070-0358-00 Rev E

Bedside Printer Module 90449

Service Manual 070-0358-00 Rev. E

© 2004 Spacelabs Spacelabs Medical, Inc. All rights reserved. reserved. Contents Contents of this publication publication may not be reproduced in any any form without the written permission permission of Spacelabs Spacelabs Medical. Products of Spacelabs Medical are covered by U.S. and foreign patents and/or pending patents. Printed in U.S.A. Specifications and price change privileges are reserved. Spacelabs Medical considers itself responsible for the effects on safety, reliability and performance of the equipment only if: • • •

assembly assembly operations operations,, re-adjustm re-adjustments ents,, modificat modifications ions or repairs repairs are are carried carried out by persons persons authoriz authorized ed by Spacelab Spacelabs s Medical, and the electri electrical cal installat installation ion of the the relevant relevant room room complies complies with with the require requirement ments s of the standa standard rd in force, force, and the equipm equipment ent is is used used in accord accordanc ance e with with the operat operation ions s manua manual. l.

Spacelabs Medical will make available, on request, such circuit diagrams, component part lists, descriptions, calibration instructions or other information which will assist appropriately qualified technical personnel to repair those parts of the equipment which are classified by Spacelabs Medical as field repairable. Spacelabs Medical is committed to providing comprehensive customer support beginning with your initial inquiry through purchase, training, and service for the life of your Spacelabs Medical equipment. CORPORATE OFFICES U.S.A. Spacelabs Medical, Inc. 5150 220th Ave SE Issaquah, WA 98029 Telephone: Telephone: 425-657-7200 Telephone: Telephone: 800-522-7025 Fax: 425-657-7212 Authorized EC Representative Representative UNITED KINGDOM Spacelabs Medical Ltd. Basepoint Business Centre Metcalf Way, Crawley West Sussex RH11 7XX Telephone: 44 (0) 845 6017224 Fax: 44 (0) 845 6017225

BirthNet, Data Shuttle, Flexport, Intesys Clinical Suite, Maternal Obstetrical Monitor, MOM, Mermaid, Multiview, PCIS, PCMS, PrintMaster, Quicknet, Sensorwatch, TRU-CAP, TRU-CUFF, TRU-LINK, UCW, Ultralite, Ultraview, Ultraview Clinical Messenger, Ultraview SL, Uni-Pouch, Universal Flexport, Varitrend and WinDNA are trademarks of Spacelabs Medical, Inc. Other brands and product names are trademarks of their respective owners.

CAUTION: Rx Only

US Federal law restricts the devices documented herein to sale by, or on the order of, a physician.

Table of Contents Chapter

Page

Introduction Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Controls and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Setup Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Performance Verification Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Loading Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Printing Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Maintenance Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Cleaning/Disinfecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Preventive Maintenance Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Disassembly/Assembly Disassembly/Assembly Procedures Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Troubleshooting Failure During Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Failure During Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Circuit Description System Functional Description Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Circuit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Recorder Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Thermal Recorder Assembly Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Top Level Assembly Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Major Field Repairable Subassemblies Subassemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Top-Level Assembly Bill Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Appendix A — Electromagnetic Electromagnetic Compatibility Electromagnetic Emissions. Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Electromagnetic Imm Immunity unity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Frequency Separation Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Appendix B — Symbols

i

Introduction Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Overview The 90449 dual-channel bedside printer module prints strip charts to document waveforms, numeric vital sign data, and trends monitored by all Spacelabs Medical monitors. Figure 1-1 illustrates the front and back of the module and its features.



MODEL NUMBER NUMERO DU MODELE MODELLNUMMER



SERIAL NUMBER NUMERO DE SERIE SERIENNUMMER OPTIONS



OPTIONS



OPTIONEN

SOFTWARE



 P A P E R O U T

S T O P

S L O W

U N I T O F F

C O N T I N U E

VERSION VERSION DU LOGICIEL VERSION



DE SOFTWARE SOFTWAREVERSION



PROGRAMVARUVERSION

Figure 1-1: Printer front and back panels

       

Recorder STOP key Paper tray eject button PAPER OUT LED UNIT OFF key SLOW recorder speed key UNIT OFF LED CONTINUE recording key Synchronous Data Link Connector (SDLC)

1-1

Bedside Printer Module — Service Manual

Controls and Indicators Recorder STOP Key Press the STOP key to end any printing currently in progress and to begin printing the next print request in the queue.

