Welch Allyn SureTemp 690 Service manual

Service Manual

690 Menu

692 Menu

SureTemp® Plus

Model 690 and 692 Thermometers

Part No. 71221-0000 Rev. D

Welch Allyn, Inc. 7420 Carroll Road San Diego, CA 92121

© 2003 by Welch Allyn, Inc. All rights reserved. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, without prior consent in writing from Welch Allyn, Inc. Printed in the USA

CaviCide

is a registered trademark of Metrex Research Corporation (800) 841-1428. Printed in the USA. U.S. Patent 5,632,555. Additional U.S. and foreign patents pending.

AGENCY APPROVALS

CERTIFIED TO: CAN/CSA STD C22.2 NO. 601.1

CONFORMS TO: IEC 60601-1, 60601-1-2, UL STD 2601-1

WELCH ALLYN PTY LTD 5/38-46 SOUTH STREET RYDALMERE NSW 2116 AUSTRALIA

EMC Framework of Australia

Authorized European Representative Address: European Regulatory Manager Welch Allyn Ltd. Navan Business Park Dublin Road Navan, County Meath Republic of Ireland Tel: 353-46-67700 Fax: 353-46-27128

The CE mark on this product indicates that the product has been tested to and conforms with the provisions noted within the 93/42/EEC Medical Device Directive.

Electromagnetic Immunity and Emissions Declaration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Immunity Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Emissions Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1 About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1.1 Related Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 Technical Support and Service Centers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Return Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Safety and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.5 Classifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Basic System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.1 Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.2 Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.3 Probe well. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.4 Probe covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.5 Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.6 Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Model Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Operating Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.1 Instrument Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.2 Power-On Self Test (POST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.3 Low Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.3.4 Predict Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3.5 Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.6 Pulse Timer Mode (Model 692 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.7 Backlight (Model 692 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.8 Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.9 F/C Conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3.10 Temperature Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3.11 Biotech Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Instrument Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.4.1 Temperature Count Security Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.4.2 Instant-On Security Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Six-Month Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 Standard Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3.1 Cleaning the Thermometer and Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3.2 Cleaning The Removable Probe Well. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.4 Replacing the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SureTemp® Plus Service Manual i

3.5 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.5.1 Cal-Key Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.5.2 Model 9600 Calibration Tester Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 Types of Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.1 Battery Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.2 Ambient Temperature Out of Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.3 Patient Temperature Out of Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.4 Probe Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.5 Instrument Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.6 Error Codes: Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Field Serviceable Repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3 Field Serviceable Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1 Temperature Probes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.1.2 Probe Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.1.3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.1.4 Low Battery Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.1.5 Temperature Measurement and Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Appendix A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix B Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

ii 71221-0000 Rev. D

Electromagnetic Immunity and Emissions Declaration

Immunity Standard

IEC Basic Standard IEC 60601-1-2 2001

± 6kV

Electrostatic discharge IEC 61000-4-2

± 8kV

c c

RF EMF Immunity IEC 61000-4-3

Magnetic field IEC 61000-4-8

3/10 V/m 80 MHz-2.5GHz

3A/m 150kHz-80MHz

Emissions Summary

The SureTemp® Plus model 690 and 692 thermometers are intended for use in the electromagnetic environment specified below. The customer or the user of the model 690 and 692 should assure that it is used in such an environment.

Guidance and Manufacturer’s declaration - electromagnetic emissions

Electromagnetic

Emissions test Compliance

RF emissions CISPR 11

Harmonic emissions IEC 61000-3-2

Voltage fluctuations and flicker emissions IEC 61000-3-3

Group 1 Class B

Complies

environment-guidance

The SureTemp 690 and 692 Thermometers are suitable for use in all establishments, including establishments that are connected to the public low-voltage power supply network.

Plus model

SureTemp® Plus Service Manual 1

1. General Information

1.1 About this Manual

This manual describes maintenance and troubleshooting proced ur es for the Sur eTemp® Plus Model 690 and 692 Thermometers. Most topics and procedures described in this manual are applicable to both products. Where there are differences, it is noted which product the topic refers to.

1.1.1 Related Document

End-user operation of the Model 690 and 692 Thermometers is covered in the SureTemp® Plus Model 690 and 692 Operator's Manual PN 71213-0000.

1.2 Technical Support and Service Centers

USA Customers

Welch Allyn Inc. Technical Service Center

7420 Carroll Road San Diego, CA 92121-2334 USA Tel: (800) 535-6663 / (858) 621-6600 Fax: (858) 621-6611

INTERNATIONAL Customers

Speidel + Keller GmbH Co. + KG

Technical Service Center Zollerstrasse 2-4 72417 Jungingen Germany Tel: 011 49 7477 927173 Fax: 011 49 7477 927293

Welch Allyn Ltd. Singapore

300 Beach Road #25-08 The Concourse Singapore 199555 Republic of Singapore Tel: 011 656 291 0882 Fax: 011 656 291 5780

Welch Allyn China

Room 708 Central Plaza No. 277 Huang Pi Bei Rd. Huang Pu District Shanghai, 200003 China Tel: 011-86-21-63279631 Fax: 011-82-61-63279632

CANADA Customers

Welch Allyn Canada Limited Technical Service Center 160 Matheson Blvd., E, Unit Mississauga, Ontario L4Z Canada Tel: (905) 890-0004 / (800) 561-8797 Fax: (905) 890-0008

Welch Allyn Australia Pty. Ltd.

