjust Enabled

Yes

Trend Display

%SpO2

Service Functions Service functions can be used to select institutional defaults and to access information about the patient or instrument. Only a Nellcor Customer Service Engineer should access some of the items available through the service functions. These items will be noted in the text that follows.

N-595

37


Accessing the Service Functions All service functions are accessible when the DOC -10 pulse oximetry cable is disconnected from the monitor. Disconnect the O XI M AX sensor from the MC -10 extension cable; or, disconnect the MC -10 extension cable from the instrument. 1. Turn on the N-595 by pressing the ON/STANDBY button.

2. Wait for monitor power -on self -test to complete.

LIGHT

3. Simultaneously press and hold the LIGHT softkey and the CONTRAST button until the service softkeys are displayed.

Note:

The service function is only accessible from the main menu display. The menu bar will change to the headings listed below.

Note:

If the above step is performed with a pulse oximetry cable connected, only the PARAM and EXIT softkeys appear on the screen.

The following list can be used as a quick reference showing how to reach different softkey functions. Items reached through the PARAM softkey can be accessed during normal operation. Functions provided by the PRINT and NEXT softkeys cannot be accessed when a pulse oximetry cable is connected to the instrument. Each of the various functions is described in the text that follows.

PARAM (Service Menu) RESET RESET DEFAULTS? YES (resets parameters to factory defaults, sounds three tones to indicate that defaults have reset) NO (back to Service menu)

-

SAVE SAVE DEFAULTS? YES (saves parameters as default settings, sounds three tones to

-

NO (back to Service menu) SENSOR (enables/disables sensor trend writing on rewritable sensors) BACK (back to Service menu)

indicate that defaults have been saved)

38


-

-

EXIT (back to Main menu, sounds three tones to indicate that defaults

have reset) BACK (back to Service menu)

PRINT TREND ERRLOG INSTAT INFO NEXT DOWNLD (for downloading monitor software) ALARMS SELECT ALLOW OFF? (Allows alarms to be turned off) (up/down buttons -

select Yes/No) OFF REMINDER? (enables/disables Alarm Off reminder) (up/ down buttons select Yes/No) BACK (back to Service menu) NEXT (back to Service menu) EXIT (back to Main menu)

Exit Softkey EXIT

The EXIT softkey returns the monitor to the Main menu.

Next Softkey NEXT

N-595

There are not enough softkeys to display all of the options that are available at some levels of the menu. Pressing the NEXT softkey allows you to view additional options available at a given menu level.

39


Param Softkey Menu PARAM

When the PARAM softkey is pressed, the function of the softkeys changes as shown below. These options can be accessed without disconnecting the pulse oximetry cable from the instrument. .

Reset Softkey RESET

The RESET softkey can be used if any settings stored in memory have been changed from factory default values. If YES is pressed, the instrument sounds three tones and the settings return to factory default values. When NO is pressed, no changes are made to the settings stored in memory.

Save Softkey SAVE

When adjustable values are changed from factory default, the SAVE softkey can be used to preserve the settings as institutional power -on default values. Pressing YES stores the current settings in memory. The instrument sounds three tones indicating that the changes have been saved as power -on default values. The new saved values will continue to be used through power -on and off cycles until they are changed and saved again, or until they are reset. If NO is pressed, the changed values will not be saved. Note:

An invalid tone indicates that a parameter value cannot be saved as a power -on default. See Power-On Settings on page 35. Along with the invalid tone, a message will be displayed indicating which parameter could not be saved as a power -on default.

Sensor Softkey SENSOR The SENSOR softkey enables/disables the Sensor Event Record function.

40


Print Softkey Menu PRINT

Accessing the PRINT softkey makes four printouts available. See Data Port Interface Protocol on page 105, for information about how to make connections to the data port and how data is presented in a printout. The appropriate printout can be selected by pressing the corresponding softkey. The softkey configuration that appears after the PRINT softkey has been pressed is shown below.

Up to 48 hours of trend data can be viewed on the printouts described below. When the monitor is turned on, trend data is recorded every 4 seconds. As an example, an instrument that is used 6 hours a week would take approximately 8 weeks to fill its memory. Note:

N-595

The two -letter codes and the symbols that occur in the printout are described in Table 19 on page 120.

41


Trend Softkey

TREND

A Trend printout will include all data recorded for up to 48 hours of monitoring since the last Delete Trends was performed. A new trend point is recorded every 4 seconds. The figure below is an example of a Trend printout.

The first row of the printout includes information about the type of instrument delivering the information, the software level, type of printout, and alarm parameters. The second line lists the headings for the columns. These lines are printed out every 25 lines, or when a change to an alarm limit is made. Patient data is represented with a date and time stamp for the data. In the example above, the “- - -” means that an O XI M AX sensor was connected but the signal quality of the data being received was too low for the monitor to interpret the data. Patient data that is outside of an alarm limit is marked with an asterisk (*). At the end of the printout “Output Complete” will be printed. This indicates that there was no corruption of data. If the Output Complete statement is not printed at the end of the printout, the data must be considered invalid.

ERRLOG Softkey This softkey is for Nellcor’s Customer Service Engineering Only. ERRLOG A list of all the errors recorded in memory can be obtained by pressing the

ERRLOG softkey. The first line lists the type of instrument producing the printout, software level, type of printout, and the time of the printout. The second

42


line of the printout consists of column headings. If nothing prints out, there have been no errors. An example of an Errlog printout is shown below.

INSTAT Softkey This softkey is for Nellcor’s Customer Service Engineering Only. DELETE

The DELETE softkey, described in the operator's manual, allows the user to delete the most recent trend data. The current trend data, along with the deleted trends, can be retrieved from the instrument through an Instat printout. The oldest deleted trend is Trend 01 on the Instat printout. If a Trend 01 already exists in memory from an earlier Delete, the next deleted trend will become Trend 02. Every time DELETE is pressed, the number of existing trends will increase by 1. The current trend will have the largest trend number. In the Instat printout below, line one is for instrument type, software revision level, type of printout, and alarm parameter settings. The second line contains the column headings. A trend point is recorded for every 4 seconds of instrument operation. Up to 48 hours of instrument operation data can be recorded. If the final line on the printout shows “Output Complete,” then the data has been successfully transmitted with no corruption. If there is no “Output Complete” line printed, the data should be considered invalid.

N-595

43


INFO Softkey This softkey is for Nellcor’s Customer Service Engineering Only. INFO

44

Pressing the INFO softkey produces a single line printout of instrument information as illustrated below. The data presented in the printout, going from left to right, is the instrument type (N -595), software version level, type of printout (INFO), CRC (Cyclic Redundancy Check) number, and ratio of current operating time to total operating time (the ra tio itself has no units of measure).


Next Softkey Menu NEXT

Additional options can be accessed from the main Service Functions menu by pressing the NEXT softkey. When NEXT is pressed, the softkeys change to the functions shown below.

DOWNLD Softkey DOWNLD

When the DOWNLD softkey is selected, the instrument will display the revision of the Boot Code. To exit DOWNLD, cycle power to the instrument by pressing the ON/STANDBY button. Consult the Directions for Use (DFU) provided with any downloads or upgrades to the FLASH firmware. When downloading new software via the data port, the baud rate is set at 19,200.

ALARMS Softkey ALARMS Pressing the ALARMS softkey can change characteristics of the audible alarm.

When the ALARMS softkey is pressed, the softkey's functions change as shown below.

SELECT Softkey SELECT

N-595

The SELECT softkey is used to select what function of the audible alarm is going to be changed. A box can be cycled between two choices: ALLOW OFF and OFF REMINDER.

45


Use the following procedure to select and set the monitor’s ALLOW OFF and OFF REMINDER:

sensor from the monitor. 1. Disconnect the O XI M AX Note:

2. Simultaneously press the LIGHT softkey and the CONTRAST softkey until the menu bar changes to the softkey headings shown below.

LIGHT

NEXT


ALARMS 4.

SELECT

46

If the O XI M AX sensor is not disconnected, the only softkeys on the monitor’s screen will be PARAM and EXIT.

Press the ALARMS softkey.

5. Use the SELECT softkey to toggle between ALLOW OFF? and OFF REMINDER?.


6. Use the ADJUST UP or ADJUST DOWN button to change selected parameter.

BACK

7. Press the BACK softkey.

When ALLOW OFF is selected, a choice is given between allowing an audible Alarm Off or disabling the audible alarm OFF. Pressing the ADJUST UP or ADJUST DOWN button cycles between YES and NO. If YES is selected, the operator has the option of selecting AUDIBLE ALARM OFF. If NO is selected, the operator is not given the option of selecting AUDIBLE ALARM OFF as an alarm silence duration choice. If the audible alarm is set to Off, a reminder tone can be sounded every 3 minutes to notify the user of this condition. The ADJUST UP and ADJUST DOWN buttons can be used to change the choice from YES to NO. Selecting YES enables the Reminder. Selecting NO disables the Reminder when the audible alarm is set to Off.

Setting Institutional Defaults (Sample) Power -up default values may be changed to institutional power -up default values. Set the desired limits in the normal operation mode and you will set the institutional defaults in the monitor’s service mode. The following default values may be set:

N-595

•

Alarm Silence Duration (30, 60, 90, 120 seconds)

•

Alarms (Allow Off - Yes/No)

•

Off Reminder (Yes/No)

•

Alarm Volume (1 to 10)

•

Sensor Event Record Type (SpO2, SpO2 + BPM, Default)

•

Nurse Call Priority RS-232 (normally high, normally low)

•

Pulse Beep Volume (0 to 10)

•

Pulse Rate Upper Alarm Limit (lower limit plus 1 to 250 bpm)

•

Pulse Rate Lower Alarm Limit (20 bpm to upper limit minus 1)

•

SatSeconds (OFF, 10, 25, 50, 100)

•

Sensor Adjust Enable (Yes/No)

•

Data Port Baud Rate (2400, 9600, 19200)

47


•

Data Port Mode (ASCII, OXINET, CLINICAL, GRAPH, AGILENT [Agilent HP monitor], SPACELB [SpaceLabs monitor], MARQ [GE Marquette monitor], DATEX [Datex -Ohmeda AS/3 monitor]). Available selections depend on the software installed in your N -595.

•

SpO2 Upper Alarm Limit (lower limit plus 1 to 100%)

•

SpO2 Lower Limit (80% to upper limit m inus 1)

Use the following procedure to set institutional defaults. 1. Disconnect the O XI M AX sensor from monitor. Note:

If the O XI M AX sensor is not disconnected, the only softkeys on the screen will be PARAM and EXIT.

2. Set desired parameters to the institutional values. Refer to the N -595 Operator’s Manual for the procedures to set the values.

3. Simultaneously press the LIGHT softkey and the CONTRAST button until the menu bar changes to the softkey headings shown below.

LIGHT

PARAM

48

4. Press the PARAM softkey.


SAVE

YES

N-595

5. Press the SAVE softkey.

6. Press the YES softkey. The monitor will sound three beeps indicating that defaults have been saved.

49

Troubleshooting

Introduction This section explains how to troubleshoot the N -595 if problems arise. Tables list possible monitor difficulties, along with probable causes, and recommended actions to correct the difficulty.

How To Use This Section Use this section in conjunction with Performance Verification on page 11, and Spare Parts on page 81. To remove and replace a part you suspect is defective, follow the instructions in Disassembly Guide on page 63. The circuit analysis section in the Technical Discussion on page 125, offers information on how the monitor functions.

Who Should Perform Repairs Only qualified service personnel should open the monitor housing, remove and replace components, or make adjustments. If your medical facility does not have qualified service personnel, contact Nellcor’s Technical Services or your local Nellcor representative.

Troubleshooting Guide Problems with the N -595 are categorized in Table 4. Refer to the paragraph indicated for further troubleshooting instructions. Note:

N-595

Taking the recommended actions discussed in this section will correct the majority of problems you may encounter. However, problems not covered here can be resolved by calling Nellcor’s Technical Services or your local Nellcor representative.

51

Troubleshooting

Table 4: Problem Categories Problem Area

Refer To

1. Power

Power on page 53

•

No power- up on AC and/or DC

•

Fails power- on self -test

•

Powers down without apparent cause

2. Buttons •

Monitor does not respond properly to buttons being pressed

3. Display/Alarms •

Display does not respond properly

•

Alarms and other tones do not sound properly or are generated without apparent cause

4. Operational Performance •

Displays appear to be operational, but monitor shows no readings

•

Suspect readings

5. Data Port •

Buttons on page 54

Display/Alarms on page 55

Operational Performance on page 56

Data Port on page 57

N-595 data port not functioning properly

All of the problem areas in Table 4 on page 52 are discussed in the following paragraphs.

52

Troubleshooting

Power Power problems are related to AC and/or DC. Table 5 lists recommended actions to power problems.

Table 5: Power Problems Condition Battery Low indicator lights steadily while N-595 is connected to AC and battery is not discharged.

N-595

Recommended Action •

Ensure that the N-595 is plugged into an operational AC outlet and the AC indicator is on.

•

Check the fuses. The fuses are located in the Power Entry Module as indicated in Fuse Replacement on page 64. Replace if necessary.

•

Open the monitor as described in Monitor Disassembly on page 65. Verify the power supply's output to the battery while on AC. Disconnect the battery leads from the battery and connect a DVM to them. The voltage measured should be 6.65 to 6.95 VDC and the current should be 320 to 480 mA. Replace power supply if above values are not met.

•

Check the harness connection from the bottom enclosure to the User Interface PCB, as instructed in User Interface PCB Removal/Replacement on page 76. If the connection is good, replace the User Interface PCB.

The N-595 generates an error code when disconnected from AC power.

The battery may be discharged. To recharge the battery, refer to Battery Charge on page 12. The monitor may be used with a less than fully charged battery but with a corresponding decrease in operating time from that charge. The battery may be defective.

Battery Low indicator on during DC operation and an alarm is sounding.

There are 15 or fewer minutes of usable charge left on the N-595 battery before the instrument shuts off. At this point, if possible, cease use of the N -595 on battery power, connect it to an AC source and allow it to recharge (approximately 14 hours). The N -595 may continue to be used while it is recharging. (A full recharge of the battery while the monitor is being used takes 18 hours.)

53

Troubleshooting

Table 5: Power Problems Condition Battery does not charge.


Replace battery if it is more than 2 years old.

•

If the battery fails to hold a charge, replace the battery as indicated in Battery Replacement on page 67.

•

Open the monitor as described in Monitor Disassembly on page 65. Verify the power supply's output to the battery while on AC. Disconnect the battery leads from the power supply and connect a DVM to them. The voltage measured should be 6.8 VDC ± 0.15 VDC and the current should be 400 mA ± 80 mA. Replace power supply if above values are not met.

Buttons Table 6 lists symptoms of problems relating to non -responsive buttons and recommended actions. If the action requires replacement of a PCB, refer to Disassembly Guide on page 63.

Table 6: Button Problems Symptom The N-595 turns on but does not respond to some or all of the buttons.

54


Replace the User Interface PCB. See User Interface PCB Removal/Replacement on page 76.

•

If the buttons still do not work, replace the Top case assembly. See Top Case Assembly Removal/ Replacement on page 80.

Troubleshooting

Display/Alarms Table 7 lists symptoms of problems relating to non -functioning displays and audible tones or alarms, and re commended actions. If the action requires replacement of a PCB or module, refer to Disassembly Guide on page 63.

Table 7: Display/Alarms Problems Symptom Display values are missing or erratic.

Display pixels do not light.

Alarm sounds for no apparent reason.

Alarm does not sound.

N-595


If the OXIMAX sensor is connected, replace the pulse oximetry cable.

•

If the condition persists, replace the OXIMAX sensor.

•

If the condition still persists, replace the User Interface printed circuit board. See User Interface PCB Removal/Replacement on page 76.

•

Check the connection between the User Interface PCB and the Display PCB.

•

If the condition does not change, replace the Display PCB. See Display PCB Removal/ Replacement on page 74.

•

If the condition still persists, replace the User Interface PCB. See User Interface PCB Removal/ Replacement on page 76.

•

Moisture or spilled liquids can cause an alarm to sound. Allow the monitor to dry thoroughly before using.

•

If the condition persists, replace the User Interface PCB. See User Interface PCB Removal/ Replacement on page 76.

•

Check alarm silence status.

•

Check speaker connection.

•

Replace the speaker as described in Alarm Speaker Removal/Replacement on page 78.

•

If the condition persists, replace the User Interface PCB. See User Interface PCB Removal/ Replacement on page 76.

55

Troubleshooting

Operational Performance Table 8 lists symptoms of problems relating to operational performance (no error codes displayed) and recommended actions. If the action requires replacement of a PCB or module, refer to Disassembly Guide on page 63.