Paper Tray Eject Button Press the paper tray eject button to remove the plastic paper tray. While the paper tray is removed from the unit, the monitor emits a periodic high-pitched beep and the PAPER OUT LED flashes.

PAPER OUT LED When the printer module is out of paper, the PAPER OUT LED flashes and the monitor emits a high-pitched beep every eight or nine seconds.

UNIT OFF Key Press the UNIT OFF key to turn the printer module on- or off-line. When the printer is off-line, it ignores alarms and print requests. The LED illuminates when the printer is off-line.

UNIT OFF LED The LED on the UNIT OFF key illuminates when the printer module is off-line.

SLOW Recorder Speed Key If you press the SLOW key while a recording is in progress, the print speed changes to 6.25 mm/sec. Press the SLOW key a second time to resume normal printing speed. This key has no effect on the print speed of non-waveform recordings (data tables, graphics, etc.).

CONTINUE Recording Key This key has two functions: 1 If you press the CONTINUE key when the printer is off-line, the module feeds one sheet of paper through the printer. 2 If you press the CONTINUE key while a 12- or 20-second recording is already in progress, the module converts the recording to a continuous recording. When you send data to the printer while a recording is still in progress, the module stores the data until the recording in progress is complete. If you press CONTINUE while this stored data is printing, the stored data prints first, followed by a horizontal line, then the current data prints.

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I n t r o d u c t i o n

Accessories TRU-LINK Z-fold thermal paper, 50 mm (2 in) x 27.4 m (90 feet) (P/N 006-0196-00)

Safety Meets UL 544, AAMI, and IEC 60601-1 standards. For maximum patient and operator safety, follow these recommendations. •

Do not use the module if it is wet.

•

Do not use the module if it shows obvious signs of damage.

General Specifications Electrical Operating voltage is +5 and +12 VDC. Power consumption is approximately 1 watt standby, 6 watts typical, 18 watts maximum.

Power Requirements This module is designed to be used with Spacel abs Medical bedside monitors or bedside/t ransport monitors. These monitors operate from a mains power source with a nominal li ne voltage of 100 to 120 VAC and are switchable from 200 to 240 VAC. The line frequency is 50 to 60 Hz.

Environmental Requirements Storage Temperature

4° to 149° F (-16° to 65° C)

Humidity

95% (non-condensing)

Altitude

0 to 40,000 feet (0 to 12, 192 m)

Operating Temperature

32° to 113° F (0° to 45° C)

Humidity

95% (non-condensing)

Altitude

0 to 10,000 feet (0 to 3,048 m )

Physical Dimensions Height

4.5 inches (11.4 cm)

Depth

7.2 inches (18.3 cm)

Width

2.2 inches (5.6 cm)

Weight

2.1 pounds (.95 kg) without paper

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Connectors A Synchronous Data Link Connector (SDLC) connects t he printer to the monit or.

Strip Chart Detail Marking Method

Thermal Array “Hot Dot” print head

Resolution

8 dots per mm vertical and 32 dots per mm horizontal at 25 mm per second chart speed

Grid Size Pressure Waveform

40.0 mm, 4.0 mm major, 2.0 mm minor divisions for single recording, and 20.0 mm, 4.0 mm major, 2.0 mm minor divisions for dual recording

ECG Waveform

40.0 mm, 5.0 mm major, 1.0 mm minor divisions for single recording, and 20.0 mm, 5.0 mm major, 1.0 mm minor divisions for dual recording

Chart Speed Frequency Response Paper

1.56, 3.12, 6.25, 12.5, 15, 25, 30, and 50 mm per second (depending on the monitor sweep speed selected) Determined by the parameter recorded TRU-LINK Z-fold thermal paper, 50 mm (2 in) × 27.4 m (90 feet) (P/N 006-0196-00)

1-4

Setup Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Loading Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Printing Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Overview This section contains information on unpacking, installing, and maintaining the 90449 dualchannel bedside printer module.

Unpacking and Inspection Before you unpack the module, inspect the shipping container for visible damage. Unpack and remove the unit from the container. The following items should be included: •

90449 bedside printer module

•

TRU-LINK Z-fold thermal paper, 50 mm (2 in) × 27.4 m (90 feet) (P/N 006-0196-00)

Check the exterior for any signs of physical damage. If you detect any damage, notify the carrier and Spacelabs Medical immediately.

