Propaq CS Service Manual Rev A

iii

Contents 1 - Safety summary... 1 Warnings... 1 Definitions... 3 Symbols... 3

2 - Overview... 5 Purpose and scope... 5 Other applicable documents... 5 Unpacking procedure... 5 Warranty service... 6 Technical support services... 6 Recommended service intervals... 6 Identifying Propaq CS Monitor configurations... 7 Identifying the Acuity Communication options... 9 Monitor controls... 9 Self test and service menus... 9 Service test screens... 11

3 - Functional verification... 13 Introduction... 13 Safety tests... 15 Functional verification... 17

4 - Calibration... 43 Introduction... 43 Equipment needed... 44 Setup... 44 Recharger supply adjustments... 46 Main power supply adjustments... 48 Calibrating realtime ECG out... 50 Noninvasive Blood Pressure calibration... 51 Invasive Blood Pressure... 53 MSP Board (MCO2) calibration... 54

5 - Troubleshooting... 55 Introduction... 55 Screen messages... 55 Battery capacity check... 57

6 - Repair procedures... 59 Introduction... 59

iv

Contents

Welch Allyn Propaq CS Vital Signs Monitor

Propaq CS Monitor software... 59 Required tools... 60 Propaq CS Monitor options... 61 Field-Replaceable Units in the monitor... 62 Replacing the power input fuse... 64 Replacing the battery pack... 64 Opening the monitor... 68 Closing the monitor... 72 Replacing the Analog Board... 73 Replacing the Display... 75 Reinstalling the Display... 77 Replacing Recharger Board fuse (F2)... 78 Replacing air tubing... 79 Replacing cables... 80 Replacing PROMs... 80 Replacing the Recharger Board... 83 Replacing the pump... 85 Replacing the side panels... 86 Expansion Module... 90 Replacing Expansion Module front panel... 93 Replacing Expansion Module button board and buttons... 94 Replacing the printer... 95 Opening the SpO2 Module... 97 Replacing the SpO2 Boards... 98 Replacing the MSP/SpO2 Boards... 99 Replacing the Sidestream CO2 assemblies... 100 Replacing Expansion Module side panels... 103 Acuity Option repair procedures... 103

7 - Technical overview... 105 Introduction... 105 System description... 105 NIBP pneumatics description... 116 Cabling diagrams... 120 Expansion Module and printer description... 121 Pulse oximetry option (SpO2) description... 123 Capnography (CO2) description... 126

8 - Field Replaceable Units (FRUs)... 129 A - Manufacturable test equipment... 135 B - Fluke patient simulator modification... 137

1

1 Safety summary Warnings This Safety Summary should be read by all Propaq CS monitor users. Specific warnings and cautions are placed throughout the documentation where they apply. Caution: Federal (U.S.A.) law restricts this device to sale, distribution, or use by or on the order of a licensed medical practitioner. WARNING Place the Propaq monitor and accessories in locations where they cannot harm the patient if they fall from their shelf or mount. Lift the monitor only by its handle; do not lift it by any attached cables. WARNING Do not connect more than one patient to a monitor. Do not connect more than one monitor to a patient. WARNING Do not use the monitor in an MRI suite or a hyperbaric chamber. WARNING Do not autoclave the monitor. Autoclave accessories only if the manufacturer's instructions clearly approve it. Many accessories can be severely damaged by autoclaving. WARNING Inspect the power adapter cord periodically for fraying or other damage, and replace the adapter as needed. Do not operate the apparatus from mains power with a damaged power adapter cord or plug. WARNING Make frequent electrical and visual checks on cables and electrode wires. WARNING When connecting the Acuity hardwire connection, connect the Propaq CS monitor to an Acuity system only. Connecting to other networks could damage the monitor or injure a patient. WARNING Safe interconnection between the Propaq monitor and other devices must comply with applicable medical systems safety standards such as IEC 60601-1-1. Within certain governmental jurisdictions, all interconnected accessory equipment must be labeled by an approved testing laboratory. After interconnection with accessory equipment, risk (leakage) current and grounding requirements must be maintained. WARNING As with all medical equipment, carefully route the patient cabling to reduce the possibility of patient entanglement or strangulation. WARNING Avoid electrosurgery burns at monitoring sites by ensuring proper connection of the electrosurgery return circuit so that the return paths cannot be made through monitoring electrodes and probes.