Table 8: Operational Performance Problems Symptom

56

Recommended Action

The Pulse Amplitude indicator seems to indicate a pulse, but the digital displays show zeroes.

•

The OXIMAX sensor may be damaged; replace it.

•

If the condition still persists, replace the User Interface PCB. See User Interface PCB Removal/Replacement on page 76.

SpO2 or Pulse values change rapidly; Pulse Amplitude indicator is erratic.

•

The OXIMAX sensor may be damp or may have been reused too many times. Replace it.

•

An electrosurgical unit (ESU) may be interfering with performance: -

Move the N-595 and its cables and OXIAX sensors as far from the ESU as possible.

-

Plug the N-595 power supply and the ESU into different AC circuits.

-

Move the ESU ground pad as close to the surgical site as possible and as far away from the OXIMAX sensor as possible.

•

Verify the performance with the procedures detailed in Performance Verification on page 11.

•

If the condition still persists, replace the User Interface PCB. See User Interface PCB Removal/Replacement on page 76.

Troubleshooting

Data Port Table 9 lists symptoms of problems relating to the data port and recommended actions. If the action requires replacement of the User Interface PCB, refer to Disassembly Guide on page 63.

Table 9: Data Port Problems Symptom No printout is being received.

The RS-232 nurse call is not working.


Confirm that printer is working through an alternate means.

•

The monitor's baud rate does not match the printer. Change the baud rate of the monitor following instructions in Configuring the Data Port on page 105.

•


•

Verify that connections are made between pins 5 (GND) and 11 (nurse call) of the data port (Figure 16 on page 114).

•

Verify that the output voltage between ground pin 5 and pin 11 is -5 to -12 VDC (no alarm) and +5 to +12 VDC (during alarm) (Figure 16 on page 114).

•


Error Codes An error code is displayed when the N -595 detects a non -correctable failure. Table 10 provides a list of error codes for the N -595. When one of the following errors occurs:

N-595

•

the N-595 sound a low priority alarm that cannot be silenced except by power -down

•

measurements stop

•

red “EEE” is displayed in the %SpO 2 display area

•

red error code is displayed in the left numeric display

•

cycling the power clears the displayed error code

57

Troubleshooting

Table 10 provides a list of error codes for the N -595.

Table 10: Error Codes

58

Error Code

Meaning

1

SpO2 front end RAM error

2

SpO2 front end ROM/code integrity error.

3

SpO2 front end reported a bad CRC

4

SpO2 front end reported FSP message not allowed

5

SpO2 front end reported illegal value sent in FSP messageSpO 2 front end

6

SpO2 front end reports calibration (offset) failure

9

SpO2 front end reported syntax error in FSP message

10

Over-current limit in SpO2 front end has tripped

11

SpO2 front end reports incorrect system voltage

12

SpO2 front end reports other hardware problem

14

SpO2 front end reports communication channel overflow

16

SpO2 front end reports watch dog time out

17

SpO2 front end reports that sensor appears defective

18

SpO2 front end reports internal register appears modified from expected value

19

SpO2 front end reports signal out -of -range

48

SpO2 front end reports spurious interrupt

49

SpO2 front end reports internal buffer overflow

50

SpO2 front end reports intermittent error

51

SpO2 front end reports digital communications error

52

SpO2 front end reports warmer error

53

Front end data not received

256

SpO2 back end reports beginning of packet missing

257

SpO2 back end reports packet start ID (SID) missing

258

SpO2 back end reports packet length error

259

SpO2 back end reports message length error

260

SpO2 back end reports packet contains unsupported Key

261

SpO2 back end reports packet CRC error

262

SpO2 back end reports end of packet missing

263

SpO2 back end reports packet contains undefined key

Troubleshooting

Table 10: Error Codes

N-595

Error Code

Meaning

264

SpO2 back end reports corrupted variable

265

SpO2 back end reports memory overflow

266

SpO2 back end reports bad pointer

267

SpO2 back end reports parameter value out -of -range

268

SpO2 back end reports reset detected

269

SpO2 back end reports unexpected value

270

SpO2 back end reports time-out

271

SpO2 back end reports not ready/not initialized

272

SpO2 back end reports double fault

273

SpO2 back end reports date out -of -range error

274

SpO2 back end reports incompatible software version

275

SpO2 back end reports incorrect registration number

276

SpO2 back end reports sensor read failure

277

SpO2 back end reports sensor signature verification fails

278

SpO2 back end reports warmed sensor temperature set point failure

279

SpO2 back end reports warmed sensor/SpO 2 front end incompatible

280

SpO2 back end reports does not support feature required by sensor

281

SpO2 back end reports overflow/underflow

282

SpO2 back end reports sensor activation failure

512

General failure of UIF Module generic post

512

Dead battery/Missing battery

514

Real time clock is non-operational

515

Application code is not present in the flash

516

Invalid flash type

517

Serial clock line is not toggling or is toggling at an incorrect rate

518

Application program is corrupt

519

Invalid FE102 version

520

Error in the start up sequence

521

OS multitasking service failure

522

A state machine has received an unknown state transition

59

Troubleshooting

Table 10: Error Codes Error Code

Meaning

523

The operation just attempted was not completed successfully - for example, Institutional Defaults could not be reset

524

An unexpected value was received - for example, an out-of -range parameter was passed to a function

525

EEPROM CRC failure

526

SpO2 module not responded

527

Institutional parameters lost - e.g. for UIF: Institutional EEPROM section CRC corrupt

528

Current settings lost - e.g. for UIF: Institutional EEPROM section CRC corrupt

529

Critical low battery

530

Low battery error

531

External watchdog failure

532

Power PC watchdog failure

533

Boot NVROM uninitialized error

534

Failed CRC check of application code in flash

535

Failed periodic ram CRC check on application code running in RAM

562

SpO2 front end reset

563

SpO2 reported error

564

Clinical mode was exited after input was received

565

Communication failures between software modules

566

Excessive resets before UIF runs

567

An unexpected interrupt has been asserted

568

General failure in UIF module generic post

569

BOOT application program is corrupt - CRC does not match

570

RTC was restarted

574

Excessive restarts within 1 minute

Other Messages In addition to the error codes listed in Table 10 on page 58, the following messages may be encountered:

60

Troubleshooting

Adjust Contrast Up, Down When the user attempts to adjust the contrast of the display by pressing or pressing and holding the CONTRAST button.

Clock Settings Lost If the N-595 detects that the real time clock has stopped running. This will usually occur when both battery and AC power are lost.

Data In O XI M AX Sensor When an O XI M AX sensor containing sensor event record data is connected to the N-595.

Data Type: SpO 2 When a blank O XI M AX sensor is connected to a monitor with Data Type set to SpO2.

Data Type: Event/SpO 2+BPM sensor is connected to a monitor with Data Type set to When a blank O XI M AX SpO2 + BPM.

Defaults Lost If the N-595 detects that the power -on settings have been lost.

Delete Trend? When the user attempts to delete trend data from memory by pressing the DELETE softkey.

Invalid Blip Vol When the user attempts to save current settings as power -on defaults and the blip volume is 0.

N-595

61

Troubleshooting

Invalid Silence Duration An attempt has been made to set the alarm silence duration power -on default to “OFF.” The power -on default cannot be set to “OFF.”

Invalid SpO2 Limit An attempt has been made to set either the upper or lower alarm limit power -on default below 80. The power -on default cannot be set below 80.

Low Battery When the instrument is on battery power and the battery becomes low.

Reading Trends The monitor is gathering trend information for display.

Reset Defaults? When the user attempts to reset to factory defaults by pressing the RESET softkey on the Parameters menu, the monitor displays the options YES and NO.

Save Defaults? When the user attempts to save the current settings as the power -on defaults by pressing the SAVE softkey on the Parameters menu, the monitor displays the options YES and NO.

Sensor Disconnected The O XI M AX sensor has disconnected from the pulse oximetry cable, the cable has disconnected from the monitor, or the O XI M AX sensor/cable wiring is defective. Press the ALARM SILENCE button to silence the alarm. Check the connections. If this does not correct the problem, replace the O XI M AX sensor and/or cable.

Settings Lost Settings lost is displayed when the N -595 detects that the current settings have been lost.

62

Disassembly Guide

Introduction The N-595 can be disassembled down to all major component parts, including: •

PCBs

•

battery

•

cables

•

chassis enclosures

The following tools are required: •

small, Phillips-head screwdriver

•

medium, Phillips-head screwdriver

•

small blade screwdriver

•

needle-nose pliers or 1/4 -inch socket

•

torque wrench, 10 inch- pounds (1.13 Newton -meters)

WARNING: Before attempting to open or disassemble the N-595, disconnect the power cord from the N-595.

Caution: Observe ESD (electrostatic discharge) precautions when working within the unit.

Note:

Some spare parts have a business reply card attached. When you receive these spare parts, please fill out and return the card.

Replacement Level Supported The replacement level supported for this product is to the printed circuit board (PCB) and major subassembly level. Once you isolate a suspected PCB, follow the procedures in Disassembly Guide on page 63, to replace the PCB with a known good PCB. Check to see if the trouble symptom disappears and that the monitor passes all performance tests. If the trouble symptom persists, swap back the replacement PCB with the suspected malfunctioning PCB (the original PCB

N-595

63

Disassembly Guide

that was installed when you started troubleshooting) and continue troubleshooting as directed in this section.

Prior to Disassembly 1. Turn the N-595 off by pressing the ON/STANDBY button.

2. Disconnect the monitor from the AC power source.

Fuse Replacement 1. Complete the procedure in paragraph Prior to Disassembly on page 64.

2. Disconnect the power cord from the back of the monitor.

3. Remove the fuse drawer from the power module by pressing down on the tab in the center and pulling out as shown in Figure 4.

Figure 4: Fuse Removal 4. Put two new, 5 x 20-mm, slow blow, 0.5-amp, 250-volt fuses in the drawer and reinsert the drawer in the power entry module. 64

Disassembly Guide

Monitor Disassembly 1. Complete the procedure in paragraph Prior to Disassembly on page 64.

2. Set the N-595 upside down, as shown in Figure 5.

Figure 5: Corner Screws 3. Remove the monitor’s four corner screws.

Caution: Observe ESD (electrostatic discharge) precautions when disassembling and reassembling the N-595 and when handling any of the components of the N-595.

4. Separate the monitor’s top case from the bottom case of the monitor, being careful not to stress the wire harnesses between the cases. Place the two halves of the monitor on the table as shown in Figure 6.

5. Disconnect the monitor’s Power Supply harness from J16 on the User Interface PCB.

N-595

65

Disassembly Guide

Figure 6: Separating Case Halves

Monitor Assembly 1. Connect the monitor’s Power Supply to J16 on the User Interface PCB.

2. Place the monitor’s top case over the bottom case, being careful to align the Display PCB, Power Entry Module, and the fan with the slots in the case halves.

Caution: When reassembling the N-595, tighten the screws that hold the cases together to a maximum of 10 inch-pounds. Over-tightening could strip out the screw holes in the top case, rendering it unusable.

3. Install the four corner screws.

66

Disassembly Guide

Battery Replacement Removal 1. Follow the procedure in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Remove the two screws from the battery bracket and lift the battery out of the bottom case as shown in Figure 7.

3. Be sure to note the polarity of the leads. Use needle -nose pliers to disconnect the leads from the battery.

Figure 7: Removing the Battery 4. The lead-acid battery is recyclable. Do not dispose of the battery by placing it in the regular trash. Dispose of the battery in accordance with local guidelines or return it to Nellcor’s Technical Services for disposal.

N-595

67

Disassembly Guide

Replacement 5. Connect Connect the leads leads to the the battery battery.. The red wire wire connects connects to to the positi positive ve terminal, and the black wire connects to the negative terminal.

6. Insert Insert the new batter battery y into the the bottom bottom case with with the the negative negative terminal terminal towards towards the outside of the monitor. monitor. Install the bracket and grounding lead with the two screws.

7. Comple Complete te the the proc procedu edure re in in parag paragrap raph h Monitor Assembly on page page 66.

8. Turn Turn the the monitor monitor on and and verify verify proper proper operatio operation. n.

Power Entry Module (PEM) Removal/Replacement Removal/Replacement Removal 1. Follow Follow the proced procedure ure in para paragra graphs phs Prior to Disassembly on page page 64, and and Monitor Disassembly on page page 65.

2. Push the the top top of the the Power Power Entry Entry Module Module (PEM) (PEM) in from from the outsid outsidee of the case, and lift up.

68

Disassembly Guide

3. Use needle-nose pliers to disconnect the leads from the PEM (see Figure 8).

Figure 8: Power Entry Entry Module

Replacement 4. Reconnect Reconnect the three power supply supply leads leads as indica indicated ted in Table Table 11 on page page 71.

5. Install Install the PEM in the the bottom bottom case case with the fuse fuse drawer drawer facing facing down. down. A tab tab in the bottom case holds the PEM in place. Insert the bottom wing of the PEM between the tab and the internal edge of the sidewall of the bottom case. Push the PEM down and towards the outside of the monitor until it clicks into place.

6. Comple Complete te the the proc procedu edure re in in parag paragrap raph h Monitor Assembly on page page 66.

N-595

69

Disassembly Guide

Power Supply Removal/Replace Removal/Replacement ment Removal 1. Follow Follow the proced procedure ure in para paragra graphs phs Prior to Disassembly on page page 64, and and page 65. Monitor Disassembly on page

2. Push the the top top of the the Power Power Entry Entry Module Module (PEM) (PEM) in from from the outsid outsidee of the case, and lift up.

3. Use needle-nose pliers to disconnect the leads leads from the PEM (see (see Figure 8).

4. Disconnect Disconnect the fan fan wire harness harness from J1 J1 on the the Power Supply Supply PCB (see (see Figure 9).

5. Use a 10-mm wrench to disconnect the Power Supply ground lead from the equipotential terminal (see (see Figure 8).

6. Remove Remove the seven seven screws screws shown shown in Figure Figure 9.

70

Disassembly Guide

7. Lift the Power Supply out of the bottom case.

Figure 9: Power Supply

Replacement 8. Reconnect the leads to the PEM following the instructions in Table 11, and Figure 8.

Table 11: Power Supply Lead Connections Wire Color / Label

Connect To

Green & Yellow

Equipotential Lug

Brown/Labeled “L”

“L” on the Power Entry Module

Blue/Labeled “N”

“N” on the Power Entry Module

Red/Labeled “+”

Positive Battery Terminal

Black/Labeled “-”

Negative Battery Terminal

9. Place the Power Supply in the bottom case.

N-595

71

Disassembly Guide

Caution: When installing the Power Supply, tighten the seven screws to a maximum of 4 inch-pounds. Over-tightening could strip out the screw holes in the bottom case, rendering it unusable.

10. Install the seven screws in the Power Supply and tighten.

11. Connect the fan harness to J1 on the Power Supply.

12. Install the PEM in the bottom case with the fuse drawer facing down. A tab in the bottom case holds the PEM in place. Insert the bottom wing of the PEM between the tab and the internal edge of the sidewall of the bottom case. Push the PEM down and towards the outside of the monitor until it clicks into place.

13. Complete the replacement procedure in paragraph Monitor Assembly on page 66.

Cooling Fan Removal/Replacement Removal 1. Complete the procedure in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Disconnect the fan wire harness from J1 on the Power Supply PCB (see Figure 10).

72

Disassembly Guide

3. Lift the cooling fan from the slots in the bottom case.

Figure 10: Cooling Fan

Replacement 4. Connect the cooling fan wire harness to J1 on the Power Supply PCB.

5. Insert the cooling fan into the slots in the bottom case with the padded sides on the top and bottom and the fan's harness to the handle side of the case.

6. Complete procedure Monitor Assembly on page 66.

N-595

73

Disassembly Guide

Display PCB Removal/Replacement Removal WARNING: The LCD panel contains toxic chemicals. Do not ingest chemicals from a broken LCD panel.

1. Complete the procedures in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Disconnect the CCFL harness from J5 of the User Interface PCB. See Figure 11.

3. Use a small blade screwdriver to pry the clip from either edge of J13, then disconnect the Display PCB ribbon cable from the connector.

4. Separate the adhesive connection of the double -sided tape and lift the Display PCB up to remove it from the top case.

74

Disassembly Guide

5. Remove and discard the used double-sided tape.

Figure 11: Display PCB

Replacement 6. Install new double-sided tape as shown in Figure 11.

7. Slide the Display PCB into the grooves in the top case. Check to make sure the Display PCB is firmly seated in the top case. Apply pressure between the top case and the display PCB to make good contact with the double -sided tape.

8. Connect the CCFL wire harness with two white wires to J5 of the User Interface PCB.

N-595

75

Disassembly Guide

9. Connect the Display PCB ribbon cable to J13 of the User Interface PCB. Install the clip over the J5 connector.

10. Complete the procedure in paragraph Monitor Assembly on page 66.

User Interface PCB Removal/Replacement Removal 1. Complete the procedures in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Disconnect the CCFL harness (two white wires) from J5 of the User Interface PCB. See Figure 11.