Performance Verification The 90449 printer module receives data from the bedside monitor and must be installed in a monitor or module housing to operate. You can plug it into the monitor/module housing while the monitor is ON without disrupting the monitor. When you first install the module into a monitor/module housing, administer the following performance verification procedure. Note: The monitor must be monitoring a parameter (ECG, NIBP, etc.) for you to complete this procedure. Insert the module into the monitor/module housing and verify that the printer is operating normally.

1 Verify that the monitor displays the keys in the Monitor Setup and Recorder Configuration menus. Refer to Printing Directory on page 2-3 for the proper display. 2 Initiate test recordings: •

Manually from the bedside monitor.

•

Automatically through an alarm violation.

This completes the performance verification procedure for the printer module.

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Loading Paper When the printer module is out of paper, a high pitched beep sounds every eight or nine seconds and the PAPER OUT light flashes.

To Load Paper into the Printer Module 1 Press the eject button next to the PAPER OUT LED. 2 Withdraw the plastic paper tray. 3 Discard the old cardboard retainer inside the tray. 4 Remove the label from the new paper, but keep the cardboard retainer in place around one end. 5 Start inserting the paper into the tray, beginning with the cardboard retainer end. 6 With the paper halfway into the tray, lift up the spring-loaded roller. 7 Pull out the top fold of paper from under the top end of the cardboard retainer. 8 Bring the top fold over the top of the spring-loaded roller. 9 Release the spring-loaded roller onto the remainder of the paper. 10 Slide the paper fully into the tray. 11 Unfold the paper and position it over the top of the black roller at the end of the tray. 12 Slide the tray completely back into the printer module.

Note orientation of small cue mark

Figure 2-1: Slide-out paper tray Note: When the unit is out of paper or is off-line, it will ignore any new print requests or alarms that would normally start a printout. The printer module has a slide-out plastic tray that accepts packets of folded and perforated thermal paper (Z-fold paper).

Caution Removing the entire printer module from the bedside monitor to load paper will cause an immediate loss of all print requests waiting to print on the module.

2-2


Each sheet of paper has a small black rectangular “cue” mark located along one edge used for paper feeding. Make sure this “cue” mark faces out and is located at the bottom edge when you are loading paper into the tray (refer to Figure 2-1). Each printout starts at the Z-fold perforation. No blank sheets are placed between successive print requests.

Clearing a Paper Jam If the printer paper becomes jammed or wrapped around the roller inside the print head assembly, the printer will stop. Use the following steps to clear the jam.

1 Press the UNIT OFF key to take the printer off-line. 2 Push the paper tray eject button and remove the plastic paper tray. 3 Clear and remove any damaged paper. 4 Reload the paper tray by following the instructions under Loading Paper on page 2-2.

Printing Directory Note: Not all keys are displayed on the screen at any one time

Setting up the Printer

MONITOR SETUP RECORDER CONFIG.

RECORDER CONFIGURATION RECORDING DURATION

ALARM PARAMS

RECORDING DESTINATION

Number of Recorder Channels 1

2

4

VITALS SETUP

2-3

S e t u p


To Obtain Recordings from the Monitor:

Touch RECORD once

Touch RECORD twice

RECORDER MENU CONTINUOUS RECORD

RECORD ALL

RECORD PRESELECTED A

RECORD PRESELECTED B

PRINT VITAL SIGNS

Touch this key, and then touch the desired parameter key (up to four), for each parameter to be continuously recorded.

2-4

Maintenance Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Cleaning/Disinfecting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Disassembly/Assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Overview Caution

Observe precautions for handling electrostatic-sensitive devices! Note: • Never touch electrostatic-sensitive electronic components without following proper anti-static procedures, including the use of an ESD wrist band and mat. An electrostatic discharge from your fingers can permanently damage electronic components. • All static-sensitive electr onic components are packaged in static-shielding bags. Retain the bag for repackaging the component, should you need to store it or return it to Spacelabs Medical for any reason. • Cleaning, preventive maintenance, and safety checks should be performed annually and following any product disassembly/assembly. Preventive maintenance and safety checks must be performed by trained personnel only.

Cleaning/Disinfecting Warning •

Use only recommended cleaning solutions, or you may void the manufacturer’s warranty.

•

Harsh chemical agents degrade plastics and will compromise the safety of the device.

•

Disconnect the equipment from the patient and the electrical supply before cleaning.

•

Do not allow liquid to enter the interior of the module or monitoring equipment.

•

Do not immerse the equipment or cables in water or cleaning solutions.

•

Do not autoclave.