2

Safety summary

Welch Allyn Propaq CS Vital Signs Monitor

WARNING During defibrillation, keep the discharge paddles away from ECG and other electrodes, as well as other conductive parts in contact with the patient. Avoid contact with any accessories connected to the monitor’s left side panel. WARNING To ensure patient safety, the conductive parts of the ECG electrodes (including associated connectors) and other patient-applied parts should not contact other conductive parts, including earth ground, at any time. WARNING Do not operate this product in the presence of flammable anesthetics or other flammable substance in combination with air, oxygenenriched environments, or nitrous oxide; explosion can result. WARNING The pulse oximetry channel should NOT be used as an apnea monitor. WARNING This monitor is to be operated by qualified personnel only. The operator of this monitor should read this entire manual, the monitor Reference Guide or Directions For Use, and all accessory Directions For Use before operating the monitor. WARNING This monitor should only be repaired by qualified service personnel. The operator should not attempt to open the monitor case or perform any maintenance on the monitor except for procedures explicitly described in this manual that can be performed by operators such as inspection and cleaning. WARNING When using a power adapter with this monitor, be sure to connect the power adapter to a three-wire, grounded, hospital-grade receptacle. Do not under any circumstances attempt to remove the grounding conductor from the power plug of the power adapter. Do not plug the power adapter into an extension cord. If there is any doubt about the integrity of the protective earth ground of the receptacle for the power adapter, do not plug in the power adapter; operate the monitor only on battery power. Contact your biomedical engineering department for assistance in identifying the proper power receptacle and making appropriate power connections. Note

Within certain governmental jurisdictions, all interconnected accessory equipment must be labeled by an approved testing laboratory. After interconnection with accessory equipment, risk (leakage) current and grounding requirements must be maintained.

•

To ensure conformance to risk (leakage) current requirements when operating from an ac mains power source, use only a Welch Allyn’s 503-0054 series power adapter.

•

To ensure patient safety, use only accessories recommended or supplied by Welch Allyn. For a list of those accessories, see the Welch Allyn Products and Accessories book that accompanied this manual (PN 810-0409-XX). Accessories must be used according to your hospital’s standards and the manufacturer’s recommendations. Always refer to the manufacturer’s directions for use.

•

A product that has been dropped or severely abused should be checked by qualified service personnel to verify proper operation and acceptable risk (leakage) current values.

•

If the monitor detects an unrecoverable problem, an error message window appears containing an error number and a short message. Report such errors to Welch Allyn.

Service Manual

Safety summary

•

While under warranty, the monitor should be serviced only by a Welch Allyn service technician.

Definitions Note

Identifies information that may be important to the reader.

Caution

Identifies conditions or practices that could result in damage to equipment or other property.

WARNING

Identifies conditions or practices that could result in personal injury.

Symbols The following symbols may appear on the Propaq CS monitor or accessories. They are defined by the International Electrotechnical Commission, IEC 878 and IEC 417A. Off (Standby)

Two-way communication port

On

Input port

For continued fire protection, use only the specified fuse

Output port

Direct current

Alternating current

Non-ionizing electromagnetic radiation. This device contains an approved RLAN module frequency 2402 to 2480 MHz

Non-ionizing electromagnetic radiation. This device contains an approved RLAN module frequency 5150 to 5825 MHz

Fuse

Recycle the monitor and battery separately from other waste. Refer to www.welchallyn.com/weee for collection point and additional information.

Direct current or alternating current

Separate batteries from other disposables for recycling.