3. Use a small blade screwdriver to pry the clip from either edge of J13, then disconnect the Display PCB ribbon cable from the connector.

4. Disconnect the keypad ribbon cable from connector J17 on the User Interface PCB (Figure 11). Lift up on the ribbon cable's outer shell until it clicks, then remove the cable from the connector.

5. Disconnect the speaker cable from J12 on the User Interface PCB.

6. Remove the five screws in the User Interface PCB (Figure 12 on page 77).

76

Disassembly Guide

7. Remove the User Interface PCB from the top case.

Figure 12: User Interface PCB

Replacement Caution: When installing the User Interface PCB, hand-tighten the five screws to a maximum of 4 inch-pounds. Over-tightening could strip out the screw holes in the top case, rendering it unusable.

8. Place the User Interface PCB in the top case.

9. Install the five screws in the User Interface PCB.

10. Lift up on the outer shell of J17 (Figure 11) on the User Interface PCB until it clicks. Insert the keypad ribbon cable into J9 of the User Interface PCB. Slide the outer shell of J17 down until it locks in place.

N-595

77

Disassembly Guide

11. Connect the speaker cable to J12 of the User Interface PCB.

12. Connect the CCFL wire harness with two white wires to J5 of the User Interface PCB.

13. Connect the Display PCB ribbon cable to J13 of the User Interface PCB. Install the clip over the J13 connector.


Alarm Speaker Removal/Replacement Removal 1. Complete the procedures in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Disconnect the speaker wire harness from J12 on the User Interface PCB (Figure 13).

78

Disassembly Guide

3. Pull the holding clip back from the speaker and lift the speaker out of the top case.

Figure 13: Alarm Speaker

Replacement 4. Pull the holding clip back, and insert the speaker into the top case.

5. Connect speaker wire harness to J12 on the User Interface PCB.


N-595

79

Disassembly Guide

Top Case Assembly Removal/Replacement Removal 1. Complete the procedures in paragraphs Prior to Disassembly on page 64, and Monitor Disassembly on page 65.

2. Complete the procedural steps 1 through 6 in paragraph User Interface PCB Removal/Replacement on page 76.

Replacement Caution: When installing the User Interface PCB, hand-tighten the five screws to a maximum of 4 inch-pounds. Over-tightening could strip out the screw holes in the top case, rendering it unusable.

3. Complete the procedural steps 8 through 14 in paragraph User Interface PCB Removal/Replacement on page 76.

80

Spare Parts

Introduction The latest version of this manual is available on the Internet at: http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/ProductManuals.html

Spare parts are shown in Table 12. Item numbers correspond to the callout numbers in Figure 14.

Obtaining Replacement Parts Nellcor's Technical Services provides technical assistance information and replacement parts. To obtain replacement parts, contact Nellcor or your local Nellcor representative. Refer to parts by the part names and part numbers. Spare parts and accessories for the N -595 are listed on the Internet at: http://mallinckrodt.com/respiratory/resp/Serv_Supp/Apartweb/main/PartAcceMenu.html

N-595

81

Spare Parts

Parts List Table 12: Parts List Item

Description

Part Number

1

Top Case Assembly International (with Membrane Panel)

036652

1

Top Case Assembly U.S.A. (with Membrane Panel)

036657

2

Fuse Drawer

691500

3

Fuses

691032

4

Power Entry Module

691499

5

Cooling Fan

035469

6

Power Supply

SP036603/UT036603

7

Display PCB

SP902251

8

Battery

640119

9

Battery Bracket

035307

10

User Interface PCB

SP062315/UT062315

...

Alarm Speaker (not shown)

036605

...

Rubber Feet (not shown)

4-003818-00

...

Power Cord U.S.A. (not shown)

071505

...

Power Cord International (not shown)

901862

...

Power Cord U.K. (not shown)

901863

...

Tilt Stand (not shown)

891340

...

GCX Mounting Kit (not shown)

035434

Figure 14 shows the N -595 expanded view with numbers relating to the spare parts list.

82

Spare Parts

Figure 14: Exploded View

N-595

83

Packing for Shipment

Introduction To ship the monitor for any reason, follow the instructions in this section.

Returning the N-595 Contact Nellcor’s Technical Services Department or your local Nellcor representative for shipping instructions, including a Returned Goods Authorization (RGA) number. Unless otherwise instructed by Nellcor's Technical Services Department, it is not necessary to return the O XI M AX sensor or other accessory items with the monitor. Pack the N -595 in its original shipping carton. If the original carton is not available, use a suitable carton with appropriate packing material to protect it during shipping. Return the N-595 by any shipping method that provides proof of delivery.

General Instructions Pack the monitor carefully. Failure to follow the instructions in this section may result in loss or damage not covered by any applicable Nellcor warranty. If the original shipping carton is not available, use another suitable carton; North American customers may call Nellcor’s Technical Services Department to obtain a shipping carton. Prior to shipping the monitor, contact your supplier or local Nellcor office (Technical Services Department) for a returned goods authorization number. Mark the shipping carton and any shipping documents with the returned goods authorization (RGA) number. Return the N -595 by any method that provides proof of delivery.

Repacking in Original Carton If available, use the original carton and packing materials. See Figure 15. Pack the monitor as follows:

N-595

85


1. Place the monitor and, if necessary, accessory items in original packaging.

Figure 15: Packing 2. Place in shipping carton and seal carton with packing tape.

3. Label carton with shipping address, return address, and RGA number, if applicable.

86


Repacking in a Different Carton If the original carton is not available, use the following procedure to pack the N-595: 1. Place the monitor in a plastic bag.

2. Locate a corrugated cardboard shipping carton with a bursting strength of at least 200 pounds per square inch ( psi).

3. Fill the bottom of the carton with at least 2 inches of packing material.

4. Place the bagged unit on the layer of packing material and fill the box completely with packing material.

5. Seal the carton with packing tape.

6. Label the carton with the shipping address, return address, and RGA number, if applicable.

N-595

87

Specifications

Performance Measurement Range SpO2

1% to 100%

Pulse Rate

20 beats per minute (bpm) to 250 bpm

Perfusion Range

0.03% to 20%

Accuracy and Motion Tolerance Tolerance Saturation Without Motion - Adult1

70 to 100% ±2 digits

Without Motion - Neonate1


With Motion - Adult and Neonate2


Low Perfusion3


Pulse Rate Without Motion1, 2, 3

20 to 250 ± 3 digits

With Motion

normal physiologic range (e.g., 55 - 125 bpm) ± 5 digits

Low Perfusion3

20 to 250 ± 3 digits

1

Adult specifications are shown for O XI M N sensors with M AX MAX-A and MAX- N the N-595. Neonate specifications are shown for O XI M M AX MAX- N sensors with the N-595. Saturation accuracy will vary by the O XI M M AX sensor type. Refer to the Sensor Accuracy Grid. 2

Applicability: O XI M M AX MAX-A, MAX-AL, MAX-P, MAX-I, and MAX- N sensors. 3

Specification applies to monitor performance.

Display Update Interval 2 seconds

N-595

89

Specifications

Electrical Instrument Powe Powerr Re Requir quirem emen ents ts

rate rated d at at 108 108 to 132 132 vol volts ts AC (nom (nomin inal al 120 120 VAC VAC)) or or 200 200 to 240 volts AC (nominal 230 VAC), 20 volt/amps to be compliant with IEC 60601-1 sub-clause 10.2.2

Fuses

qty 2, 0.5 A, 250 volts, slow- blow, IEC (5 x 20 mm)

Battery The battery provides at least 2 hours of battery life when new and fully charged with no alarms, no serial data, no analog output, no nurse call output, with backlight on while using a pulse simulator set for 224 bpm, high light and low modulation. Type

Lead acid

Voltage

6 Volts DC

Recharge

14 hours with N-595 turned off 18 hours with N -595 operating

Shelf Life

2 months, new fully charged battery After 2 months storage the N-595 will run for 50% of stated battery life

Complies With

91/157/EEC

O XI M AX Sensors Wavelength and Power

The wavelength range of the light emitted are near 660 nm and 890 nm with t he energy not exceeding 15 mW.

Environmental Conditions

Operating Temperature

5 ºC to 40 ºC (41 ºF to 104 ºF)

Altitude

-390 m to 3,012 m

(-1,254 ft. to 9,882 ft.) Atmospheric Pressure

70 kPa to 106 kPa (31.3 in. Hg to 20.6 in. Hg)

90

Specifications

Operating Relative Humidity

15% to 95% non-condensing to be compliant with IEC 60601-1, sub-clause 44.5

Transport and Storage (not in shipping container) Temperature

-20 ºC to 60 ºC

(-4 ºF to 140 ºF) Altitude

-390 m to 5,574 m



Relative Humidity

15% to 95% non-condensing

Transport and Storage (in shipping container) Temperature

-20 ºC to 70 ºC

(-4 ºF to 158 ºF) Altitude

-390 m to 5,574 m



Relative Humidity

15% to 95% non-condensing

O XI M AX Sensor Power Dissipation Sensor N O XI M AX MAX

N-595

Dissipation 52.5 mW

O XI M AX MAX-I

52.5 mW

O XI M AX MAX-P

52.5 mW

O XI M AX MAX-A

52.5 mW

O XI M AX MAX-AL

52.5 mW

O XI M AX MAX-R

52.5 mW

O XI M AX Durasensor DS-100A

52.5 mW

O XI M AX OxiCliq® P

52.5 mW

O XI M AX OxiCliq N

52.5 mW

91

Specifications

O XI M AX Sensor Power Dissipation Sensor

Dissipation

O XI M AX OxiCliq I

52.5 mW

O XI M AX OxiCliq A

52.5 mW

O XI M AX Dura-Y ® D-YS

52.5 mW

O XI M AX MAX-FAST

52.5 mW

Physical Characteristics

92

Weight

5.8 lbs. (2.6 kg)

Dimensions

3.3 in. x 10.4 in. x 6.8 in. (8.4 cm x 26.4 cm x 17.3 cm)

Specifications

Compliance Item

Compliant With

Equipment classification

Safety Standards: IEC 60601-1 (same as EN60601-1), CSA 601.1, UL 2601-1, EN865, EN/IEC 60601-1-2 (second edition)

Type of protection

Class 1 (on AC power) Internally powered (on battery power)

Degree of protection

Type BF - Applied part

Mode of operation

Continuous

N-595 resistant to liquid ingress

IEC 60601-1, sub-clause 44.6 for class IPX1 Drip-Proof equipment

Degree of Safety in presence of a flammable anaesthetic

UL 2601-1, sub-clause 5.5, Not suitable

Applied sensor label t o indicate Type BF applied part

IEC 60601-1 Symbol 2 of Table DII of Appendix D

Equipotential lug symbol to indicate a potential equalization conductor

IEC 60601-1 Symbol 9 of Table DI of Appendix D

Attention symbol, consult accompanying documentation

IEC 60601-1 Symbols 14 of Table DI of Appendix D

External case made with non-conductive plastic

IEC 60601-1, sub-clause 16(a)

No holes in case top

N-595

IEC 60601 -1, sub-clause 16(b)

115/230 voltage selector switch

IEC 60601-1, sub-clause 16(f)

Rigid case

IEC 60601-1, sub-clause 21(a)

Case mechanically strong

IEC 60601-1, sub-clause 21(b)

Case handle

IEC 60601-1, sub-clause 21(c)

N-595 resistant to rough handling

IEC 60601-1, sub-clause 21.6

N-595 tip/tilt test


N-595 resistant to liquid ingress due to spills

IEC 60601-1, sub-clause 44.3 as modified by EN 865, clause 4

Environmental


Cleaning


Case surface made of non -toxic materials

IEC 60601-1, sub-clause 48

Case resistant to heat and fire

IEC 60601-1, sub-clause 59.2(b)

93

Specifications

94

Item

Compliant With

N-595 power entry module fuse holder


N-595 exterior markings

IEC 60601-1, sub-clause 6.1, 6.3, and 6.4; EN 865, clause 6

Front panel and case labeling

IEC 60878, EN 980, ISO 7000, EN 60417-1, EN 60417-2

N-595 button spacing

ISO 7250

Year of manufacture symbol

EN 980

Conductive coating and polymeric materials

UL 2601-1, clause 55

Operation during physical shock

IEC 60068-2-27 at 100 g

Operation during vibration

IEC 60068-2-6 and IEC 60068 -2-34

Electromagnetic Compatibility

IEC 60601-1, sub clause 36, IEC/EN 60601-1-2 (second edition)

Radiated and conducted emissions

EN 55011, Group 1, Class B

Harmonic emissions

IEC 61000-3-2

Voltage fluctuations/flicker emissions

IEC 61000-3-3

Electrostatic discharge immunity

EN 61000-4-2, level 3 table top equipment

Radiated radio-frequency electromagnetic field immunity

IEC 61000-4-3 at 3V/m

Electrical fast transient/burst immunity

IEC 61000-4-4, level 3

Surge immunity

IEC 61000-4-5, level 3; FDA Reviewer’s Guide

Conducted EMI susceptibility

IEC 61000-4-6 at 3 V/m

Power frequency magnetic fields

IEC 61000-4-8 at 3 V/m

Operation with line voltage variations

IEC 61000-4-11 for Table 7

Operation with electrical line voltage variations

FDA Reviewer’s Guide

Radiated magnetic field emissions

RE 101/Army/7cm of MIL-STD-461E

Specifications

Manufacturer’s Declaration WARNING: The use of accessories, O XI M AX sensors, and cables other than those specified may result in increased emission and/or decreased immunity of the N-595 pulse oximeter.

Table 13: Electromagnetic Emissions The N-595 is suitable for use in the specified electromagnetic environment. The customer and/or user of the N-595 should assure that it is used in an electromagnetic environment as described below:

Electromagnetic Environment Guidance

Emissions Test

Compliance

RF emission

Class B/ Group 1

The N-595 must emit electromagnetic energy in order to perform its intended function. Nearby electronic equipment may be affected.

Class B/ Group 1

The N-595 is suitable for use in all establishments.

CISPR 11 RF emissions CISPR 11 Harmonic emissions

Complies

IEC 61000-3-2 Voltage fluctuations/ flicker emission

Complies

IEC 61000-3-3

N-595

95

Specifications

Table 14: Electromagnetic Immunity The N-595 is suitable for use in the specified electromagnetic environment. The customer and/or user of the N-595 should assure that it is used in an electromagnetic environment as described below.

Immunity Test

IEC 60601-1-2 Test Level

Compliance Level

Electrostatic discharge (ESD)

±6 kV contact

±6 kV contact

±8 kV air

±8 kV air

Electric fast transient/burst

±2 kV for power supply lines

±2 kV for power supply lines

IEC 61000-4-4

±1 kV for input/ output lines

±1 kV for input/ output lines

Surge

±1 kV differential mode

±1 kV differential mode

±2 kV common mode

±2 kV common mode

IEC 61000-4-2

Electromagnetic Environment Guidance Floor should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30 %. Mains power quality should be that of a typical commercial and/or hospital environment

Mains power quality should be that of a typical commercial and/or hospital environment

IEC 61000-4-5

Note: UT is the AC mains voltage prior to application of the test level.

96

Specifications

Table 14: Electromagnetic Immunity The N-595 is suitable for use in the specified electromagnetic environment. The customer and/or user of the N-595 should assure that it is used in an electromagnetic environment as described below.

Immunity Test


Compliance Level

Voltage dips, short interruptions and voltage variations on power supply

<5 % UT

<5 % UT

(>95 % dip in UT) for 0.5 cycle

(>95 % dip in UT) for 0.5 cycle

40 % UT

40 % UT

(60 % dip in UT) for 5 cycles


70 % UT

70 % UT



<5 % UT

<5 % UT

(95 % dip in UT) for 5 sec.

(95 % dip in UT) for 5 sec.

3 A/m

3 A/m

IEC 61000-4-11

Power frequency (50/60 Hz) magnetic field

IEC 61000-4-8

Electromagnetic Environment Guidance Mains power quality should be that of a typical commercial and/or hospital environment. If the user of the N -595 requires continued operation during power mains interruption, it is recommended that the N-595 be powered from an uninterruptible power supply or battery.

If image distortion occurs, it may be necessary to position the N-595 further from the sources of power frequency magnetic fields or to install magnetic shielding. The power frequency magnetic field should be measured in the intended installation location to assure that it is sufficiently low.

Note: UT is the AC mains voltage prior to application of the test level.