To clean the exterior of monitors, modules, and cables: •

Prepare the cleaning solution according to the manufacturer’s instructions.

• • • • •

Wet a clean cloth with the selected cleaning solution. Remove excess liquid from the cloth and squeeze dry. Wipe exposed surfaces of the equipment and cables. Remove any soap residue by gently wiping with a clean damp cloth. Wipe dry with a clean dry cloth. 3-1


Use only the following recommended cleaning solutions: •

Mild soap and water solution

•

U.S. Pharmacopoeia (USP) green soap

•

Sodium hypochlorite solution (1:10 dilution of household chlorine bleach in water)

•

Phenolic germicidal detergent (1% aqueous solution)

•

Glutaraldehyde (2.4%) (Cidex)

•

Isopropyl alcohol (70% solution)

Note: Over time, repeated use of a chlorine bleach solution may cause some colors to fade. Tape adhesive can be removed with Spacelabs Medical adhesive tape remover pads (P/N 392196-001). Questions and concerns about cleaning issues should be directed to a Spacelabs Medical field service engineer.

Preventive Maintenance A Spacelabs Medical field service engineer should check the module for acceptable equipment performance and electrical safety at least once every 12 months. There are no internal adjustments to perform on this module.

Visual Inspection Use the latch on the lower portion of the module to remove it from the monitor. Inspect the connector on the rear of the module for bent or damaged connector pins. If the module has been damaged in any way, a Spacelabs-qualified repair per son should check the module for acceptable equipment performance and electrical safety.

Hardware/Mechanical Check Verify the following: •

The unit is clean.

•

All screws are tight.

•

The connector pins are not damaged.

•

The case is not damaged.

3-2


Paper Sensor Cleaning With extended use, paper dust can accumulate on the paper sensor and cause false “paper out” indications. This sensor should be cleaned monthly in high-use installations, and at least every 180 days in normal-use installations.

To clean the paper sensor: 1 Remove the paper tray from the printer module. The paper sensor is located on the inside wall of the printer, as shown in Figure 3-1. It is not necessary to remove the printer from the monitor/module housing to perform this procedure.

2 Gently remove any accumulated dust with a clean cotton swab or blow off with clean, dry air. 3 Reinstall the paper tray.

Paper sensor S T O P

P A P E R O U T

U N I T O F F

S L O W

C O N T I N U E

Figure 3-1: Paper sensor location

Performance Check The 90449 bedside printer module receives data from the bedside monitor and must be plugged into a monitor or module housing to operate. It can be plugged into a monitor while the monitor is ON without disrupting the monitor. Administer the following per formance check procedure to confirm that all printer functions are performing properly. The monitor has at least one parameter active (ECG, NIBP, etc.) for you to complete this procedure.

3-3

M a i n t e n a n c e


Insert the module into the monitor/module housing and verify that the printer is operating normally. Refer to the Ultraview SL Operations Manual (P/N 070-1150-xx), located on CD-ROM P/N 084-1101-xx, for specific operating instructions.

1 Verify that the module internal self-tests complete nor mally. When these tests are complete, the module prints a strip showing a bar of diagonal test stripes, followed by the model number, software version number, and current date (refer to Figure 3-2 ).

90449 3.21.03 11/04/04

Figure 3-2: Strip printed after normal self-test

2 Initiate a test recording manually from the bedside monitor. Verify normal operation. 3 Initiate a test recording manually from the Graphic Trends menu. Verify normal operation. 4 Initiate a test recording automatically through an alarm violation. Verify normal operation. This completes the performance verification procedure for the bedside printer module.

Disassembly/Assembly Procedures 1 Remove the four screws from the sides of the unit (two on each side), so that you can remove the outer covers. 2 Remove the two screws above and below the DB-15 connector, so that you can remove the recorder control unit (RCU) PCBA. 3 Carefully disconnect the 25-pin connector (J3) located on the under side of the RCU PCBA. Be sure to note the proper orientation so you can reassemble the unit correctly. J3 is keyed to prevent improper connection. 4 Do not disassemble the unit beyond this point. The RCU PCBA is the only field-serviceable component inside the module. 5 Reassemble the module by performing these steps in reverse order.

3-4

Troubleshooting Contents Failure During Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Failure During Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Failure During Self-Test When the printer is powered ON, the recorder control unit (RCU) performs a series of self-tests. At the conclusion of the self-tests, the module prints a strip showing a bar of diagonal test stripes, followed by the model number, software version number, and t he current date (Figure 4-1). If there are any white spaces in the bar, call your Spacelabs Medical Field Service Engineer.