Caution: Refer to Directions For Use and accompanying documentation

IPX1

Enclosure Protection Drip proof: Classification IPX1 per IEC Publication 529

See the accompanying manual

Urgent alarm notification (output to Nurse Call system)

Battery charging when green indicator illuminated

Temperature sensor input

Patient connections are Type CF, isolated for direct cardiac application, and protected against defibrillation

Transformer meets requirements of a shortcircuit-proof safety-isolating power transformer

Patient connections are Type BF, and protected against defibrillation

For indoor use only (on power adapter only)

Protected during defibrillation

n

This way up Fragile

Stacking limit by number Temperature limits

n%

Humidity limit

3

4

Safety summary

Welch Allyn Propaq CS Vital Signs Monitor

Keep away from rain

Altitude limit

n

Patient connections are Type B

The CE Mark and Notified Body Registration Number signify the device has met all essential requirements of European Medical Device Directive 93/42/EEC Restrictions for use of wireless device in Europe. European Communities Class 2 radio equipment

The device has met all essential requirements of European Medical Device Directive 93/42/ EEC for a Class 1 product

NRTL/C Evaluated to CSA 601-1 and UL2601-1

C

US

The Canadian Standards Association has evaluated this device according to CSA 601-1 and Underwriters Laboratory Standard UL 2601-1. This device has been tested and certified by the Canadian Standards Association International to comply with applicable U.S. and Canadian medical safety standards. Apply the NIBP cuff as shown.

NIBP cuff sizes: Thigh Large adult Adult Small adult Child Infant FCC ID: PGUWA11A07 IC: 4168a-WA11A07

This device complies with FCC and Industry Canada requirements for international radiators (802.11 wireless)

Apply the NIBP cuff as shown. Single-use only (not reusable).

5

2 Overview Purpose and scope The Propaq CS Service Manual is intended as a reference for monitor maintenance and repair to the field-replaceable unit (FRU) level (“Field Replaceable Units (FRUs)” on page 129). This manual provides the technically qualified service person with troubleshooting information, repair procedures, and calibration and performance verification instructions. A technical overview of the monitor subsystems is provided as an introduction to the device’s circuitry and pneumatics. This manual is intended for the technically qualified service person. Service training classes on Welch Allyn’ products are available. Contact Welch Allyn Technical Service (page ii) for information.

Other applicable documents Several other documents are available for the Propaq CS monitor. Refer to those documents for other than maintenance and repair information. Check the Propaq CS Directions For Use for information on other user’s documentation. Title

Part Number

Propaq CS Directions For Use, English

810-2689-XX

Products & Accessories Booklet

810-0409-XX

Unpacking procedure Use the following guidelines when unpacking the monitor from its shipping carton. 1.

Before opening the monitor shipping carton, check it for damage.

2. If damage is apparent, stop unpacking the carton and contact the shipping company for further instructions. If the carton is intact, unpack the monitor. 3. With the monitor out of its carton, check to see that all the items listed on the packing slip (provided with shipment) are in the shipping carton. 4. If an item is missing, first recheck the carton, then check with your receiving department. If necessary, contact Welch Allyn at the address and phone number shown in page ii. Save the shipping carton and packing material for repacking the monitor in case it needs to be sent to a repair center or back to Welch Allyn for service.

6

Overview

Welch Allyn Propaq CS Vital Signs Monitor

Warranty service DO NOT ATTEMPT TO REPAIR the monitor yourself during the warranty period. For service and repair, contact Welch Allyn. See below.

Technical support services Welch Allyn offers a wide range of technical support services including: •

24-hour telephone support

•

loaner equipment

•

service contracts

•

field replaceable units (FRUs)

•

factory repair

For any of these services, contact Welch Allyn Technical Support: USA 1-800-535-6663

France (+33) 1-60-09-33-66

Australia (+61) 2-9638-3000

Latin America (+1) 305-669-9591

Germany (+49) 7477-927-173

Singapore (+65) 6291-0882

European Call (+353) 469-067-790 Center

Canada 1-800-561-8797

Japan (+81) 3-5212-7391

South (+27) 11-777-7509 Africa

China (+86) 21-6327-9631

United Kingdom 0-207-365-6780

Worldwide Internet Access World Wide Web (WWW) URL: http://www.monitoring.welchallyn.com/service World Wide E-mail: [email protected]

Recommended service intervals At the intervals listed below, check the Propaq CS monitor for normal operation. Interval/Condition

Perform

Located in this manual

Every 6 months to 2 years (according to hospital protocols).