N-595

97

Specifications

Table 15: Electromagnetic Immunity, Portable RF Equipment The N-595 is suitable for use in the specified electromagnetic environment. The customer and/or user of the N-595 should assure that it is used in an electromagnetic environment as described below:

Immunity Test


Compliance Level

Electromagnetic Environment Guidance

Portable and mobile RF communications equipment should be used no closer to any part of the N-595, including cables, than the recommended separation distance calculated from the equation appropriate for the frequency of the transmitter. Recommended Separation Distance Radiated RF IEC 61000-4-3

3 V/m 80 MHz 800 MHz

3 V/m

distance = 1.2√ Power 80 MHz to 800 MHz

3 V/m

3 V/m

distance = 2.3√ Power

800 MHz

800 MHz to 2.5 GHz

2.5 GHz Conducted RF

3 Vrms

IEC 61000-4-6

150 kHz to

3 Vrms

distance = 1.2√ Power 150 kHz to 80 MHz

80 MHz Note: Field strengths from fixed transmitters, such as base stations for radio (cellular/ cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast, and TV broadcast cannot be predicted theoretically with survey accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If t he measured field strength in the location in which the N-595 is used exceeds the applicable RF compliance level above, the N-595 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the N-595. Note: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people.

Interference may occur in the vicinity of equipment marked with the following symbol:

98

Specifications

Table 16: Recommended Separation Distances Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the N-595 (IEC 60601-1-2)

Frequency of Transmitter

26 MHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

Equation

d = 1.2√ P

d = 1.2√ P

d = 2.3√ P

Rated Maximum Output Power of Transmitter in Watts

Separation Distance in Meters



0.01

0.12

0.12

0.23

0.1

0.38

0.38

0.73

1

1.2

1.2

2.3

10

3.8

3.8

7.3

100

12

12

23

For transmitters rated at a maximum output power not listed above, the separation distance can be estimated using the equation in the corresponding column, where P is the maximum output [power rating of the transmitter in watts (W)] according to the transmitter manufacturer. Note: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people.

N-595

99

Specifications

Table 17: Cables Cables and Sensors

Maximum Length

DOC-10 pulse oximetry cable

10 ft. (3 m)

Software download cable, RS-232 serial, 15 to 9 pin “D”

10 ft. (3 m)

Non-terminated cable, RS-232/ Analog, 15 pin “D”

10 ft. (3 m)

Oxinet hardwire cable

10 ft. (3 m)

Printer cable, RS-232, 15 to 9 pin “D”

10 ft. (3 m)

HP Agilent interface cable

3.3 ft. (1 m)

GE Marquette interface cable

3.3 ft. (1 m)

Datex-Ohmeda interface cable

3.3 ft. (1 m)

Oxinet® II Data Cable

10 ft. (3 m)

O XI M M AX sensors:

Complies With •

RF emissions, CISPR 11, Class B/Group 1

•

Harm Harmon onic ic emis emissi sion ons, s, IEC IEC 6100 61000 0-3-2

•

Voltag oltagee fluct fluctua uatio tions ns/f /flic licke kerr emiss emission ion,, IEC 61000-3-3

•

Elec Electr tros osta tati ticc dis disch char arge ge (ES (ESD) D),, IEC 61000-4-2

•

Elec Electr tric ic fast fast tran transi sien ent/ t/bu burs rst, t, IEC 61000-4-4

•

Surge, IE IEC 61 61000-4-5

•

Conduc ducted ted RF RF IE IEC 61 61000-4-6

•

Rad Radiate iated d RF, RF, IEC IEC 610 61000-4-3

•

RF emis emissi sio ons, ns, CIS CISPR 11, Class B/Group 1

MAX-A

1.5 feet (0.5 m)

MAX-AL

3 feet (0.9 m)

•


MAX-I

1.5 feet (0.5 m)

•

MAX- N N

1.5 feet (0.5 m)


MAX-P

1.5 feet (0.5 m)

•


MAX-R

1.5 feet (0.5 m)

O XI M M AX Oxiband ® sensor s:

3 feet (0.9 m)

•


•

Surge, IE IEC 61 61000-4-5

•


•


OXI-A/N OXI-P/I

100

Specifications

Table 17: Cables Cables and Sensors

Maximum Length

O XI M M AX Durasensor sensor

3 feet (0.9 m)

DS-100A

O XI M M AX OxiCliq sensors:

OC-3 cable 3 feet (0.9 m)

P

Complies With •

RF emissions, CISPR 11, Class B/Group 1

•


•


•


•


•

Surge, IE IEC 61 61000-4-5

•


•


•

RF emis emisssion ions, CISP CISPR R 11, Class B/Group 1

•


•


•


•


•

Surge, IE IEC 61 61000-4-5

•


•


N I A

O XI M M AX Dura-Y sensors:

4 feet (1.2 m)

D-YS D-YSE D-YSPD

Safety Tests Ground Integrity 100 milliohms or less

N-595

101

Specifications

Earth Leakage Current IEC 60601-1 AAMI/ ANSI-ES1

UL 2601-1

AC Polarity

Line Cord

Neutral Cord

Normal

Closed

Closed

500 µA

300 µA

Reversed

Closed

Closed

500 µA

300 µA

Normal

Open

Closed

1000 µA

500 µA

Normal

Closed

Open

1000 µA

500 µA

Enclosure Leakage Current

AC Line Polarity

Neutral Line Cord

Power Line Ground Cable

Normal

Closed

Closed

100 µA

300 µA

Normal

Closed

Open

500 µA

300 µA

Normal

Open

Closed

100 µA

300 µA *

Reversed

Closed

Closed

500 µA

300 µA

Reversed

Open

Closed

500 µA

300 µA *

Reversed

Closed

Open

500 µA

300 µA

IEC 60601-1

AAMI/ANSI -ES1 UL 2601-1

* AAMI/ANSI-ES1 does not include opening the line conductor.

Patient Applied Risk Current

102

AC Line Polarity

Neutral Line


IEC 60601-1 UL 2601-1

AAMI/ANSI-ES1

Normal

Closed

Closed

100 µA

10 µA **

Normal

Open

Closed

500 µA

50 µA **

Normal

Closed

Open

500 µA

50 µA **

Reversed

Closed

Closed

100 µA

10 µA **

Reversed

Open

Closed

500 µA

50 µA **

Specifications

AC Line Polarity

Neutral Line


IEC 60601-1 UL 2601-1

AAMI/ANSI-ES1

Reversed

Closed

Open

500 µA

50 µA **

** These requirements are generally for IEC 60601 -1 Class 1, TYPE-CF classified products.

N-595

103

Specifications

Patient Isolation Risk Current

AC Line Polarity Normal Reversed

Neutral Line Closed Closed

Power Line Ground Cable Closed Closed

IEC 60601-1 UL 2601-1

AAMI/ ANSI-ES1

5m A

50 µA ***

5 mA

50 µA ***

*** These requirements are generally for IEC 60601 -1 Class 1, TYPE-CF classified products.

104

Data Port Interface Protocol

Introduction When connected to the data port on the back of the N -595, printouts can be obtained or patient data can be communicated to a Nellcor Oxinet II monitoring system, Nellcor Intouch Remote Oximetry Notification System or personal computer (PC). Analog signals representing %SpO 2, pulse rate, and pulse amplitude are also provided by the data port. A nurse call function is also available from the data port. Each of these is discussed in more detail in the paragraphs that follow. The N-595 provides a bedside monitor interface for interfacing the N -595 with Agilent (HP), SpaceLabs, Marquette, and Datex monitors.

Configuring the Data Port Items pertaining to the data port can be adjusted by following the softkey map below. For a complete description of the softkeys, see the N -595 operator's manual.

SETUP NEXT LANG ENGLISH DANSK FRANCAIS DEUTSCH ITALIANO ESPAÑOL NEDERLANDS NORSK PORTUG SUOMI SVERIGE BACK (back to Setup menu) NEXT COMM SELECT BAUD 2400 9600 19200 PROTOCOL ASCII OXINET CLINICAL GRAPH N-595

105


AGILENT (HP Agilent monitors) SPACELBS (Spacelabs monitors) MARQ (GE Marquette monitors) DATEX (Datex-Ohmeda AS/3 monitor) -

BACK (back to Setup menu) EXIT (back to Main menu) NCALL (Nurse Call) NORM + NORM BACK (back to Setup menu) EXIT (back to Main menu) NEXT ANALOG 0 VOLT 1 VOLT STEP BACK (back to Setup menu) EXIT (back to Main menu) BACK (back to Setup menu) BACK (back to Setup menu) EXIT (back to Main menu)

Communication Baud Rate The baud rate may need to be changed to match the abilities of the attached equipment. Perform the following procedure to change the baud rate to 2400, 9600, or 19200. Note:

When setting the communication protocol to AGILENT, SPACELBS, MARQ, or DATEX the communication baud rate is automatically set to the applicable baud rate.


106

SETUP


NEXT


NEXT



COMM

5. Press the COMM softkey.

6. Use the ADJUST UP and ADJUST DOWN buttons to select the desired baud rate.

EXIT

7. Press the EXIT softkey set the baud rate. The baud rate setting will be in effect until the monitor is powered off.

Note:

The baud rate setup for the monitor may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.

Communication Protocol The COMM softkey is used to select from eight communication protocols supported by the data port. The selections are: •

ASCII used for printouts

•

OXINET to enable communication with Oxinet II

•

CLINICAL intended for Nellcor use only

•

GRAPH for graphic printouts

•

AGILENT interfaces the N -595 with an Agilent (HP) monitor

•

SPACELBS interfaces the N-595 with a SpaceLabs monitor

•

MARQ interfaces the N-595 with a GE Marquette monitor

•

DATEX interfaces the N-595 with a Datex -Ohmeda AS/3 monitor

Note:

Selecting AGILENT, SPACELBS, MARQ, or DATEX automatically sets the baud rate to the rate applicable for that protocol.

To change the communication protocol:

N-595

107



SETUP


NEXT


NEXT


COMM

5. Press the COMM softkey.

SELECT

6. Press the SELECT softkey.

7. Use the ADJUST UP and ADJUST DOWN buttons to select the desired protocol.

EXIT

8. Press the EXIT softkey set the protocol. The protocol setting will be in effect until the monitor is powered off.

Note:

The protocol setup for the monitor may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.

Language Selection Eleven languages can be viewed on the screen and sent to the printer. The languages are ENGLISH, DANSK (Danish), FRANCAIS (French), DEUTSCH (German), ITALIANO (Italian), ESPANOL (Spanish), NEDERLANDS (Dutch), NORSK (Norwegian), PORTUG (Portuguese), SUOMI (Finnish), and SVERIGE (Swedish). 1. Turn on the N-595 by pressing the ON/STANDBY button.

108


SETUP


NEXT


LANG

4. Press the LANG softkey.

5. Use the ADJUST UP and ADJUST DOWN buttons to select the desired language.

BACK

6. Press the BACK softkey to save the language setting.

Nurse Call Setup The voltage polarity for the Nurse Call, available at pins 11 and 5, can be selected through the softkeys. NORM + sets the voltage to +5 VDC to +12 VDC and NORM - sets the voltage to -5 VDC to -12 VDC when there is no audible alarm. When an audible alarm occurs, these voltages switch polarity. This signal is available only if the instrument is operating on AC power. For more information, see Nurse Call on page 122. 1. Turn on the N-595 by pressing the ON/STANDBY button.

N-595

SETUP


NEXT


NEXT


109


NCALL

5. Press the NCALL softkey.

NORM +

NORM -

6. Press the NORM+ (+5 to +12 VDC) or NORM - (-5 to -12 VDC) softkey as required for your nurse call system.

Analog Calibration Setup Analog calibration signals are provided to adjust a recorder to the output of the instrument. Selectable calibration signals are +1.0 VDC, 0.0 VDC, and Step. For more information on the analog signals see Analog Output on page 123. 1. Turn on the N-595 by pressing the ON/STANDBY button.

SETUP


NEXT


NEXT


NEXT


ANALOG 6.

0 VOLT

110

1 VOLT

STEP

Press the ANALOG softkey.

7. Press the 0 VOLT, 1 VOLT, or STEP softkey as required.


BACK

8. Press the BACK softkey.

Agilent (HP) Communications Note:

The N-595 does not support Norwegian, Danish or Finnish languages in this communication mode.

The N-595 sends SpO 2, pulse rate, and alarm status data to the Agilent monitor. The Agilent monitor requires an Agilent VueLink TM Aux Plus B interface module (A05 option) to interface with the N -595 pulse oximeter. The RS-232 hardwire interface cable has a DB -15 connector for the N -595 and the applicable connector for the Agilent monitor. Nellcor cable part number 902256 is recommended for this interface. A blank screen on the Agilent monitor will indicate corrupt data. The Agilent monitor will detect corrupt data in less than 100 milliseconds. When the N-595 is in the Agilent mode of operation the interface baud rate is automatically set to 19,200 bits per second.


The Agilent monitor only displays visual alarm indications for equipment interfaced through the Agilent VueLink TM Aux Plus B interface module. The N-595 monitor must be able to sound an audible alarm in order to maintain patient safety. Note:

The parameters setup for the Agilent bedside monitor interface may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.

SpaceLabs Communications The N-595 sends SpO 2, pulse rate, and alarm status data to the SpaceLabs monitor. The SpaceLabs monitor requires a Universal FlexPort TM interface module to interface with the N-595 pulse oximeter. Corrupt data will be indicated by a Communications Error displayed on the SpaceLabs monitor.

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111


When the N-595 is in the SpaceLabs mode of operation the interface baud rate is automatically set to 9,600 bits per second.


The SpaceLabs monitor provides both audible and visual alarm indications for equipment interfaced through the Universal FlexPort TM interface module. Silencing the N -595 alarms will also silence the S paceLabs monitor alarms. The monitors must be able to sound an audible alarm in order to maintain patient safety. Note:

The parameters setup for the SpaceLabs bedside monitor interface may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.

Marquette Communications The N-595 sends SpO 2, pulse rate, and alarm status data to the Marquette monitor. The Marquette monitor requires an Octanet TM interface module to interface with the N-595 pulse oximeter. The interface module comes with an interface cable, GE Marquette part number 417961 -033, that connects to the Nellcor interface cable. The RS-232 hardwire interface cable has a DB -15 connector for the N -595 and the applicable connector for the Marquette Octanet TM interface module cable. Nellcor cable part number 902254 is recommended for this interface. Corrupt data will be indicated by a Communications Error displayed on the Marquette monitor. When the N-595 is in the Marquette mode of operation the interface baud rate is automatically set to 9,600 bits per second. The GE Marquette monitor only sounds audible alarms for equipment interfaced through the Octanet TM interface module. Silencing the N -595 audible alarm has no effect on the GE Marquette monitor sounding an alarm. Note:

112

The parameters setup for the Marquette bedside monitor interface may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.


Datex-Ohmeda Communications The Datex-Ohmeda monitor AS/3 must be configured for communications with the Nellcor N-200 monitor in order to communicate with the N -595 monitor. Refer to the AS/3 operator's manual for instructions on configuring the AS/3 monitor. The N-595 sends SpO 2, pulse rate, and alarm status data to the Datex AS3 monitor. The RS-232 hardwire interface cable has a DB -15 connector for the N -595 and the applicable connector for the Datex monitor. Nellcor cable part number 902255 is recommended for this interface. Corrupt data will be indicated by a Communications Error displayed on the Datex monitor. When the N-595 is in the Datex mode of operation the interface baud rate is automatically set to 2,400 bits per second.


The Datex-Ohmeda monitor does not indicate audible or visual alarms for equipment interfaced. The N -595 monitor must be able to sound an audible alarm in order to maintain patient safety. Note:

The parameters setup for the Datex-Ohmeda bedside monitor interface may be saved as institutional default settings. See Setting Institutional Defaults (Sample) on page 47. Use care when performing this procedure because all settings will be saved as institutional default settings.

Connecting to the Data Port Data is transmitted in the RS -232 format (pins 2, 3, and 5) or RS -422 (pins 1, 4, 9, and 12). RS-232 data can be transmitted a maximum of 25 feet, RS -422 data up to 4000 feet. The pin outs for the data port are illustrated in Figure 16.

Table 18: Data Port Pin Outs

N-595

Pin

Signal

1

RXD+ (RS-422 positive input)

2

RXD_232 (RS-232 input)

3

TXD_232 (RS-232 output)

4

TXD+ (RS-422 positive output)

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Table 18: Data Port Pin Outs Pin

Signal

5

Signal Ground (isolated from earth ground)

6

AN_SpO2 (analog saturation output)

7

Normally Open (N.O.), Dry Contacts, for Nurse Call (N.O. with no audible alarm)

8

Normally Closed (N.C.), Dry Contacts, for Nurse Call (N.C. with no audible alarm)

9

RXD- (R -422 negative output)

10

Signal Ground (isolated from earth ground)

11

Nurse Call (RS-232 level output [ -5 to -12 VDC with no audible alarm] [+5 to +12 VDC with audible alarm])

12

TXD- (RS-422 negative output)

13

AN_Pulse (analog pulse rate)

14

AN_Pleth (analog pleth waveform output)

15

Nurse Call Common for Dry Contacts

Note:

When the instrument is turned off, the contact at pin 7 becomes closed and the contact at pin 8 becomes open.