90449 3.21.03 11/04/04

Figure 4-1: Printing strip at conclusion of self-test

Failure During Operation If the printer fails during operation: •

Check the Paper Out LED. Refer to Loading Paper on page 2-2 for paper loading instructions.

•

Check for jammed paper. Refer to Clearing a Paper Jam on page 2-3 for procedures for clearing jams.

•

Check the paper sensor for dust accumulation. Refer to Paper Sensor Cleaning on page 3-3 for cleaning instructions.

4-1

Circuit Description Contents System Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Recorder Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Thermal Recorder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

System Functional Description The major module subassemblies are listed below: •

Recorder control unit (RCU) PCB

•

Thermal printer assembly

•

Key assembly (part of thermal printer assembly)

The block diagram in Figure 5-1 displays the signal flow between these subassemblies.

Circuit Operation The RCU assembly contains the synchronous data link connector (SDLC) interface processor, CMOS RAM, watchdog timer, and program memory.

Figure 5-1: 90449 system block diagram

5-1


Recorder Control Unit The main circuits on the analog PCBA are listed below: •

Processor

•

Data and clock

•

Thermal recorder interface

•

Driver

•

Watchdog timer

•

Memory

•

Program memory

Processor •

The RCU provides hardware interface between the bedside monitor and the thermal printer assembly.

•

The PCBA interfaces to the bedside monitor through a synchronous data link connector (SDLC).

Data and Clock •

Data is received and transmitted via processor control.

•

The clock information is received at the processor.

Thermal Recorder Interface •

The thermal recorder interface allows the RCU to initialize and write to and receive data from the thermal printer assembly.

•

It writes in data via the bi-directional data buffer.

•

It translates data into printed grids, waveforms, annotations, and thermal printer status.

•

It includes key status data for the three (or four) front panel keys — STOP, SLOW, and CONTINUE.

Driver •

The driver turns ON and OFF the processor-controlled UNIT OFF and PAPER OUT LEDs.

•

The driver controls the beeper.

Watchdog Timer •

The watchdog timer initializes the RCU during power ON.

•

If the processor does not access the watchdog timer within the time-out period, the timer re-initializes the RCU.

5-2


C i cr u i t D e s c r i p t i o n

Memory •

The RCU contains 32 kilobytes of static CMOS RAM for temporary data storage.

Program Memory •

The RCU can have a maximum of 32 kilobytes of program memory in EPROM.

5-3


Figure 5-2: RCU PCBA detailed block diagram 5-4


Thermal Recorder Assembly The thermal recorder assembly cannot be repaired or replaced in the field.

The thermal recorder assembly performs the following functions: •

Takes raw data from the RCU and formats it for paper printout by the thermal array.

•

Monitors thermal recorder assembly errors and sends the information to the RCU for action (Reset).

•

Monitors and controls +12 V for the thermal array print head.

•

Processes control lines for UNIT OFF and PAPER OUT LEDs.

•

Processes the three (or four) front-panel controls — STOP, SLOW, and CONTINUE.

•

Processes print status signals — Paper Out and Paper Tray Not Inserted.

5-5

C i cr u i t D e s c r i p t i o n

Top Level Assembly Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Major Field Repairable Subassemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Top-Level Assembly Bill of Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Overview This section provides drawings of the top-level assembly and its corresponding bill of materials (BOM). Refer to the Bedside Recorder Module Technical Reference Guide (P/N 070-0359-xx) for drawings and parts list for the major subassemblies listed on the top-level BOM.

Major Field Repairable Subassemblies 670-0471-00

90449 Interface (RCU) PCB

010-0197-00

Recorder, Thermal Module

019-0405-00

Switch, Front Membrane

019-0406-00

Printhead Assemby

Note: The interconnect cable is part of the thermal printer assembly and is not part of the Interface PCBA. Do not replace the interconnect cable.

6-1


019-0117-00 Felt Pad

TOP VIEW ROLLER DETAIL

019-0114-00 Bushing (2, one at each end)

019-0112-00 Roller

019-0113-00 Gear, 13 T

019-0116-00 Static Brush Complete Paper Tray: 010-0380-00

019-0115-00 019-0118-00 Swing Arm Spring

019-0111-00 Idler Roller

019-0110-00 Paper Guide O

90449 PAPER TRAY PARTS

Paper Tray Parts Complete Paper Tray

010-0380-00

Roller

019-0112-00

Roller Gear

019-0113-00

Roller Bushing (two needed)

019-0114-00

Paper Guide

019-0110-00

Swing Arm

019-0118-00

Swing Arm Spring

019-0115-00

Idler Roller

019-0111-00

Static Brush

019-0116-00

Felt Pad

019-0117-00

6-2


Top-Level Assembly Bill of Materials Item No.