Complete risk (leakage) current Safety Check followed by a Functional Verification.

“Functional verification”

If battery does not retain a charge.

Check battery pack capacity.

“Troubleshooting”

Monitor is dropped or suspected of damage or rough handling.

Complete Safety Check followed by Functional Verification.

“Functional verification”

Suspected malfunction with all or part of monitoring parameters.

Functional Verification of suspected parameter(s).

“Functional verification”

Monitor does not pass Functional Verification.

Calibration of monitoring parameter circuits, or repair, followed by Safety Check and Functional Verification.

“Functional verification” and “Calibration”

WARNING If the monitor is opened for repair or calibration, a dielectric strength test must be completed to ensure the integrity of the patient isolation barrier. The dielectric strength test procedure is provided in “Functional verification”.

Service Manual

Overview

Identifying Propaq CS Monitor configurations The following tables identify Propaq CS monitor configurations and how they are indicated. The model-option number and serial number are located on the back of the housing. The monitor indicators are located under the handle on the back. Table 1. Propaq Monitor configurations Product (housing) Propaq CS Monitor

SpO2-Only Module

Expansion Module a.

Model Option Parameters included number Number (Acuity option is also available with every model) 242

ECG, NIBP, 2 Temp, Resp Option, Nurse Call Option, Color Display

244

ECG, NIBP, 2 Temp, 1 IBP, Resp Option, Nurse Call Option, Color Display

246

ECG, NIBP, 2 Temp, 2 IBP, Resp Option, Nurse Call Option, Color Display 210

SPO2 Four Options Available: Nellcor MP-405 (Top level assembly 007-0059-XX) Nellcor MP-203 (Top level assembly 007-0020-XX) Nellcor MP-507, Nell-2a (Top level assembly 007-0109-XX) Masimo MS3 (Top level assembly 007-0060-XX)

See next table

Nellcor Nell-2 has superceeded MP-507.

There are two Acuity Wireless options available: 1.

2.4 GHz radio card (002-0150-00)

2. 5 GHz radio card (002-0160-00) Caution The 2.4 GHz and 5 GHz radio cards are not interchangeable. Replacement of the radio card in the wrong configuration will cause permanent damage to the radio card and/or monitor hardware.