The pin layout is illustrated in Figure 16 is viewed from the back of the monitor. An AMP connector is used to connect to the data port. Use AMP connector (AMP P/N 747538 -1), ferrule (AMP P/N 1 -747579 -2), and compatible pins (AMP P/N 66570-2).

Figure 16: Data Port Pin Layout When building an RS -422 cable, a resistor (120 ohms, 1/2 watt, 5%) must be added between pins 1 and 9 of the cable. The end of the cable with the resistor added must be plugged into the N -595. This resistor is not necessary for RS -232 cables. The data cable must be shielded (example: Belden P/N 9616). Connectors at both ends of the data cable must have the shield terminated to the full 360 degrees of the connector's metal shell. If rough handling or sharp bends in the cable is anticipated, use a braided shield.

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Communication With a PC Data can be sent from the N -595 to a PC by using a data cable with a Null modem connector installed between the instrument and the PC. Select the ASCII Comm protocol (see Communication Protocol on page 107). Data sent to the PC is serial, 8 data bits, no parity, 1 stop bit XON/XOFF flow control and is space delineated. When the connection is made, real -time data will be sent to the PC. A new line of data will be sent every 2 seconds. The information presented will be the same as described in Real -Time Printouts later in this section. Holding the Control key on the PC keyboard and pressing “C” twice can access an interactive mode. When the interactive mode has been accessed, real -time serial output is stopped and serial input is accepted. Printouts can be requested or the date and time can be adjusted via the PC. The PC monitor will display 5 options: 1. Dump Instrument Info

2. Set Date and Time

3. Dump Trend

4. Dump Error Log

5. Exit Interactive Mode

Dump Instrument Info (Option 1) This allows Instrument Info to be printed or displayed on the PC screen. This option is intended for Nellcor’s field service personnel. Instrument Info is a single line of data, which includes software version, CRC number, and total operating time.

Set Date and Time (Option 2) When the instrument is shipped from the factory, the date and time are set to the time zone by the manufacturer. If the battery has been removed or disconnected, the time clock will not reflect the actual date and time. After battery power has been restored, it will be necessary to reset the date and time. When option 2 has been selected, the date and time can be changed via the PC. The format for date and time is DD -MMM-YY HH:MM:SS. Move the cursor under the value to be changed and enter the new value.

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115


Dump Trend (Option 3) Selecting Dump Trend outputs current trend information. Up to 48 hours of trend information can be viewed. Information presented includes: •

instrument type

•

software revision level

•

printout type

•

alarm limits

•

date and time

•

%SpO2

•

pulse rate

•

pulse amplitude.

Dump Error Log (Option 4) A list of all of the error codes in memory can be obtained by selecting option 4. The information that can be viewed includes instrument type, software revision level, printout type, time of printout, operating time of the recorded error, error number, task number, address, and count. This option is intended for Nellcor’s field service personnel.

Exit Interactive Mode (Option 5) Selecting option 5 exits the interactive mode and returns the data port to normal operation.

Using Data on the PC Data displayed on the PC screen can be captured for use in a word - processing spreadsheet. Open a terminal program such as Hyper Terminal. Verify that the communications format is compatible with the data port of the N -595. If the communications format is compatible, real -time data will begin to be displayed on the P C. Capture the text to a file. Use Control C to stop data flow. Import the data file into the spreadsheet. The data can now be manipulated by the commands of the spreadsheet. Some formatting of the data may be necessary. 116


Real-Time Printout When a real-time display or printout is being transmitted to a printer or PC, a new line of data is printed every 2 seconds. Every 25th line is a Column Heading line. A column heading line is also printed any time a value in the column heading line is changed. A real -time printout is shown in Figure 17. Note:

If the data output stops transmitting, turn the power off and back on again, or, if the monitor is connected to a PC, send an XON (Ctrl -q) to resume transmission.

Figure 17: Real-Time Printout

N-595

117


Column Heading To explain the printout, it is necessary to break it down to its key components. The first two lines of the chart are the Column Headings shown below. Every 25th line a Column Heading is printed. A column heading is also printed whenever a value of the Column Heading is changed. There are three Column Headings shown in Figure 17. The third Column Heading was printed because the SpO 2 limits changed from 85-100% to 80 -100%.

Data Source

Data in the highlighted box above represents the source of the printout or display, in this case the N -595.

Software Revision Level

The next data field tells the user the software level (Version X.X.X.X) and a software verification number (CRC XXXX). Neither of these numbers should change during normal operation. The numbers will change if the monitor is serviced and receives a software upgrade.

Alarm Limits

The last data field in the top line indicates the upper and the lower alarm limits for %SpO2 and for the pulse rate (PR). In the example above, the lower alarm limit

118


for SpO2 is 70% and the upper alarm limit is 100%. Pulse Rate alarm limits are 60 BPM (lower), and 160 BPM (upper).

Monitor Status

The monitor status, ADULT or NEO (Neonate), is displayed on the second line of the heading.

Column Headings

Actual column headings are in the second row of the Column Heading. Patient data presented in the chart, from left to r ight, is the time that the line was obtained, the current %SpO2 value being measured, the current Pulse Rate in beats per minute (BPM), the current Pulse Amplitude (PA), and the operating status of the N-595.

Patient Data and Operating Status Time

The Time column represents the N -595 real-time clock.

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119


Patient Data

Patient data and the operating status of the unit are highlighted in the display above. Parameter values, at the time of the printout, are displayed directly beneath the heading for each parameter. In this example the %SpO 2 is 100, and the pulse rate (BPM) is 190 beats per minute. The asterisk (*) next to the 190 indicates that 190 beats per minute is outside of the alarm limits, indicated in the top row, for pulse rate. If no data for a parameter is available, three dashes ( - - -) will be displayed in the printout. Pulse Amplitude (PA) can range from 0 to 254. There are no alarm parameters for this value. It can be used for trending information and is an indication of a change in pulse volume, pulse strength, or circulation.

Operating Status

The Status column indicates alarm conditions and operating status of the N -595. In this example the PH means Pulse High. The status codes are listed in Table 19. As many as 4 codes can be displayed at one time in the Status column.

Table 19: Operating Status Codes

120

Code

Meaning

AO

Alarm Off

AS

Alarm Silence

BU

Battery in Use

LB

Low Battery

LM

Loss of Pulse with Motion

LP

Loss of Pulse

MO

MOtion

PH

Pulse Rate Upper Limit Alarm

PL

Pulse Rate Lower Limit Alarm


Table 19: Operating Status Codes

Note:

Code

Meaning

PS

Pulse Search

SD

Sensor Disconnect

SH

Saturation Upper Limit Alarm

SL

Saturation Lower Limit Alarm

---

No Data Available

*

Alarm Parameter Being Violated

A Sensor Disconnect will also cause three dashes ( - - -) to be displayed in the patient data section of the printout.

Trend Data Printout (ASCII Mode) The format of data displayed when a trend printout is requested is similar to that of the real-time data. The only differences are that “TREND” is displayed in the top row instead of the “CRC:XXXX” software verification number, and there is no “Status” column (Figure 18). Readings are displayed in 2 -second intervals. The values on each row are an average for the 2 -second period. At the end of the printout, an “Output Complete” line indicates that the transmission was successful. If the “Output Complete” line is not present, the data should be considered invalid.

Figure 18: Trend Data Printout (ASCII Mode)

Trend Printout (Graph Mode) The graph mode (Figure 19 and Figure 20) disables all printout functions except trend data. Trend printouts will be graphical if connected to a serial printer that

N-595

121


supports Epson ESC protocol. To print in the Graph mode the monitor protocol must be changed to GRAPH. See Communication Protocol on page 107.

Figure 19: Monitor Trend Data Printout (Graph Mode)

Figure 20: Sensor Event Record Printout (Graph Mode)

Nurse Call An RS-232 Nurse Call signal (pins 5 and 11) can be obtained by connecting to the data port. It is in the form of a positive or negative voltage chosen by the user. The remote location will be signaled anytime there is an audible alarm. If the audible alarm has been set to Off or silenced, the Nurse Call function is also turned off. Pin 11 on the data port is the RS -232 Nurse Call signal and pin 5 is ground (Table 20). When there is no audible alarm, the voltage between pins 10 and 11 will be -5 VDC to -12 VDC, or +5V DC to +12 VDC, depending on the option chosen via the softkeys (either NORM+ or NORM -). Whenever there is an audible alarm, the output between pins 5 and 11 will reverse polarity. An internal Nurse Call relay (pins 7, 8, and 15) provides dry contacts that can be used to signal a remote alarm. Pin 15 is common, pin 7 is normally open (N.O.), and pin 8 is normally closed (N.C.). Table 20 shows the state of the contacts for

122


alarm and no alarm conditions, and for instrument off. Table 21 defines the ratings of the Nurse Call relay.

Table 20: Nurse Call Relay Pin States Pin

No Alarm or Alarm Silenced

Audible Alarm

Instrument Off

7 N.O.

Open

Closed

Closed

8 N.C.

Closed

Open

Open

Table 21: Rating of Nurse Call Relay Maximum Input Voltage

30 VA or DC (polarity is not important)

Load Current

120 mA continuous (peak 300 mA @ 100 ms)

Minimum Resistance

26.5 ohms to 50.5 ohms (40.5 ohms typical) during alarms

Ground Reference

Isolated Ground

Electrical Isolation

1500 Volts

Analog Output Analog outputs are provided for Saturation, Pulse Rate, and a plethysmographic waveform. The output voltage is 0.0 to +1.0 VDC for all three parameters. A 1.0 VDC output for saturation equals 100%; for pulse rate it equals 250 bpm; and for plethysmographic waveform, it equals 254 pulse amplitude units. The voltage will decrease as the values for these parameters decrease. If no data for a parameter is available, the output voltage for that parameter will be 1.0 VDC. After the completion of power -on self -test (POST), the instrument will initiate an automatic three-step calibration signal. The calibration signal will begin at 0.0 VDC and hold that point for 15 seconds. It will then increase to 1.0 VDC and hold that value for 15 seconds. The third part of the calibration signal is a stair step signal. The stair step signal will start at 0.0 VDC and increase up to 1.0 VDC in 0.1 VDC increments. Each increment will be held for 1 second. Through use of the softkeys, the 0.0 VDC, 1.0 VDC, or stair step signal can be selected individually (see Analog Output on page 22).

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Te c h n i c a l D i s c u s s i o n

Oximetry Overview The N-595 uses pulse oximetry to measure functional oxygen saturation in the M AX sensor to a pulsating blood. Pulse oximetry works by applying an O XI M arteriolar vascular bed, such as a finger or toe. The O XI M M AX sensor contains a dual light source and a photo detector. Bone, tissue, pigmentation, and venous vessels normally absorb a constant amount of light over time. The arteriolar bed normally pulsates and absorbs variable amounts of light during the pulsations. The ratio of light absorbed is translated into a measurement of functional oxygen saturation (SpO 2). Because a measurement of SpO 2 is dependent upon light from the O XI M M AX sensor, excessive ambient light can interfere with this measurement. Specific information about ambient conditions, O XI M M AX sensor application, and patient conditions is contained throughout this manual. Pulse oximetry is based on two principles: that oxyhemoglobin and deoxyhemoglobin differ in their absorption of red and infrared light (i.e., spectrophotometry), and that the volume of arterial blood in tissue (and hence, light absorption by that blood) changes during the pulse (i.e., plethysmography). A pulse oximeter determines SpO 2 by passing red and infrared light into an arteriolar bed and measuring changes in light absorption during the pulsatile cycle. Red and infrared low -voltage light -emitting diodes (LED) in the oximetry O XI M M AX sensor serve as light sources; a photo diode serves as the photo detector. Because oxyhemoglobin and deoxyhemoglobin differ in light absorption, the amount of red and infrared light absorbed by blood is related to hemoglobin oxygen saturation. To identify the oxygen saturation of arterial hemoglobin, the pulse oximeter uses the pulsatile nature of arterial flow. flow. During systole, a new pulse of arterial blood enters the vascular bed, and blood volume and light absorption increase. During diastole, blood volume and light absorption reach their lowest point. The pulse oximeter bases its SpO 2 measurements on the difference between maximum and minimum absorption (i.e., measurements at systole and diastole). By doing so, it focuses on light absorption by pulsatile arterial blood, eliminating the effects of nonpulsatile absorbers such as tissue, bone, and venous blood.

Functional versus Fractional Saturation This pulse oximeter measures functional saturation -- oxygenated hemoglobin expressed as a percentage of the hemoglobin that can transport oxygen. It does not detect significant amounts of dysfunctional hemoglobin, such as

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125

Technical Discussion

carboxyhemoglobin or methemoglobin. In contrast, hemoximeters such as the IL482 report fractional saturation -- oxygenated hemoglobin expressed as a percentage of all measured hemoglobin, including measured dysfunctional hemoglobins. To To compare functional saturation measurements to those from an instrument that measures fractional saturation, fractional measurements must be converted as follows:

functional saturation =

fractional saturation 100 - (% carboxyh carboxyhemog emoglobin lobin + % methemo methemoglobi globin n)

x100

Measured versus Calculated Saturation When saturation is calculated from a blood gas partial pressure of oxygen (PO 2), the calculated value may differ from the SpO 2 measurement of a pulse oximeter. oximeter. This usually occurs because the calculated saturation was not appropriately corrected for the effects of variables that shift the relationship between PO 2 and pH, temperature, the partial pressure of carbon dioxide (PCO 2), 2,3-DPG, and fetal hemoglobin. See Figure 21.

Figure 21: Oxyhemoglobin Dissociation Curve Curve

SatSeconds Alarm Management The N-595 utilizes Nellcor SatSeconds alarm management technique. SatSeconds is a function of the software within the N -595. With the SatSeconds technique, upper and lower alarm limits are set in the same way as traditional alarm management. The clinician also sets a SatSeconds limit that allows monitoring of %SpO2 below the selected lower alarm limit for a period of time before an audible alarm sounds. Refer to the N -595 Operator's manual for managing SatSeconds.

126


Reads Through Motion The N-595 takes advantage of increased micro processing power with advanced mathematical algorithms. Oxismart ® XL advanced signal processing allows the N-595 to read through challenging motion conditions to deliver accurate saturation and pulse rate values. For a definition of motion, as applicable to the N-595, contact Nellcor's Technical Services Department.

O M AX Technology XI M The N-595 pulse oximeter is designed to use Nellcor brand O XI M M AX sensors containing O XI M M AX technology. These O XI M M AX sensors can be identified by the deep blue color of their plug. All O XI M M AX -compatible sensors contain a memory chip carrying information about the O XI M M AX sensor which the oximeter needs for correct operation, including the O XI M M AX sensor’s calibration data, model type, troubleshooting codes, and error detection data. This unique oximetry architecture enables several new features with the N -595. When an O XI M M AX -compatible sensor is connected to the N -595, the pulse oximeter will first read the information in the O XI M M AX sensor memory chip, check it to make sure that there are no errors, and then load the data to begin monitoring. As M AX sensor model the pulse oximeter reads the information, it flashes the O XI M number on its display. This process takes a couple of seconds. Once the reading M AX sensor model number will stop flashing on the process is complete, the O XI M M AX sensor model display, and then the N -595 will begin monitoring. The O XI M number disappears after the pulse oximeter starts tracking the patient’s SpO 2 and pulse rate.

M AX technology, including the N -595, use Pulse Oximeters containing O XI M calibration data contained in the O XI M patient’s SpO 2. M AX sensor in calculating the patient’s By having the calibration in the O XI M M AX sensor, rather than the pulse oximeter, the M AX sensors can be improved, because the calibration accuracy of many O XI M coefficients can be tailored to each O XI M sensor. Consult the accuracy card M AX sensor. included with the pulse oximeter for specific accuracy information for the N -595 with different Nellcor approved O XI M M AX sensors. The N-595 uses the information in the O XI M M AX -compatible sensor to tailor troubleshooting troubleshooting messages for the clinician. The O XI M M AX sensor contains coding that tells the pulse oximeter what kind of O XI M M AX sensor is being used. When deciding what messages to display, the pulse oximeter takes into account the O XI M M AX sensor type and recommended patient site for that model. The N -595 O XI M M AX system therefore has an intelligent troubleshooting system.

N-595

127


Block Diagram Theory The monitor block diagram is shown in Figure 22.