Component P/N

Component Description

Quantity

1

010-0197-00 010-0197-01 010-0197-02 010-0197-03 010-0197-04

RECORDER, THERMAL MODULE

1

3

211-0097-00

SCREW, MAC, 4-40, PAN, PHPS, STL,.312

2

5

306772-001

LABEL, MODULE S/W VERSIONS

1

6

670-0471-00

PCB ASSY, 90449 INTERFACE

1

006-0196-00

CHART PAPER, Z-FOLD, 50 mm × 120 mm, 10/BX

1

8

211-0207-00

SCR, 4-24 x .625L, FH, 82’, S/THD, PH, AB

2

9

210-0054-00

WASHER, LOCK #4, SPLIT, OD .212, .025T

2

10

160-0825-04

EPROM, 90449, 27C256-200, V3.21.05CO

11

334-0619-00

LABEL, TYPE B EQUIPMENT, NON-ISOLATED

26

334-1644-00

LABEL, CD MARK, 0.5” x 0.5”, W/O NUMBERS

28

334-2374-00

LABEL, MODULE, MODEL&SERIAL NUMBERS

29

334-2376-00

LABEL, MODULE OPTIONS

33

084-1101-xx

CD, MANUAL, ULTRAVIEW OPERATIONS

1

All five configurations (-00, - 01, -02, -03, and -04) of the therm al recorder module assembly are in service at this time. The -04 configuration is the most current configuration.

6-3

T o p L e v e l A s s e m b yl


211-0207-00

670-0471-xx

334-2374-00

306772-001

211-0097-00 210-0054-00

010-0197-xx 334-0619-00

Figure 6-1: Bedside printer top assembly

6-4

Appendix A — Electromagnetic Compatibility Contents Electromagnetic Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electromagnetic Immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Frequency Separation Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Electromagnetic Emissions Note: This equipment has been tested under laboratory conditions and is suitable for use in all establishments, including domestic buildings and other buil dings directly connected to the public low-voltage power supply network. The customer or user of this equipment should ensure that it is used in such an environment.

Emission Test RF emissions CISPR 11

Compliance Group 1 Class B

Harmonic emissions IEC 61000-3-2 Voltage fluctuations/flicker IEC 61000-3-3

N/A

Electromagnetic Environment This equipment uses RF energy only for internal function. Therefore, RF emissions are very low and are not likely to cause any interference in nearby electronic equipment

Refer to the host monitor/module housing service manual.

A-1


Electromagnetic Immunity Note: This equipment is intended for use in the electromagnetic environment specified in the table below. The customer or user of this equipment should ensure that it is used in such an environment.

Immunity Test Electrostatic discharge (ESD) IEC 61000-4-2

IEC 60601 Test Level

±2 kV for power supply lines ±1 kV for input/output lines

Surge IEC 61000-4-5

±1 kV differential mode ±2 kV common mode

Voltage dips, short interruptions, and voltage variations on power supply input lines IEC 61000-4-11

<5% UT (>95% dip in U T for 0.5 cycle) 40% UT (60% dip in UT for 5 cycles) 70% UT (30% dip in UT for 25 cycles) <5% UT (>95% dip in U T for 5 seconds)

Electromagnetic Environment Floors should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

±6 kV contact ±8 kV air

Electrical fast transient/burst IEC 61000-4-4

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

Compliance Level

Mains power quality should be that of a typical commercial or hospital environment. N/A Refer to the host monitor/ module housing service manual.

3 A/m

Power frequency magnetic fields should be at levels characteristic of a typical location in a commercial or hospital environment.

Note: UT is

the AC mains voltage prior to application of the test level. All power line immunit y tests were performed on the host monitor/module housing at 120 VAC/60 Hz and 230 VAC/50 Hz.

A-2


Frequency Separation Distances Note: This equipment is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or user of this equipment can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and this equipment. Minimum distances, according to the maximum output power of the communications equipment, are listed in the table below.

Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the Monitor (Always evaluate electronic equipment on site before use) Immunity Test

IEC 60601 Test Level

Compliance Level

Conducted RF IEC 61000-4-6

150 kHz to 80 MHz 3 V r.m.s.