7

8

Overview

Welch Allyn Propaq CS Vital Signs Monitor

Table 2. Expansion module option configurations Option number

Printer

Mainstream CO2

Sidestream CO2

SpO2

Top level assembly number

221

Yes

No

No

N/A

007-0046-XX

222

No

No

No

Nellcor MP-203

007-0050-XX

223

Yes

No

No

Nellcor MP-203

007-0047-XX

223

Yes

No

No

Nellcor MP-203

007-0051-XX

223

Yes

No

No

Masimo MS3

007-0069-XX

223

Yes

No

No

Nellcor MP-405

007-0086-XX

223

Yes

No

No

Nellcor Nell-2, MP-507a 007-0116-XX

224

No

Yes

No

Nellcor MP-203

007-0049-XX

224

No

Yes

No

Masimo MS3

007-0070-XX

224

No

Yes

No

Nellcor MP-405

007-0085-XX

224

No

Yes

No

Nellcor Nell-2, MP-507a 007-0115-XX

225

Yes

Yes

No

Nellcor MP-203

007-0048-XX

225

Yes

Yes

No

Masimo MS3

007-0071-XX

225

Yes

Yes

No

Nellcor MP-405

007-0084-XX

225

Yes

Yes

No

Nellcor Nell-2, MP-507a 007-0114-XX

226

No

No

Yes

Nellcor MP-203

007-0045-XX

226

No

No

Yes

Masimo MS3

007-0072-XX

226

No

No

Yes

Nellcor MP-405

007-0083-XX

226

No

No

Yes

Nellcor Nell-2, MP-507a 007-0113-XX

227

Yes

No

Yes

Nellcor MP-203

007-0043-XX

227

Yes

No

Yes

Masimo MS3

007-0073-XX

227

Yes

No

Yes

Nellcor MP-405

007-0082-XX

227

Yes

No

Yes

Nellcor Nell-2, MP-507a 007-0112-XX

228

No

Yes

Yes

Nellcor MP-203

007-0052-XX

228

No

Yes

Yes

Masimo MS3

007-0074-XX

228

No

Yes

Yes

Nellcor MP-405

007-0081-XX

228

No

Yes

Yes

Nellcor Nell-2, MP-507a 007-0111-XX

229

Yes

Yes

Yes

Nellcor MP-203

007-0044-XX

229

Yes

Yes

Yes

Masimo MS3

007-0075-XX

229

Yes

Yes

Yes

Nellcor MP-405

007-0080-XX

229

Yes

Yes

Yes

Nellcor Nell-2, MP-507a 007-0110-XX

a.

Nellcor Nell-2 has superceeded MP-507.

Service Manual

Overview

9

Identifying the Acuity Communication options Wireless Acuity option is identified by the yellow antenna cap on the top corner of the monitor. MONITOR

DEFIB SYNCHRO

!

3A 2AG

EKG x 1000

! !

Hardwired Acuity option is identified by the Acuity connector jack on the monitor right side panel.

12-28V, 3A

Monitor controls Nurse Call option

Alarm Light Alarm(s) Off Light Suspend/ Resume Alarm

SpO2 Option

Suspends alarm tone for 90 seconds or resumes alarm tone (if active) Start/ Stop NIBP Starts or stops NIBP reading

Home Mainstream CO2 Option

Returns the display to the Main Menu

Printer Option Printer Buttons Sidestream CO2 Option

Self test and service menus The Propaq CS monitor includes built-in self-tests that verify the integrity of its hardware and software each time you turn it on. If the monitor turns on and displays the Main Menu, all self-tests were passed. If a self-test results in a failure, a message and error code are displayed indicating the failure mode. Refer to “Troubleshooting” on page 55 and contact Welch Allyn Technical Support for help.

10

Overview

Welch Allyn Propaq CS Vital Signs Monitor

The Propaq CS monitor contains software routines that make the Functional Verification and Calibration procedures quicker and easier. You access these routines through the Service Menus as indicated in each of the procedures. The figure below shows the hierarchy of the Service Menus once you enter the top level Service Menu. The procedures in this manual indicate which buttons to push by separating each button menu name with the (>) character. For example, to access the Service Menu, the procedures would indicate for you to press SETUP > MORE > MORE > SERVICE > YES, which means you press the SETUP button, then the MORE button, then the MORE button, then the SERVICE button, and finally the YES button. Note

The figure illustrates the Service Menu functions. Some of these functions are not available if you do not have the appropriate option.

service menusservice menus

To access the Service Menu, from the Main Menu press: SETUP > MORE > MORE > SERVICE > YES.

1

2.4 GHz radio card only. 2 No function on 5 GHz radio card

NIBP TEST

IBP TEST

SpO2 TEST

CO2 TEST

MORE

PUMP TEST

AUTO PUMP

NIBP CAL

ZERO

PREVIOUS MENU

TEMP TEST

PIXEL TEST

NET TEST1, 2

PCMCIA TEST1

MORE

CONTROLLER TEST

MEMORY TEST

WLAN TEST

PREVIOUS MENU

OUT TEST

PREVIOUS MENU

LOOP TEST

3

Software version 3.6x only.

MAIN CAL

MAIN TEST

SIDE CAL

SETTINGS

SCREEN CAL

SYSTEM

KEY 0

KEY 1

KEY 2

NEXT

CHANGE

SIDE TEST

PREVIOUS MENU

MORE

KEY 3

KEY 4

ALL ALARM3

PREVIOUS MENU

Service Manual

Overview

11

Service test screens There are two Acuity Wireless options available: 1.