Figure 22: Block Diagram The N-595 main printed circuit board (PCB) consists of three main parts: •

The Secondary Input Port/Secondary Output Port (SIP/SOP)

•

The FE-102 front end

•

The User Interface (UIF).

The SIP/SOP and the FE-102 front end are both electrically isolated from the UIF. The FE-102 is electrically isolated to reduce capacitive coupling to earth ground and improve the FE -102’s ability to read difficult patients. The SIP/SOP is isolated as mandated by regulations for patient safety. The N-595 contains a microprocessor (Motorola MPC823 Power PC) and a microcontroller (Microchip PIC17C756). The microprocessor provides the bulk of the functionality in the pulse oximeter, acting as the master controller. The microcontroller controls the FE -102 analog front end. The two processors communicate by means of an asynchronous serial link between the two processors over an isolated barrier.

128


The microprocessor is responsible for interacting with the analog front end, and communicates with the front end through control signals. The microcontroller receives the analog voltages from the front end analog -to-digital (A/D) converters. The resultant data is used to calculate SpO 2 and pulse rate values. The results are transmitted to the microprocessor via the serial link. The primary responsibilities of the microprocessor are: •

Digital signal processing of the front end data.

•

Display of the SpO2 and pulse rate data, and all other display data including status light -emitting diodes (LEDs) on the membrane panel.

•

User interface.

•

Serial port communication through the SIP/SOP interface.

•

Nurse call outputs.

•

Analog outputs.

•

Sound generation by generating the appropriate volume and frequency control settings for the speaker circuitry.

•

Monitoring and controlling pulse oximeter power.

•

Communicating with the real-time clock (RTC).

•

Communicating with the electrically-erasable- programmable-read-only-memory (EEPROM).

•

Trend data collection and storage.

Static random-access-memory (RAM) and FLASH read-only-memory (ROM) are provided for the microprocessor on the PCB . Two systems pulse oximeter integrated circuits (ICs) on the main PCB Vcc (+5 volts and +3.3 volts) power supply and provide watchdog timer. The system monitor will reset the entire PCB if the +5 volts is out of tolerance or the watchdog timer is not periodically reset by the software. The FE-102 front end also contains a Static RAM, FLASH ROM, and a system monitor. The FE-102 front end’s system monitor will reset just the FE -102 front end if the 5 -volt VCCA is out of tolerance or the watchdog timer is not periodically reset by the software. Power is supplied to the N -595 either from an AC connection (110 or 220 VAC) or from a 6-volt, 4 ampere-hour battery. The transition between power sources is invisible to the user, from AC power to battery power or from battery power to AC power. This allows functionality to remain during cases where AC power is lost or applied. The microprocessor monitors the battery voltage and shuts off the unit power supply if the battery voltage becomes too low to support N -595

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129


functionality. The FE -102 front end power supply for the N -595 is an isolated switcher which generates +5 volts and ±12 volts.

sensor and pulse oximetry The patient is connected to the N -595 via an O XI M AX sensor’s LEDs, conditions cable. The SpO2 analog front end drives the O XI M AX the incoming signal, and provides adjustable gain status. The microprocessor sensor’s analog outputs and continually controls the gain measures the O XI M AX stages and LED drive current to ensure that the signals are within the measurement range. The N-595 has a 240 x 64 liquid -crystal display (LCD) which provides various display capabilities including numeric readouts for SpO 2 and beats per minute (BPM) pulse rate, graphical pleth wave and pulse blip bar, menu selection elements, and status/error messages. There is also a membrane panel consisting of nine buttons and five LED indicators. The buttons allow the user to navigate through and input menu selections using the LCD and LED interfaces. The LED indicators provide feedback to the user on various N -595 and O XI M AX sensor conditions. The N -595 contains a speaker for audio output. The static RAM and the RTC for the microprocessor are powered whenever the N-595 has power, either AC power or battery power. This allows time and certain data to be maintained, even while the N -595 is turned off.

130

Figure 28 Main PCB Schematic Diagram (Sheet 1 of 13) 131





Figure 31 Main PCB Schematic Diagram (Sheet 4 of 13)