N/A

Radiated RF IEC 61000-4-3

80 MHz to 2.5 GHz 3 V/m

80 MHz to 2.5 GHz 3 V/m 1 kHz sine 80% AM

Electromagnetic Environment Portable and mobile RF communications equipment should be used no closer to any part of the monitor, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance: d=

[

3.5 V 1

]

P

150 kHz to 80 MHz d=

[

3.5 E 1

]

P

80 MHz to 800 MHz d=

[

7 E 1

]

P

800 MHz to 2.5 GHz

Where P is the maximum output power rating of the transmitter in watts (W), according to the transmitter manufacturer, and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,* should be less than the compliance level in each frequency range.** Interference may occur in the vicinity of equipment marked with the following symbol. IEC 60417-5140: Non-ionizing electromagnetic radiation * 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 wit h accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the monitors are used exceeds the applicable RF compliance level above, the monitors should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the monitors. ** Over the frequency range of 150 kHz to 80 MHz, field strengths should be less than [ V 1 ] V/m.

A-3

A p p e n d i x A — E el c t r o m a g n e t ci C o m p a t i b i l i t y


Rated Maximum Output Power of Transmitter (watts)

Separation Distance According to Frequency of Transmitter (meters) 150 kHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

0.01

0.02

0.02

0.04

0.1

0.06

0.06

0.1

1

0.2

0.2

0.4

10

0.6

0.6

1.1

100

1.8

1.8

3.5

Note 1: At

80 MHz and 800 MHz, the separation distance for the higher-frequency range applies. guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people. Note 2: These

A-4

Appendix B — Symbols The following list of international and safety symbols describes all symbols used on Spacelabs Medical products. No one product contains every symbol.

Symbol

Description

Symbol

Description

HELP Key

Keyboard Connection

SPECIAL FUNCTIONS Key

Mouse connection

RECORD Key

START/STOP Key

NORMAL SCREEN Key

START/STOP

MONITOR SETUP Key

STOP or CANCEL Key

ALARMS Key

CONTINUE Key

PREVIOUS MENU Key

ENTER Key

ON — Power Connection to Mains

OFF — Power Disconnection from Mains

ON Position for Push Button Power Switch

OFF Position for Push Button Power Switch

On Direction

ON/OFF

Television; Video Display

Video Output

ON — Part of the Instrument Only

OFF — Part of the Instrument Only

B-1


Symbol

Description

Description

Stand-by

STAND-BY Key

PAUSE or INTERRUPT

Slow Run

Reset

Power Indicator LED

Alarm

Temporary Shut Off of Alarm Tone or Screen Indicators

Indicator — Remote Control

Indicator — Local Control

PRINT REPORT Key

Indicator — Out of Paper

Partial ON/OFF

Recorder Paper

Normal Screen

?

Symbol

1 2 3

1 2 3

Return to Prior Menu

Clock/Time Setting Key

TREND/TIMER Key

HELP (Explain Prior Screen) Key

Keypad

Activate Recorder for Gr aphics

Indoor Use Only

START (NIBP) Key

Auto Mode (NIBP)

Output

No Output (Terminated)

B-2


Symbol

Description

1 2 3

B

1

Input/Output

Input

Reset

Menu Keys

Waveform/Parameter Keys

Access Special Function Menu

1 2 3

A

1 2 3

Set Initial Conditions Menu

Return Unit to Monitor Mode

2

Serial Port 1

External marker push button connection

SDLC

Serial Port 2

SDLC Port

Arterial Pulse

Electrocardiograph or Defibrillator Synchronization

Gas Exhaust

Foot Switch

Enlarge, Zoom

12,200 m

Description

Data Input/Output

Monitor Setup Select Program Options

1 2 3

Symbol

A p p e n d i x B — S y m b o sl

x

Delete

PCMCIA Card

Event

Keep Dry

Fragile; handle with care

Environmental Shipping/Storage Altitude Limitations

This Way Up

Environmental Shipping/Storage Temperature Limitations

Environmental Shipping/Storage Humidity Limitations

B-3


Symbol

Description

Symbol

Description

Open Padlock

Closed Padlock

Down Arrow

Up Arrow

Hard Drive

Power Indicator LED

Antenna

Mermaid Connector

Microphone

Omnidirectional Microphone

Audio Output, Speaker

Activate Telemetry Recorder

Network Connection

Universal Serial Bus

Gas Sampling Port

Gas Return Port

Remote Alarm; Nurse Alert

Nurse Call

Battery Status

Low Battery

Battery Replace only with the appropriate battery.