2.4 GHz radio card (002-0150-00)

2. 5 GHz radio card (002-0160-00) Caution The 2.4 GHz and 5 GHz radio cards are not interchangeable. Replacement of the radio card in the wrong configuration will cause permanent damage to the radio card and/or monitor hardware. The following service screens illustrate the 2.4 GHz radio card and the 5 GHz radio card diagnostic information.

Network Status screen (2.4 GHz radio card) To access this screen, from the Main Menu press SETUP > MORE > MORE > SERVICE > YES > MORE > MORE > RADIO STATUS.

NETWORK STATUS

BATTERY: 9.2 VOLTS

FIRMWARE VER: V4.57 991001 S24 COUNTRY: INTERNATIONAL MODE 0 NET NAME: com.protocol MONITOR MAC: 12:34:56:78:90:12 MONITOR IP: 123.456.789.012:12345 AP MAC: 12:34:56:78:90:12 ACUITY IP: 123.456.789.012:12345 PSICP RX: 40 TX: 158 RSSI: 47 ACUITY CONNECTED

NIBP

S D ( 85) mmHg (M)

TEMP F

T1 100.4 T2 98.6 1.8 ΔT

MCO2

BR

mmHg

Br/m

38 12

SpO2 %

NETWORK MONITOR

25 9 122 58

S D ( 15) mmHg (M)

97

PREVIOUS MENU

12

Overview

Welch Allyn Propaq CS Vital Signs Monitor

Network Monitor screen (2.4 GHz radio card) To access this screen, from the Network Status screen press NETORK MONITOR. (Or from the Main Menu, press SETUP > MORE > MORE > SERVICE > YES > MORE > MORE > RADIO STATUS > NETWORK MONITOR.)

NETWORK MONITOR

BATTERY: 9.2 VOLTS

TX PACKETS: RX PACKETS:

DIR UNDIR 58833 813 49431 4604

TX RETRIES: RX CRC ERRS:

1MBPS 2MBPS 17065 34997 1714 240

LOAD LEVELING: AP DROPPED MUS:

25 9 122 58

S D ( 15) mmHg (M)

S ERRORS NIBP (M) D 0 ( 85) mmHg 1954 TEMP T1 100.4 T2 98.6 PERCENT F 1.8 ΔT 4 BR 2 MCO2

2 LOW RSSI: 3

1

mmHg

38 12

SpO2 %

NETWORK STATUS

Br/m

97

PREVIOUS MENU

Network Status screen (5 GHz radio card) To access this screen, from the Main Menu press SETUP > MORE > MORE > SERVICE > YES > MORE > MORE > RADIO. 0

NETWORK STATUS

BATTERY: 8.4 VOLTS

FIRMWARE VER: 1.00.00 A0023 NET NAME: pco|99 MONITOR MAC: 00:1A:FA:00:01:02 MONITOR IP: 172.29.51.32

T1 °C

37.0

PREVIOUS MENU Note

Before the monitor has made a connection to the network, the fields in the above screen will not be populated. Once the fields are populated, they will not be updated until the monitor’s power is cycled.

Note

There is no 5 GHz Network Monitor service screen.

13

3 Functional verification Introduction This functional verification procedure helps to confirm the proper operation of the Propaq CS monitor and options. This procedure supports the requirements of routine preventive maintenance. No monitor disassembly is required to perform this procedure. “Calibration” on page 43 provides the full calibration procedures. Calibration may be required if the monitor fails certain functional tests or after a circuit board is replaced. Monitor disassembly is required for calibration. Always perform this functional verification procedure after performing any calibration. This procedure contains additional tests that are not included in calibration procedures. The monitor Service Menus provide access to internal software routines that are required during the functional verification procedure. Service Menus provide features to test and verify the NIBP (cuff) channel, display, invasive pressure channel, and printer. Refer to “Overview” on page 5 for information about the Service Menus.

Self tests Many functions, such as alarms, waveform and scale sizing, and printer control, are software operations. During the monitor’s power-up self-test, the integrity of all programming is checked first. If software testing is successful, hardware tests are initiated. If all testing is successful, the monitor is ready for use. (See “Screen messages” on page 55 for information on error messages.)