137


137


139


139


141


141


143


143


145


145








153


153


155


155

Figure 41 Main PCB Assembly Drawing (Front View) 157

Figure 41 Main PCB Assembly Drawing (Front View) 157

U1

J1

1

J2

RP2

C5

3 R

AT21

AT22

AT23

T24 A

) 1 ( C P I G I B D

1

AT25

T26 A

AT29

4 R

M2

AT30

N595 MAIN REV A

3 C

2 C

AT70

A T3 6

C8

AT194

AT39

) 1 ( P

T175 A A T4 0

AT41

U6

T3 A 8

AT52 A T5 0

AT54 AT56 A T9 7

A T5 8 AT59

AT57

AT55

AT3

A T9

AT51

U3

T53 A

1 2 C

T6 A 1

RP1

A T6

AT7

A T4

AT14

A T1 5

AT8

1

T13 A

AT16

T17 A

AT18

AT11

AT12

AT10

T19 A

1 R

AT20

2 R

M1

AT28

) 1 ( B S I

) 1 ( S P B J5

J4

3 J

AT27 T34 A

1 C

T3 A 3

T3 A 1

AT32

1

1

5 R

7 C

R6

A T4 3

1 T4 A 4

AT45

6 C

AT46

AT42

8 R

6 B J D

AT49

U2

A T5 AT2

AT1

) 0 ( C G B D

AT63

R9

AT65

4 C

AT35

AT48

T47 A

A T6 8

U4

AT64

AT72

A T6 9

AT62

AT66

AT60 AT67

1 1 R

3 1 C

3 2 C

A T8 4

6 2 C

A T8 3 A T8 3

A T9 0

2 2 C

AT91

A T9 2

AT3 9

AT91

A T9 2

AT93 94 A T

9 2 C

AT152

AT107

T1 A 6 0

4 3 4 C 1 R

AT1 05

R12

AT108

AT109

AT105

AT130

AT11 AT111

5 3 C

AT132

1 4 C

7 8 1 1 R R

AT131

T1 A 3

0 4 C

T162 A

3 3 C

A T1 6 A T1 66

3 1 R

AT7 10 AT170

AT6 18 AT168 A T1 7 6

AT199 AT199

8 4 C

7 0 2 T A 7 0 2 T A

AT198

T2 A 8 0 T2 A 08

AT192

C51

T174 A

Q2

A T2 5 2 A T2 25

AT226

AT261

C73

5 6 C

AT295

5 6 R

5 9 C

8 8 C

T358 A

R76

A T3 77

7 7 1 R 9

AT422

1 1 1 C

R74

AT2 46 AT426

3 2 1 C

T4 A 78

1 2 0 0 1 4 1 R R 2 1 C

3 0 1 R

2 1 1 C T4 A 82

0 8 4 T A

T479 A

3 8 4 T A

C118

A T 4 1 8

4 4 1 C

2 1 U

5 4 1 C

A T 2 6 1

9 4 1 C 0

T6 A 33

A T 6 3 5

AT634

T638 A

AT637

8 5 1 R

0 9 6 5 1 1 R R

AT678

A T6 79

A T 6 4 2

4 6 T A

4 5

C157

R175

T6 A 63

3 5 1 R

AT665 T667 A

1 8 R 5 1 C

AT319

2 9 1 R

R194 AT712

D14

D22

AT729

T7 A 13

3 2 D 4 2 D

D21

AT737

L27

0 0 2 R

8 2 D

D29

3 3 D

L29

R84

C113

1 7 R

9 8 0 9 1 C C

8 0 1 C

C86 T356 A

U11

AT559

0 9 R

AT370

AT368

AT369 AT366

AT367

R68

2 7 R

AT404

AT404

Q6

AT418

T4 A 5 6 AT465

D6

AT518

T473 A

R131

AT562

T563 A

2 3 1 R

AT533

T534 A

RP19

R130

AT601

AT613

9 3 1 R

C137

0 4 1 R

AT616

T614 A

AT615

1

T628 A

T627 A

0 5 1 C

6 4 1 R

9 5 1 C

R147

1 7 1 R

T670 A

4 8 1 R

1 6 1 R T7 A 07

0 8 9 1 0 1 7 7 2 3 1 1 1 R D 2 R C C

AT644

RP21

T708 A

5 1 U

C166

AT652

AT653

T654 A

C169

AT671

AT672

7 6 1 C

7 7 1 R

8 6 1 C

T603 A

AT699

5 8 1 R

C151

2 5 1 C

R172 AT683

AT716

T715 A

C185 C187

D31 A T7 57

6 6 1 R

R167

C162 T647 A

8 6 1 R AT691

A T6 87

AT660

AT568

4 3 1 C

T569 A

U13

0 1 D

3 6 1 C

C164

A T6 2 9 A T6 92

R190

AT688

AT720

5 9 1 R

R188 1 2 0 0 2 2 R R

AT721

2 7 1 C

9 8 1 R

1 2 8 8 1 1 R R

6 1 Q

R196

C182

7 8 9 9 1 1 R R

AT724

AT722

6 1 D 5 3 D

D17

3 0 2 R

AT735

R209

8 1 D

C181

D9 T6 A 32

R169 A T6 77

R173 T703 A

AT702

Q15

C183 T7 A 25

A T7 26

R208 A T7 36

Q17

AT742

1 7 1 C

R183 AT711

AT723

6 2 D

AT701

1 9 1 R

R199

AT710

AT723

5 1 D

AT646

AT659

AT691

R180

2 3 D

AT542

T6 A 20

T6 A 90

AT718

AT734

AT506

0 2 1 R T541 A

A T5 40

AT607

T6 A 0 9

3 7 1 C

AT733

3 1 2 R

C170

AT686

T7 A 41

C186

AT676

5 6 1 R

AT719 AT717

AT505

A T5 26

8 4 1 C C142

AT689

AT685

7 7 1 C

4 8 1 C

AT756

AT658

4 6 1 R

AT684

AT709

1 4 1 C

1 2 L

2 4 1 R

C161 AT657

T656 A

8 7 9 1 7 R 1 R

T674 A

A T7 39

D25

3 6 1 R

E 2

AT673

7 8 1 R

4 2 1 R

AT567

7 D

AT585

AT584

AT645

AT675

AT446

A T5 04

AT525

D11

AT682

T7 A 00

6 8 1 R

C139

AT566

AT584

T606 A

T6 A 31

T740 A

AT755

8 3 1 C

R141

L25

0 8 1 C

C128

AT539

T6 A 30

AT698

T697 A

R176

R117 0 4 1 C

AT538

T5 A 37

T4 A 45

AT605

T6 A 19

7 5 1 R

AT655

4 1 Q

9 J 6 7 1 C

Q13

AT651

T6 A 50

2 6 1 R

AT524

Q10 AT536

3 3 1 R

L22

3 5 1 C

T6 A 04

AT618

AT629

8 4 1 R

T626 A

T476 A

9 1 1 R

AT503

AT565

A T6 00

T6 A 25

A T4 75

0 1 1 R

T502 A

R115

3 1 1 R AT535

AT583

2 1 Q

AT595

R145

AT498

T5 A 21

T5 A 82

AT602

AT474

6 7 9 9 R R

AT472

AT497

AT495

AT520

T561 A

AT421

AT444

8 1 1 R

9 0 1 R

AT501

AT518

A T4 1 2

AT420

AT496

AT516

3 9 C

9 1 L A T4 43

AT494

6 1 1 R

AT580

60 A T1

5 8 R

Q8

T442 A

AT467

R108

2 1 1 RC127

T5 A 79

AT599

0 2 L

T4 A 19

0 1 1 C T4 A 71

R107

AT464

Q9

T5 A 81

L18

AT355

A T4 17

7 1 1 C

T560 A

9 2 1 R

7 1 L

AT3 55

A T4 16

4 1 1 R

AT438

T437 A

A T5 64

AT745

L35 D39

6 7 0 0 1 1 C C

7 5 9 0 1 C C

AT402

AT532

U17

AT738

R82

R83

R123

A T7 50

AT751

5 9 R

AT493

Q11

AT578

L16 AT332

AT331

C85

A T4 34

AT515

T558 A

1

AT577

T576 A

AT324

AT401

4 9 R

AT519

AT557

AT575

AT597

AT323

AT330

4 0 D 6 R

R67

AT556

RP20

A T7 31

L26

AT391

5 1 L

T3 A 14

2 5 R

AT328

1 8 C

4 8 C

AT364

R66

AT362

4 1 L AT313

AT322

AT329

9 7 C

AT363

3 8 C

AT517

AT555

AT574

T732 A

L24

9 5 R

7 Q

6 1 1 C

T554 A

C133

AT598

AT681

AT714

8 7 C

AT321

AT462

A T5 53 AT552

AT573

A T6 80

6 1 4 5 U 7 7 1 1 C C

AT460

AT275

6 4 R

AT320

T463 A

T4 A 59

L11

AT274

AT461 AT458

T572 A

6 5 1 R

T6 A 69

AT273

1 5 R

T312 A

AT457

AT492

AT551

1

AT668

0 7 1 R

T730 A

A T 7 4 5

3 5 R

9 8 R

A T5 14

AT696

AT749

R54

A T5 31

C165

5 9 6 T A

R193 AT706

AT728

C76

T317 A

AT439

7 1 P R

T6 A 43

5 5 1 R

AT641

AT640

3 6 C

AT271

0

C75

AT354

AT361

AT240

AT311

AT435

T491 A

T612 A

6 6 T A

8 5 R

6 5 L L

AT241

A T2 38

5 9 4 5 Q R R

C72

AT310

T4 A 56

1

6 3 1 C

AT624

2 5 1 R

AT705

3 2 L

AT309

4 8 9 6 3 6 R C C

T436 A

T490 A

T611 A

AT694

AT704

6 6 C

AT290

AT354

T529 A

R128

AT594

AT693

R174

M3

T327 A

R93

AT489

AT596

3 2 6 T A

D5

C71

AT455

2 2 1 R

AT530

AT187

U10 3 R

AT291 AT2 90

AT315

T3 A 26

T414 A

T4 A 88

AT610

9 4 6 T A

A T6 62

R106 T453 A

T513 A

AT187 AT186

A T2 58

6 9 2 R

A T4 66

AT592

R151

AT239

T2 A 37

C62

AT352

R81 4 0 1 C

T4 A 54

AT590

5 5 1 C

4 5 D12 1 C

AT661

C160

U14

R138

9 3 6 T A

T2 A 36

AT234

A T2 57

AT255

AT351

0 8 R

9 7 R

AT400

R88

T4 A 31

AT487

1

18 A T 6 T1 A 85

A T2 76

R44

AT308

AT318

AT415

T432 A

AT512

AT550

D8

C135

C147

1

AT433

AT430

T1 A 5 8 T184 A

AT219

AT242

AT253

AT272

AT316

AT325

AT486

T549 A

2 6 T A

5 1 R

T6 A 48

8 4 R

7 4 R

L4

T2 A 35

RP14 AT233

AT250

AT292

R45

R37

T305 A

C77

AT413

AT485

5 1 1 C

AT548

AT593

AT589

7 3 1 R

R136 C156

AT636

R144 9 4 1 R

6 3 R

0 8 C

6 5 R

6 9 C

A T3 99

A T4 12

5 1 P R

AT452

7 2 1 R

AT571 A T 7 5 0

T5 A 87

C92

8 9 3 T A

T397 A

AT451

8 1 P R

C132 1 9 5 T A

AT586

5 3 1 R

A T 0 6 9

A T 5 4 6

8 8 5 T A

C146

4 1 1 C

1 1 1 R

9 1 1 C

A T 5 7 4

T6 A 08

C143

AT304

AT387

AT396

7 8 R

RP16

AT511

6 2 1 R

AT544

AT386

AT395

C102

A T1 84 AT183

AT270

AT390

1 0 C103 1 C

U82

AT8 13 AT182

3 L

A T2 69

8 3 R

AT288

AT389

1

AT484

AT545

R125

R134

A T2 68

2 L

AT217

T215 A

AT267

T2 A 87

AT360

T3 A 85

AT429

AT450

AT510

0 1 3 3 1 1 C C

4 7 C

3 3 R AT286

T3 A 88

AT763

AT410

AT449

C126

AT349

AT384

AT428

A T 5 8 2

T543 A

0 7 R

AT411

AT527

9 2 1 C

T3 A 48

1 9 C

T383 A

2 9 R

AT409

A T 2 4 7

C125

1 1 2 2 1 R 1 C

M4

3 4 1 R

4 0 5 1 0 R 1 R

A T 4 5 2

C122

AT345

AT382

C89

R

T4 A 08

8 4 T A

AT477

AT509

A T 4 4 2

AT423

9 9 R AT508

AT507

5 7 R

AT617

4 9 C

T407 A

0 0 1 R

AT381

8 7 R

AT380

3 7 R

AT393

AT406

T3 A 44

AT359

T3 A 79

0 2 1 C

C90

AT340

AT182 AT181

AT232

0 7 C

AT251

7 6 C

AT249

AT350

AT347

AT342 A T3 41

AT339

AT378

C100

0 6 C 1 6 C

T264 A

AT307

7 5 R 5 5 R

AT346

A T3 38 AT337

AT394

6 8 R

T2 A 63

AT306

R43

D3 T3 A 36

AT335

AT375

AT447

R42

R41

A T1 1 8

AT218

AT256

9 5 C

A T2 85

AT302

AT297

Q4

AT343

AT372

A T2 46

AT289

R40

A T3 74

8 9 R

AT284

E 1 AT301

AT294

AT376

AT262

2 3 R

A T2 83

AT281

T3 A 03

AT334

A T1 79

T206 A

T2 A 16

AT214

1

R29 T2 A 31

AT293

2 8 C

A T1 78

L8

9 L

U9

AT248

AT280

AT333

AT392

0 1 L

AT229

AT230

T3 A 00

A T7 61

T1 A 65

7 L

T212 A

AT254

AT299

0 2 C

AT161

RP9 C45

1

RP13 AT205

T204 A

AT252

AT373

AT405

AT211

AT228

1 3 R

4 6 R

4 4 C

T245 A

AT298

T129 A

AT128

AT151

AT202

T203 A

AT213

Q3

AT282

2 3 1 6 6 6 R R R

T147 A

T196 A

C55

3 2 R

AT201

T227 A

AT2 82

9 9 C

4 5 C

3 5 C

A T2 27 AT226

28 A T0

AT357

AT146

AT176

U8 2 5 C

7 5 C

AT210

AT296

1 1 P R

T1 A 49 AT145

T180 A

AT278

3 1 L

U7

9 1 C

AT126

T1 A 0 8

A T2 66

5 3 R

AT127

4 2 C

T150 A

AT195

T2 A 65

AT371

C43

AT137

AT193

5 2 R

ASSY NO. 062315-A

T2 A 79

1

1

AT148

AT177

T247 A

T2 A 9 7

AT104

RP6 T1 A 25

AT164

AT244

4 6 C

8 1 C

T103 A

AT159

A T1 74

2 2 R

1 L

AT144

C47

C56

AT224

1

T8 A 9

9 3 C

C46

AT158

T2 A 43

7 8 9 C 6 R

AT124

2 4 C

AT200

T2 A 22

R7

AT81

AT143

AT141

Q1

A T2 09

0 2 R

AT80

RP8

T142 A AT139

AT155

AT260

2 1 L

AT762

AT117

AT138

15 A T5

SP1

9 5 2 T A

AT277

T123 A

AT122

A T1 8 3

T1 A 57 AT154

9 5 2 T A

8 5 C

RP7

2 3 C

AT112

AT200

R24 T2 A 21

AT120

AT156

AT5 14

8 3 C

9 1 R

19 A T2 T1 A 91

AT189

AT220

T119 A

AT7 13

1 2 9 4 R C

AT1 89

8 2 R

1 3 C

J7

1

AT118

AT121

AT136

A T8 2

RP5

AT88

) 8 2 0 F J ( C C D P B B E D

AT102

1

AT116

T7 A 9

T86 A

8

T115 A

0 1 R

AT78

T8 A 7 AT85

AT101

AT114

AT173

T1 A 1 9

0 3 R

C10

AT100

T113 A

AT172

T1 A 90

7 2 R

AT136

6 3 C

5 1 R

D1

AT171

AT169

AT9 18

7 3 C

AT135

A T7 7

U5

AT160

AT163

D2

7 9 1 T A

AT3 15

6 1 C

AT99

T96 A

7 1 C

AT140

AT169 A T1 67

7 9 1 T A

T134 A

RP4

AT76

T75 A

C9

AT74 T73 A

16 A T3

AT1 71

T1 A 88

C50

T1 A 34

T1 A 33

4 1 C

AT98

1 2 1 1 C C

7 2 C

AT110

T1 A 06

AT153

6 1 R

AT95 AT94

5 2 C

0 3 C

C15

AT71

D13 C188

L28

AT743

4 0 2 R

C190 M5

AT747

AT746

D27 AT752

2 1 2 R

R206 R205 R207 T748 A

AT753

L30

L31

L32

L33

T758 A

D34

D36

D37 L34

Q18

Q19

4 1 2 R

T759 A

D38

C189

AT760

Figure 42 Main PCB Assembly Drawing (Rear View) 159

U1

J1

AT3

A T9

1

J2

RP2

C5

3 R

AT21

AT22

AT23

T24 A

) 1 ( C P I G I B D

1

AT25

T26 A

AT29

4 R

M2

AT30

N595 MAIN REV A

3 C

2 C

AT70

A T3 6

C8

AT194

AT39

) 1 ( P

T175 A A T4 0

AT41

U6

T3 A 8

AT52 A T5 0

AT54 AT56 A T9 7

A T5 8 AT59

AT57

AT55

AT51

U3

T53 A

T6 A 1

AT7

A T1 5

AT16

AT8

1

T17 A

AT11

AT12

AT10

AT18

T19 A

1 R

AT20

2 R

M1

AT28

) 1 ( B S I

) 1 ( S P B J5

J4

3 J

AT27 T34 A

1 C

T3 A 3

T3 A 1

AT32

1

1

5 R

7 C

R6

A T4 3

1 T4 A 4

AT45

6 C

AT46

AT42

8 R

6 B J D

AT49

1 2 C

RP1

A T6

A T4

AT14

T13 A

G B D

U2

A T5 AT2

AT1

) 0 ( C

AT63

R9

AT65

4 C

AT35

AT48

T47 A

A T6 8

U4

AT64

AT72

A T6 9

AT62

AT66

AT60 AT67

1 1 R

3 1 C

3 2 C

A T8 4

6 2 C

A T8 3 A T8 3

A T9 0

2 2 C

AT91

A T9 2

AT3 9

AT91

A T9 2

AT93 94 A T

9 2 C

AT152

AT107

T1 A 6 0

4 3 4 C 1 R

AT1 05

R12

AT108

AT109

AT105

AT130

AT11 AT111

5 3 C

AT132

1 4 C

7 8 1 1 R R

AT131

T1 A 3

0 4 C

T162 A

3 3 C

A T1 6 A T1 66

3 1 R

AT7 10 AT170

AT6 18 AT168 A T1 7 6

T1 A 1 9

19 A T2 T1 A 91

AT199 AT199

8 4 C

T2 A 8 0 T2 A 08

AT192

C51

T174 A

7 5 C

AT210

Q2

A T2 5 2 A T2 25

AT226

AT230

C73

5 6 C

AT339

5 6 R

5 9 C

R76

AT422

7 7 1 R 9

AT509

AT508

A T 4 4 2

AT423

AT2 46 AT426

C122

T4 A 78

1 2 0 0 1 4 1 R R 2 1 C

2 1 1 C

C125

3 8 4 T A

C118

A T 4 1 8

4 4 1 C

9 4 1 C 0

T6 A 33

AT634

R136 C156

T638 A

AT637

8 5 1 R

0 9 6 5 1 1 R R

AT678

A T6 79

AT530

R138

AT624

5 5 1 R

AT641

AT640

4 5

1 8 R 5 1 C

6 6 T A

C157

R175

T6 A 63

3 5 1 R

AT665 T667 A

R194 AT712

D14

D22

AT729

T7 A 13

6 1 4 5 7 7 U 1 1 C C

AT714

3 2 D

L27

4 2 D

D21 AT749

0 0 2 R

AT737

8 2 D

L29

R84

C113

9 8 0 9 1 C C

8 0 1 C

U11

AT559

AT465

AT369 AT366

AT367

R68

2 7 R

0 9 R

AT404

AT404

7 1 1 C

Q8

T442 A

R108

AT518

6 1 1 R

T561 A

R131

AT562

T563 A

AT533

T534 A

AT599

AT613

9 3 1 R

R130

A T6 00

0 4 1 R

AT616

AT615

T603 A

R145

0 5 1 C

6 4 1 R

R147

1 7 1 R

T670 A

4 8 1 R

4 1 Q 1 6 1 R T708 A

9 J 6 7 1 C

0 8 9 1 0 1 7 7 2 3 1 1 1 R D 2 R C C

AT644

RP21

C166

AT653

T654 A

C169

AT671

AT672

7 6 1 C

7 7 1 R

8 6 1 C AT699

5 8 1 R

C151

AT675

AT716

AT673

R172 T7 A 00

7 8 1 R

T715 A

AT691

A T6 87

R190

C185

C164

1 2 0 0 2 2 R R

AT721

9 8 1 R

1 2 8 8 1 1 R R

R196

AT711

C182

7 8 9 9 1 1 R R

AT724

AT722

AT723

6 1 D 5 3

D17

3 0 2 R

AT735

R209

8 1 D

C181

R173 T703 A

AT702

Q15

C183 T7 A 25

A T7 26

R208 A T7 36

Q17

AT742

A T6 77

R183 R199

AT710

AT723

6 2 D

AT701

R169

1 7 1 C

1 9 1 R

D9 T6 A 32

D13

C190

C188

4 0 2 R

M5

L28

AT743

AT747

AT746

D27 AT752

2 1 2 R

R206 R205 R207 T748 A

AT753

L30

D31

C187

0 1 D

3 6 1 C

A T6 2 9

6 1 Q

5 9 1 R

R188

D

2 3 D

AT660

A T6 92

AT688

2 7 1 C 5 1 D

C162 T647 A

8 6 1 R AT691

AT720

AT734

AT646

AT659

T6 A 90

AT718

4 8 1 C

C186

T6 A 20

T6 A 0 9

R180

T7 A 41

3 1 2 R

AT676

3 7 1 C

T740 A

AT756

AT607

R167

6 6 1 R

C170

AT686

AT733

4 3 1 C

T569 A

8 4 1 C C142

AT689

AT719 AT717

AT755

L35

4 6 1 R

AT685

7 7 1 C

AT709

A T7 39

D39

AT658

AT684

AT683

L25

0 8 1 C

C161 5 6 1 R

AT657

T656 A

8 7 9 1 7 R 1 R

T674 A

AT542

A T5 40

AT568

D11 3 6 1 R

E 2

AT506

T541 A

U13

1 2 L

AT645

2 5 1 C

AT682

6 8 1 R

4 2 1 R

AT567

1 4 1 C

7 D

AT585

AT584

2 4 1 R

T6 A 31

AT698

T697 A

R176

5 1 U

AT652

C139

AT446

0 2 1 R

A T5 26

AT525

T6 A 30

7 5 1 R

AT655

2 6 1 R

T7 A 07

Q13

AT651

T6 A 50

0 4 1 C

AT539

T5 A 37

AT566

AT584

T606 A

R141

8 4 1 R

T626 A

R117

AT538

AT536

T4 A 45

AT505

A T5 04

AT605

8 3 1 C

T6 A 19

T628 A

T627 A

L22

3 5 1 C

T6 A 04

AT618

AT629

1

T6 A 25

9 5 1 C

C128 AT565

AT601

C137 T614 A

AT524

Q10

3 3 1 R

AT583

2 1 Q

AT595

RP19

R115 AT535

T5 A 82

AT580

AT602

9 1 1 R

AT503

3 1 1 R

0 1 1 R

T476 A

T5 A 21

2 3 1 R

T5 A 79

60 A T1

A T4 75

AT520

2 1 1 RC127

D6

AT518

AT421

T502 A

AT501

Q9

A T4 1 2

AT444

AT474

AT498

9 0 1 R

8 1 1 R

T473 A

6 7 9 9 R R

AT472

AT497

AT495

AT496

AT516

3 9 C

9 1 L A T4 43

0 1 1 C T4 A 71

AT467

T560 A

AT598

0 2 L

5 8 R

Q6

AT418

A T4 17

AT494

T5 A 81

L18

AT370

AT368