Replace only with the appropriate battery. (+ / - signs may be reversed)

All batteries should be disposed of properly to protect the environment. Lithium batteries should be fully discharged before disposal. Batteries such as lead-acid (Pb) and nickel-cadmium (Ni-Cd) must be recycled. Please follow your internal procedures and or local (provincial) laws regarding disposal or recycling.

Caution - hazardous voltages. To reduce risk of electric shock, do not remove the cover or back. Refer servicing to a qualified field service engineer (U.S.A.). DANGER - High Voltage (International)

B-4


Symbol

A V

Description

Symbol


Description

Protective Earth Ground

Functional Earth Ground

Replace Fuse Only as Marked

Fuse

Power supply jack polarity. (+ / - signs may be reversed)

Equipotentiality Terminal

Alternating Current

Direct Current

Both Direct and Alternating Current

AC/DC Input

Amperes

Hz

Hertz

Volts

W

Watts

IEC 60601-1 Type B equipment. The unit displaying this symbol contains an adequate degree of protection against electric shock.

IEC 60601-1 Class II equipment, double-isolated. The unit displaying this symbol does not require a grounded outlet.

IEC 60601-1 Type BF equipment which is defibrillator-proof. The unit displaying this symbol contains an F-type isolated (floating) patientapplied part which contains an adequate degree of protection against electric shock, and is defibrillator-proof.

IEC 60601-1 Type BF equipment. The unit displaying this symbol contains an F-type isolated (floating) patient-applied part providing an adequate degree of protection against electric shock.

IEC 60601-1 Type CF equipment. The unit displaying this symbol contains an F-type isolated (floating) patient-applied part providing a high degree of protection against electric shock, and is defibrillator-proof.

IEC 60601-1 Type CF equipment. The unit displaying this symbol contains an F-type isolated (floating) patient-applied part providing a high degree of protection against electric shock.

Loop Filter

Adult NIBP

B-5


Symbol

Description

Symbol

®

ETL Laboratory Approved

U

Note

Warning

Description Canadian Standards Association Approved

Risk of Explosion if Used in the Presence of Flammable Anesthetics

!

Operates on Non-Harmonized Radio Frequencies in Europe

Note

!

Attention - Consult Operati ons or Service Manual for Description

Warning About Potential Danger to Human Beings

Caution

Caution About Potential Danger to a Device

Noninvasive Blood Pressure (NIBP), Neonate

Fetal Monitor Connection (Analog)

Fetal Monitor Connection RS-232 (Digital)

Physiological Monitor Connection RS-232 (Digital)

Happy Face

Sad Face

Magnifying Glass

Compression

File Cabinet

List of Rooms

Arrows

Printer

Recycle

Service Message

Radio transmitting device; elevated levels of non-ionizing radiation

B-6



Abbreviations used as symbols are shown below.

Symbol

Description

Symbol

Description

1 - 32

Access Codes 1 Through 32

AIR

Air

ANT 1 ANT 2

Diversity Antenna System 1 Diversity Antenna System 2

Arr1 ArrNet2

Arrhythmia Net 1 Arrhythmia Net 2

CH ch

EEG, EMG, or ECG Channel EEG Channels - CH1, CH2, CH3, CH4 EMG Channel - CH5

cmH2O

Centimeters of Water

C.O. CO co

Cardiac Output

DIA dia

Diastolic

ECG ecg

Electrocardiogram

EEG eeg

Electroencephalogram

EMG emg

Electromyogram

ESIS

Electrosurgical Interference Suppression

EXT

External

FECG

Fetal Electrocardiogram

FHR1 FHR2

Fetal Heart Rate, Channel 1 Fetal Heart Rate, Channel 2

GND gnd

Ground

HLO hlo

High-Level Output

Multiview

Multi-Lead Electrocardiogram

NIBP nibp

Noninvasive Blood Pressure

N2O

Nitrous Oxide

O2

Oxygen

PRESS press PRS

Pressure

RESP resp

Respiration

SDLC

Synchronous Data Link Control

SPO2 SpO2 SpO2 SaO2

Arterial Oxygen Saturation as Measured by Pulse Oximetry

SVO2 SvO2 SvO2

Mixed Venous Oxygen Saturation

B-7

070-0358-00 Rev E

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