14

Functional verification

Welch Allyn Propaq CS Vital Signs Monitor

Required equipment You will need the following equipment to verify that all functions of the monitor operate correctly. All test equipment must be calibrated to function within parameters specified by the manufacturer, and must be traceable to a national calibration standard. Some equipment can be manufactured. See “Manufacturable test equipment” on page 135 for information on manufacturable test equipment. Description Luer connector, male, for use with 1/8” I.D. tubing (Value Plastics, MTLL230-1) Luer connector, female, for use with 1/8” I.D. tubing (Value Plastics, FTLL230-1) Test water trap, Welch Allyn, 008-0370-00 1/8” inside diameter tubing Flow meter, Cole Parmer E 32000-06, 200ml/min. or equivalent 0 to 300 mm Hg calibrated digital pressure meter, with inflation squeeze bulb (Netech, Digamano, or equivalent) 50 MHz triggered sweep oscilloscope Variable dc power supply, 0-28 V, 3A with voltage and current metering Patient simulator, Fluke (Dynatech/Nevada) 213A, 214A, 215A, or 217A with IBP, Temperature, and EGG Cable/Leads Adult cuff (provided with monitor); Neonatal cuff #3; 3 cm diameter solid cylinder; solid cylindrical object about the size of an adult’s arm Welch Allyn cuff calibration kit, Welch Allyn PN 008-0012-XX Power supply adapter cable, Welch Allyn PN 008-0290-00 Physio-Control LIFEPAK 5 or LIFEPAK 6s with appropriate Welch Allyn Defib Sync adapter to use as Defib Sync Marker pulse source Propaq ac power adapter (provided with the monitor) Safety analyzer, Fluke (Dynatech/Nevada), 431F-1D or equivalent Rod-L Model M100AVS5 high-voltage potential (hi-pot) tester, or equivalent Static-free work area SpO2 Simulator, Fluke (Biotek) Index 2 XL/XLFE Test gas source: dry 4% to 10% CO2, balance air (with flow meter). Gas may be between 4% and 10%, but exact CO2 concentration must be certified to ±0.01. (Convert percentage to partial pressure (mm Hg) as instructed in “Partial pressure of test gas source” on page 31.)a Two rubber test tube stoppers, with 1/8” to 1/4” holes drilled through (for CO2 tests) a.

Of the gas tolerance available, usually described as ±0.03% absolute, the container must contain at least 2,000 psi grams of gas, to be within ±0.01% of the certified percentage of gas stated on the tag supplied by the vendor. The actual percentage of gas in the container may vary from lot to lot.

Service Manual

Functional verification

15

Safety tests The following two safety tests, a risk (leakage) current safety check and a dielectric strength integrity (hi-pot) test, must be performed whenever the monitor has been opened for calibration or repair. Note

A hi-pot test is only required if the monitor has been opened.

Risk (leakage) current test A risk (leakage) current test must be performed to verify that the patient remains electrically isolated from the power circuits of the monitor. Check leakage currents using a Fluke (Dynatech/Nevada) 431F-1D safety analyzer or its equivalent. The source current should not exceed 10μA rms. The sink current, measured between the isolated patient connections (ECG) and the dc power input connector of the monitor, should not exceed 20μA rms. See the analyzer's operator's manual for the proper safety check procedure. Note

Because of the all-insulated construction of the monitor, an Enclosure Leakage Current Test to ground is not necessary.

Table 3. Electrical connections for patient risk (leakage) current safety tests Safety test

Power adapter

Source current

Sink current

Monitor dc input

Monitor cable

Safety analyzer

Plugged into analyzer Connected to power outlet (power adapter adapter switch on)

RA LA LL C RL

RA LA LL C RL

Not used

RA LA LL C RL

RA LA LL C RL

Connected to ground connector on analyzer

16

Functional verification

Welch Allyn Propaq CS Vital Signs Monitor

Dielectric strength (Hi-Pot) test Because of the close spacings of the monitor's internal components and the critical positioning of the insulation sheet within the monitor, Welch Allyn recommends that a dielectric strength test be performed following any procedure in which the monitor is opened. WARNING The Hi-Pot test is extremely hazardous. Only qualified service personnel should perform this test. Conduct the test only on an insulated table top, away from other people and equipment. Use a Rod-L Model M100AVS5 high-voltage potential tester, or equivalent. Refer to the Rod-L instruction manual for operating information and safety recommendations. 1.