AT420

4 1 1 R

AT438

T437 A

R107

T4 A 5 6

AT519

9 2 1 R

7 1 L

AT355

T4 A 19

AT439

AT578

L16

T356 A

AT3 55

A T4 16

T436 A

AT464

R123

T558 A

1

T576 A

AT597

D25

AT751

6 7 0 0 1 1 C C

7 5 9 0 1 C C

R83

A T5 64

AT745

3 3 D

D29

1 7 R

R67

AT402

AT435

A T7 50

A T 7 4 5

R82

AT517

AT557

AT577

U17

AT738

5 9 R

AT556

AT575

A T7 31

L26

AT391

AT324

AT332

C86

4 0 D 6 R

AT401

4 9 R

7 Q

AT493

Q11

AT555

RP20

T732 A

L24

4 8 C

AT364

R66

AT362

AT323

AT331

AT330

C85

A T4 34

AT515

T554 A

C133 AT574

C165

T730 A

AT728

3 8 C

2 5 R

AT329

AT328

1 8 C

AT363

9 8 R

6 1 1 C

A T5 53 AT552

AT696

2 9 1 R

9 5 R

4 1 L 5 1 L

T3 A 14

AT322

AT320

9 7 C

AT532

1

AT668

0 7 1 R

8 7 C

AT321

AT313

AT354

A T5 14

AT573

AT681

5 9 6 T A

R193 AT706

AT705

3 2 L

AT319

T312 A

6 4 R

AT462

AT551

6 5 1 R

T6 A 69

AT460

AT275

AT274

AT311

T463 A

T572 A

A T6 80

AT694

R174

R54

3 5 R

C75

AT354

R93

AT273

1 5 R

AT461 T4 A 59

7 1 P R

T6 A 43

R151

D5 AT458

AT492

L11

3 6 C

AT271

0

5 9 4 5 Q R R

C72

AT310

C76

T317 A

A T5 31

T612 A

AT693

AT704

M3

4 9 3 8 6 6 R C C

AT352

AT361

AT240

6

AT457

AT487

T611 A

A T 6 4 2

A T6 62

C160

6 6 C

AT290

AT309

AT318

8 5 R

AT241

A T2 38

U10 9 2 R 3 R

T4 A 56

2 2 1 R

T513 A

AT187

A T2 58

C71

AT455

T491 A

6 3 1 C

3 2 6 T A

2 5 1 R 4 6 T A

T453 A

1

AT610

9 4 6 T A

4 5 D12 1 C

AT661

R44

AT308

T327 A

T529 A

R128

AT594 AT592

9 3 6 T A

R106

AT596

AT590

5 5 1 C

5 1 R

T6 A 48

AT593

C135

C147

U14

D8

4 0 1 C

AT433

R88

T4 A 31

AT489

AT550

2 6 T A

AT636

A T 6 3 5

R144 9 4 1 R

AT291 AT2 90

AT315

T3 A 26

T414 A

T4 A 88

1

AT187 AT186

A T2 76

R45

AT316

R81

AT486

T549 A

AT589

7 3 1 R

T2 A 37

A T4 66

AT548

AT571 A T 7 5 0

8 8 5 T A

C146

5 4 1 C

A T 2 6 1

AT234

C62

A T2 57

AT255

AT351

0 8 R

9 7 R

AT400

T490 A

7 2 1 R

C132 1 9 5 T A

AT586

5 3 1 R

A T 5 4 6

T5 A 87

R134

A T 0 6 9

7 4 R

AT415

T432 A

AT512

18 A T 6 T1 A 85

AT219

AT239

AT242

AT233

AT253

AT292

R37 8 4 R AT325

T4 A 54

8 1 P R

9 1 1 C

A T 5 7 4

T6 A 08

C143

7 6 C

AT307

C77

AT413

AT452

AT511

6 2 1 R

AT544

1

5 1 P R

AT485

5 1 1 C

T1 A 5 8 T184 A

6 5 L L

AT218

T2 A 36

T2 A 35

RP14 0 7 C

AT251

AT250

AT272

AT306

T305 A

0 8 C

6 5 R

6 9 C

A T3 99

A T4 12

AT430

A T1 84 AT183

L4

AT270

T2 A 87

T3 A 88

C92

8 9 3 T A

T397 A

AT396

7 8 R

1

AT8 13 AT182

3 L

A T2 69

8 3 R

AT288

AT390

AT451

AT484

AT545

R125 0 1 3 3 1 1 C C

A T2 68

AT389

RP16

AT182 AT181

2 L

AT217

T215 A

AT267

AT286

AT387

AT429

4 1 1 C

2 1 U

AT510

AT386

AT395

C102

AT450

A T 5 8 2

T543 A

0 6 C 1 6 C

T264 A

4 7 C

3 3 R

AT360

T3 A 85

1 0 C103 1 C

U82

AT428

C126

AT349

AT384

AT449

1 1 1 R

AT527

9 2 1 C

T3 A 48

1 9 C

T383 A

AT763

AT410

AT411

T4 A 82

0 8 4 T A

0 7 R

2 9 R

AT409

A T 2 4 7

3 0 1 R

T479 A

1 1 2 2 1 R 1 C

M4

3 4 1 R

4 0 5 1 0 R 1 R

A T 4 5 2

3 2 1 C

AT345

AT382

C89

R

T4 A 08

8 4 T A

AT477

AT507

5 7 R

4 9 C

R74

9 9 R

AT381

8 7 R

AT380

T3 A 79

AT617

T3 A 44

AT359

AT378

0 2 1 C

C90

AT340

8 8 C

T358 A

A T3 77

T407 A

1 1 1 C

T2 A 63

AT249

AT350

AT347

0 0 1 R

AT406

6 3 R

7 5 R 5 5 R

AT346

AT342 A T3 41

3 7 R

AT393

6 8 R

AT304

R43

A T3 38

AT373

AT372

AT447

R42

R41

AT337

AT394

C100

AT302

D3 T3 A 36

AT375

8 9 R

Q4

AT335

A T3 74

AT392

E 1 AT301

AT297

R40

A T1 1 8

T206 A

AT232

AT256

9 5 C

AT289

T3 A 00

AT293

AT343

AT405

A T2 46

A T2 85

T3 A 03

AT376

AT262

2 3 R AT284

AT299

L8

A T1 79

T2 A 16

AT214

1

R29 T2 A 31

A T2 83

AT281

AT333

9 9 C

U9

AT213

0 1 L

AT229

AT280

AT298

A T7 61

T1 A 65

9 L AT205

AT248

28 A T0

AT357

1 A T1 78

RP13

T204 A

AT254

AT296

0 2 C

AT202

T203 A

AT252

AT295

T129 A

AT128

AT161

RP9 C45 7 L

T212 A

AT228

Q3

AT261

2 8 C

4 4 C

T245 A

AT294

9 1 C

AT151

T196 A

C55

3 2 R

AT201

AT211

T227 A

AT278

AT371

AT176

4 5 C

3 5 C

A T2 27 AT226

1 3 R

AT334

T147 A

T180 A

AT282

4 6 R

AT146

T1 A 0 8

AT2 82

5 3 R

AT127

4 2 C

AT195

ASSY NO. 062315-A

2 3 1 6 6 6 R R R

U7

U8 2 5 C

AT260

3 1 L

1 1 P R

T1 A 49 AT145

AT177

AT193

5 2 R

A T2 66

7 8 9 C 6 R

C43

AT137

Q1

T2 A 65

T2 A 79

1

AT126

AT144

T247 A

T2 A 9 7

AT104

RP6 1

AT164

AT244

AT277

8 1 C

T103 A

T1 A 25

AT159

T2 A 43

4 6 C

1 L

T150 A

C47

A T1 74

2 2 R

1

T8 A 9

9 3 C

C46

AT158

C56

AT224

R7

AT81

AT148

AT141

2 4 C

AT200

T2 A 22

AT80

RP8

T142 A AT139

AT160

A T2 09

0 2 R

A T8 2

RP5

AT143

AT138

AT155

AT200

R24

2 1 L

AT117

A T1 8 3

15 A T5

SP1

9 5 2 T A

0 3 R

AT124

T1 A 57 AT154

9 5 2 T A

8 5 C

T123 A

AT122

AT762

AT156

AT5 14

8 3 C

1 2 9 4 R C

AT189

T2 A 21

AT120

AT7 13

9 1 R

T1 A 90

AT1 89

AT220

T119 A

RP7

2 3 C

AT112

J7

1

AT118

AT172

AT169

AT198

8 2 R

1

AT116

AT121

AT136

6 3 C

5 1 R

D1

7 0 2 T A

7 2 R

AT136

AT135

8

) 2 0 F 8 ( J C C D P B B E D

AT102

T115 A

T7 A 9

T86 A

AT101

AT114

0 1 R

AT78

AT88

T8 A 7 AT85

AT100

T113 A

1 3 C

A T7 7

U5

C10

AT173

AT171

7 0 2 T A

AT9 18

AT3 15

AT163

D2

7 9 1 T A

T134 A

6 1 C

AT99

T96 A

7 1 C

AT140

AT169 A T1 67

7 9 1 T A

T1 A 33

7 3 C

RP4

AT76

T75 A

C9

AT74 T73 A

16 A T3

AT1 71

T1 A 88

C50

T1 A 34

4 1 C

AT98

1 2 1 1 C C

7 2 C

AT110

T1 A 06

AT153

6 1 R

AT95 AT94

5 2 C

0 3 C

C15

AT71

L31

A T7 57

L33

L32

4 1 2 R

T758 A

D37 L34

D36

D34

Q18

Q19

T759 A

D38

C189

AT760

Figure 42 Main PCB Assembly Drawing (Rear View) 159

LINE

W2

LINE_IN AC+

W1 E

W3

C2 4700P 250V TH

C3 220P 250V TH

T2 115V

1

SW1

F1 15

FAC+

9

7 T19

E

230V

7

E3490A TH 2

3

2

4

6

4 4

4

C1 220P 250V TH

3 6

13 12

8

10

BR1 GBU8B TH

NEUT_IN

Fan Control

1

3

MAIN_DC

I11

J1

2

Q5 MPSA56 3

R19 1.00K

1

+ R5 C5 0.1U 15000U 1.00K 1/2W 35V TH TH C7

3 F2

2ASB TH

I10

2 1

2

FAC-

OB24-9 TH

Q1 TH 2N3904

HIGH CURRENT VIAS

1

5

EPS2PC3 TH

R2 100M 1/4W TH

Power Entry

2

C6 0.01U

2ASB TH

NEUTRAL R1 390K 1/2W TH

1

1

CR5 22V 2 SMCJ22C

AC-

1

R4 499

1

2

To Fan

CON_2L

CR2 22V 2 SMCJ22C

CR1 1N4702 15V TH

R23 10.0K

C8 0.01U FAN_CTRL

DT1 600V TH

R24 49.9

+

TH 35V 100U C9

ESD Protection 1/4W TH

Main Board

E

MAIN_DC R10 1.50 1/2W TH

Battery Charge

BATT_CHK

W7

MAIN_DC

W9

BATT_OUT

W6

CHG_IN

C11

Q3

C4 100P

I5 R11 10.0K

0.1U

R9 1.00K

TP1

R21 73.2K

R12 10.0K

VREF

+

I6 U3 1 3

VIN GND VOUT 2 LM35D

R20 10.0K

5

+

6

-

7

3

+ -

GND TP2

3 3 R16 10.0K

4

Q2 IRF9510

1

TH 2

I8

I2

4

3 8

FAN_CTRL

4

R13 10.0K

1

I3

8

-

TH

U1 LM358

R8 1.00K

8

-

W8

I4

MPSA56

1

U1

+ LM358 2 R22 10.0K

2

4

1 R3 10.0K

U2 LM385S

R14

Q6 2 N7 00 2S 2

Requires Heat Sink Nellcor # 891196

CR7 1

3

2

10.0K I1

C10 0.1U

R7 154K

I12

I9

R25 10.0M

1N914S 1

CR6 3

1

F3 BATT+

W4

Battery +

W5

Battery -

2ASB TH

1N914S I7

CR4 SW2 MBRS330T3MTS50B TH CHG_OUT NC

R6 100K 3 Q4 2N3904 TH 1

R15 49.9K

BATT_CHK

2

R17 10.0K

Figure 43 Linear Power Supply Schematic Diagram 161

LINE

W2

LINE_IN AC+

W1 E

W3

C2 4700P 250V TH

C3 220P 250V TH

T2 1

230V

3

1

SW1

F1 15

FAC+

7 T19

E

7

E3490A TH 2

2

4

6

4 4

4

C1 220P 250V TH

3 6

13 12

8

10

BR1 GBU8B TH

2ASB TH

Fan Control

1

3

MAIN_DC

I11

J1

2

Q5 MPSA56 3

R19 1.00K

1

+ R5 C5 0.1U 15000U 1.00K 1/2W 35V TH TH C7

3 FAC-

OB24-9 TH

I10

2 1

2

F2

NEUT_IN

Q1 TH 2N3904

HIGH CURRENT VIAS

1

5

EPS2PC3 TH

R2 100M 1/4W TH

Power Entry

2

C6 0.01U

2ASB TH 9

NEUTRAL R1 390K 1/2W TH

115V

1

CR5 22V 2 SMCJ22C

AC-

1

R4 499

1

2

To Fan

CON_2L

CR2 22V 2 SMCJ22C

CR1 1N4702 15V TH

R23 10.0K

C8 0.01U FAN_CTRL

DT1 600V TH

R24 49.9

+

TH 35V 100U C9

ESD Protection 1/4W TH

Main Board

E

MAIN_DC R10 1.50 1/2W TH

Battery Charge

BATT_CHK

W7

MAIN_DC

W9

BATT_OUT

W6

CHG_IN

C11

Q3

C4 100P

I5 R11 10.0K

0.1U

R9 1.00K

TP1

R21 73.2K

R12 10.0K

U1

VREF U1

U3 1 3

VIN GND VOUT 2 LM35D

R20 10.0K

5

+

6

-

8 7

-

TH

R8 1.00K

8

-

GND TP2

3 3

1

+ -

R16 10.0K

4

TH 2

4

3 8

FAN_CTRL

4

Q2 IRF9510

1 I8

I2

I3

+ LM358

I6

3

W8 R13 10.0K

MPSA56

1

+ LM358 2 R22 10.0K

2

I4

4

1 R3 10.0K

U2 LM385S

R14

Q6 2 N7 00 2S 2

Requires Heat Sink Nellcor # 891196

CR7 1

3

2

10.0K I1

C10 0.1U

R7 154K

I12

I9

R25 10.0M

1N914S 1

CR6 3

1

CR4 SW2 MBRS330T3MTS50B TH CHG_OUT NC

I7

F3 BATT+

W4

Battery +

W5

Battery -

2ASB TH

1N914S R6 100K 3 Q4 2N3904 TH 1

R15 49.9K

BATT_CHK

2

R17 10.0K

Figure 43 Linear Power Supply Schematic Diagram 161

AC FERRITE

DC FERRITE

Figure 44 Linear Power Supply Assembly Drawing 163

AC FERRITE

DC FERRITE

Figure 44 Linear Power Supply Assembly Drawing 163

Index A Accessories on Internet 8 Adult Default Settings 37 Agilent (HP) Communications 111 Alarm Management, SatSeconds 126 Alarm Off 47 Alarm Range Limits 13 Alarm Silence 18 Alarm Speaker Replacement 78 Alarm Volume Control 20 Alarms Softkey 45 Analog Calibration Setup 110 Analog Output 22, 123 AO 120 AS 120 ASCII Mode 121

B Battery 10 Battery Charge 12

Date and Time 115 Datex-Ohmeda Communications 113 Digital Multimeter 11 Disassembly Guide 63 Disinfecting 9 Display PCB Replacement 74 Downld Softkey 45 Dump Error Log 116 Dump Instrument Info 115 Dump Trend 116

E Earth Leakage Current Specifications 102 Electromagnetic Emissions 95 Electromagnetic Immunity 96 Electrostatic Immunity

Portable RF Equipment 98 Enclosure Leakage Current Specifications 102 Equipment Needed for Performance Checks 11 Errlog Softkey 42 Error Codes 57

Index A Accessories on Internet 8 Adult Default Settings 37 Agilent (HP) Communications 111 Alarm Management, SatSeconds 126 Alarm Off 47 Alarm Range Limits 13 Alarm Silence 18 Alarm Speaker Replacement 78 Alarm Volume Control 20 Alarms Softkey 45 Analog Calibration Setup 110 Analog Output 22, 123 AO 120 AS 120 ASCII Mode 121

Date and Time 115 Datex-Ohmeda Communications 113 Digital Multimeter 11 Disassembly Guide 63 Disinfecting 9 Display PCB Replacement 74 Downld Softkey 45 Dump Error Log 116 Dump Instrument Info 115 Dump Trend 116

E Earth Leakage Current Specifications 102 Electromagnetic Emissions 95 Electromagnetic Immunity 96 Electrostatic Immunity

Portable RF Equipment 98

Battery 10 Battery Charge 12 Battery Replacement 67 Block Diagram Theory 128 BU 120 Button Problems 54

Enclosure Leakage Current Specifications 102 Equipment Needed for Performance Checks 11 Errlog Softkey 42 Error Codes 57 Error Log Dump 116 Exit Softkey 39 Exploded View 83 Explosion Hazard 1

C

F

Cables 100 Calculated Saturation 126 Calibration 9 Cautions 2 Cleaning 9 Communication Baud Rate 106 Communication Protocol 107 Communication With a PC 115 Configuring the Data Port 105 Connecting to the Data Port 113 Cooling Fan Replacement 72

Factory Default Settings 35 Fractional Saturation 126 Front Panel 4 Functional Checks 9 Functional Saturation 125 Fuse Replacement 64

B

D Data Port Interface Protocol 105 Data Port Pin Layout 114 Data Port Pin Outs 113 Data Port Problems 57 Data Port, Connecting To 113

N-595

G Graph Mode 121 Ground Integrity Specification 101

H Hospital Type Environments 3

I Info Softkey 44 Instat Softkey 43 167

Index

Instrument Info Dump 115 Invalid Silence Duration 62 Invalid SpO2 Limit 62

L Language Selection 108 LB 120 LED Excitation Test 24 LM 120 Low Battery 62 LP 120

M Main Menu 5 Manufacturer’s Declaration 95 Marquette Communications 112 Measured Saturation 126 MO 120 Monitor

Accuracy and Motion Tolerance 89 Measurement Range 89 Monitor Assembly 66 Monitor Description 3 Monitor Disassembly 65 N Neonate Default Settings 35 Next Softkey 39, 45 Nurse Call 21, 122 Nurse Call Relay Pin States 123 Nurse Call Setup 109

O Operating

Altitude 90 Atmospheric Pressure 90 Relative Humidity 91 Temperature 90 Operating Status Codes 120 Operation on Battery Power 23 Operation with a Live Subject 25 Operational Performance Problems 56 OXIMAX Technology 127 Oximetry Overview 125

P Packing for Shipment 85

168

Param Softkey 40 Parts List 82 Patient Applied Risk Current 34 Patient Applied Risk Current Specifications 102 Patient Isolation Risk Current 34, 104 Performance Tests 11 Performance Verification 11 Periodic Safety Checks 9 PH 120 Physical Characteristics 92 PL 120 Power Entry Module Replacement 68 Power Problems 53 Power Supply Replacement 70 Power-On Defaults 13 Power-On Self-Test 12 Power-On Settings 35 Power-Up Performance 12 Print Softkey 41 Printout, Real-Time 117 Problem Categories 52 PS 121 Pulse Tone Volume Control 20

R Reading Trends 62 Real-Time Printout 117 Rear Panel 4 Recommended Separation Distances 99 Related Documents 8 Repacking in a Different Carton 87 Repacking in Original Carton 85 Replacement Level Supported 63 Reset Defaults? 62 Reset Softkey 40 Returning the N-595 85 Routine Maintenance 9

S Safety Analyzer 11 Safety Tests 33 SatSeconds Alarm Management 126 Save Defaults? 62 Save Softkey 40 SD 121 Select Softkey 45 Sensor Disconnected 62 Sensor Power Dissipation 91 Sensor Softkey 40 Service Functions 37

Index

Service Functions, Accessing 38 Setting

Date and Time 115 Setting Institutional Defaults 47 SH 121 SL 121 Softkey Menu 5 Software Version 12 SpaceLabs Communications 111 Spare Parts on Internet 8 Specifications 89

Battery 90 Compliance 93 Electrical 90 Electrical,Instrument 90 Environmental 90 Performance 89 Physical 92

Relative Humidity 91 Temperature 91 Trend Data Printout (ASCII Mode) 121 Trend Dump 116 Trend Printout (Graph Mode) 121 Trend Softkey 42 Troubleshooting Guide 51

U User Interface PCB Replacement 76 Using Data on the PC 116

W Warnings 1 Who Should Perform Repairs 51

Status Code

Alarm Off 120 Alarm Silence 120 Battery in Use 120 Loss of Pulse 120 Loss of Pulse with Motion 120 Low Battery 120 Motion 120 Pulse Rate High Limit Alarm 120 Pulse Rate Low Limit Alarm 120 Pulse Search 121 Saturation High Limit Alarm 121 Saturation Low Limit Alarm 121 Sensor Disconnect 121 Status Codes 120 Storage

Relative Humidity 91 Temperature 91 Surface-Cleaning 9 T Test #1

SpO2 29 Test #2

BPM 28 Test #3

Modulation Level 30 Test #4

Light 32 Transport

Altitude 91 N-595

169

N595 Service Manual

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