Set the parameters of the high voltage tester per the ECG input connector specifications in the table below.

Table 4. Summary of connection points and high-voltage test parameters Tester's high-voltage terminal connection

Tester's grounded return connection

High-voltage test parameters

ECG Input Connector: all ECG leads connected together

DC input connector; all pins connected Output: 4000 V ac rms together Current Limit: 2.5 mA Ramp-up: 8 seconds Dwell: 1 second

Nurse Call Output Connector: Pins 1 and 3 connected together (use 0080634-XX cable)

DC input connector; all pins connected Output voltage: 1500 V ac rms together Output Current Limit: 2.5 mA Ramp-up: 8 seconds Dwell time: 1 second

2. Connect the high-voltage output lead of the tester to all ECG leads, using a dedicated patient cable reserved for use only in such tests. 3. Connect the tester's chassis-connected return lead to the monitor's dc input connector, using a suitable plug. 4. Apply the test voltage for one second. The tester must not indicate dielectric breakdown. WARNING If any dielectric breakdown occurs, do not use the monitor. All internal sheet insulation barriers must be properly installed. Check the monitor to determine the cause of dielectric breakdown; then repair the monitor or return the monitor to Welch Allyn for repair. If the monitor has the Nurse Call Option, continue with steps 5 to 8: 5. Remove the ECG connection from the monitor and the tester’s high voltage output lead. 6. Set the parameters of the high-voltage tester per the Nurse Call Output Connector in the table “Summary of connection points and high-voltage test parameters” on page 16 (be sure to reduce the test voltage). 7.

Connect a 008-0634-XX Nurse Call Cable to the Nurse Call Output Connector on the monitor. Connect the open pins 1 and 3 of the cable to the high voltage output lead.

8. Apply the test voltage for one second and check that the tester does not alarm.

Service Manual

Functional verification

17

Functional verification Perform the functional verification with the monitor fully assembled. If the monitor has been stored for longer than one month without the monitor connected to the ac adapter (for recharging), the battery voltage must be checked. The battery must be replaced if it cannot hold a charge. Refer to “Battery capacity check” on page 57. Note

See Update to Directions for Use, software version 3.6X and greater, for changes to patient alarms and equipment alerts. Impedance pneumography (RESP) is an optional feature. Ignore references to RESP in this procedure if it is not installed. If you plan to use a Fluke (Dynatech/Nevada) model 213A, 215A, or 217A Patient Simulator to simultaneously simulate ECG and invasive blood pressure, see “Fluke patient simulator modification” on page 137 for important information. Before starting the verification procedure, charge the battery for at least 8 hours with the monitor turned off. (Charge for 12 hours if a printer or SpO2 module is attached.)

Power system The following steps check the integrity of the monitor’s power system. 1.

Turn the ac power adapter’s power switch off.

2. Plug the ac power adapter into an ac mains receptacle and connect it to the monitor’s right side panel dc power connector. 3. Check that the green LED charging indicator on the monitor’s right side panel is off. 4. Turn on the power adapter’s power switch. 5. Check that the green LED on the power adapter turns on and that the green LED charging indicator on the monitor’s right side panel turns on. 6. Disconnect the power adapter from the monitor. Check that the monitor’s green LED charging indicator on the right side panel turns off. Caution In the next steps, carefully check for proper polarity of the connection between the power supply and monitor. If voltage is applied with the wrong polarity, it will open the right side panel fuse (F1). Refer to the figure below to verify proper polarity. 7.

Set the dc power supply meter to Volts and turn the power switch on; set it for 15.0V ± 0.1V.

8. Turn off the dc power supply. 9. Using the Welch Allyn dc power supply adapter cable, refer to the figure below for polarity and connect the dc power supply to the monitor's dc input connector on the right side panel.