Technical Service Center 38-46 South Street Rydalmere NSW 2116 Australia Tel: 011 612 9638 3000 Fax: 011 612 9638 3500

Welch Allyn UK Ltd.

Cublington Road Aston Abbotts Buckinghamshire HP22 4ND Tel: 011-0207-365-6780 Fax: 011-0207-365-9694

LATIN AMERICA Customers

MDI International Technical Service Center 7324 S.W. 48th Street Miami, FL 33155 USA Tel: (305) 669-9003 Fax: (305) 669-8951

Welch Allyn France SARL

814 rue Charles de Gaulle 77100 Mareuil les Meaux France Tel: 011-33-1-6009-3366 Fax: 011-33-1-6009 6797

2 71221-0000 Rev. D

1.3 Return Procedure

Please contact Welch Allyn® Customer Care at (800) 535-6663 before returning a Model 690 or 692 Thermometer to the factory for service.

If you are authorized to return a thermometer to Welch Allyn:

1. Contact Welch Allyn and request a Return Mater ial Auth o riza tion Num be r (RM A) .

2. Repackage the thermometer carefully in its original box or any sturdy carton with enough

packing material to prevent damage. List the RMA # on the shipping label, along with the authorized service center address listed in Section 1.2, Technical Support and Service Centers.

3. Include a note that describes the problem, RMA number, return address, contact name,

telephone number, and any other necessary information. Ship the thermome ter to to the authorized service center nearest you. See Sec tio n 1. 2, T ech n ica l Supp or t an d Ser vice Centers.

1.4 Safety and Warnings

• In order to obtain accurate and reliable temper ature results an d ensure patient safe ty, it is

important that this manual is read thoroughly prior to using the instrume nt. If you have any technical or clinical questions concerning the thermometer’s use and/or care, please contact the Welch Allyn Customer Service Department.

• Use single-use Welch Allyn disposable probe covers to limit patient cross-contamination.

The use of any other probe cover may produce temper ature measur ement errors o r result in inaccurate readings.

• Do not take a patient’s temperature without using a Welch Allyn disposable probe cover.

Doing so can cause patient discomfort, patient cross contamination, and erroneous temperature readings.

• Long-term continuous monitoring beyond three to five minutes is not recommended in any

mode.

• Biting the probe tip while taking a temperature may result in damage to the probe.

• Oral/axillary probes (blue ejection button at top of probe) and blue oral/axillary removable

probe wells are used for taking oral and axillary temperatures only. Rectal probes (red ejection button) and red rectal removable probe wells are used for taking rectal temperatures only. Use of the probe at the wrong site will result in temperature errors. Use of the incorrect removable probe well could result in patient cross contamination.

• To ensure patient safety and temperature measurement accuracy, use only accessories

and supplies recommended or supplied by Welch Allyn.

• Equipment is not suitable for use in the presence of a flammable anesthetic mixture with

air or with oxygen or nitrous oxide.

• The thermometer case, connectors, and probe are not waterproof. Do not imme rse or drip

fluids on these items. Should this occur, dry the device with warm air. Check all operating functions for proper operation.

• Do not take an axillary temperature through patient’s clothing. Direct probe cover to skin

contact is required.

SureTemp® Plus Service Manual 3

• The Welch Allyn SureTemp Plus thermometer consists of high quality precision parts.

Protect it from severe impact and shock. A qualified service technician must check any SureTemp Plus thermometer which is dropped or damaged to ensure proper operation prior to further use. Do not use the thermometer if you notice any signs of damage to the probe or instrument. Contact the Welch Allyn Customer Service Department for assistance.

• Welch Allyn recommends that batteries are removed for long term storage since alkaline

batteries can deteriorate and leak over extended periods of time, and possibly cause damage to the thermometer.

• Do not autoclave. Please note the cleaning procedures described on page 14 of this

manual.

• Do not use this instrument for any purpose other than that specified in this manual. Doing

so will invalidate the instrument’s warranty.

• This thermometer complies with current required standards for electromagnetic

interference and should not present a problem to other equipment nor is it effected by other devices. As a precaution, avoid using this device in close proximity to other equipment.

1.5 Classifications

Type of protection against electric shock :

Degree of protection against

electric shock:

Degree of protection against

ingress of liquids:

Degree of safety in the

presence of flammable

anesthetics:

Mode of operation:

Internally powered equipment Type BF applied part

Not protected

Equipment not suitable for use with flammable anesthetics

Continuous

4 71221-0000 Rev. D

2. Operating Characteristics

2.1 Basic System Description

The Welch Allyn® SureTemp® Plus Model 690 and 692 thermometers are portable electronic thermistor thermometers. Users can measure a patient's temperature in the oral, axillary, and rectal body sites of adult, pediatric, and newborn patients.

Probe

Probe Cover Ejection Button

Thermometer

LCD Display

Celsius/Fahrenheit Toggle Button

Pulse Timer Button (M692 only)

Recall Button

Mode Selection Button

Box of Probe Covers

Removable Probe Well

Latching Probe Connector

Battery Door/Probe Cover Storage Holder

Figure 1: Model 692 Thermometer

The thermometers consist of six main components: the instrument, the probe, the removable probe well, the probe cover, the batteries, and the wall mount.

2.1.1 Instrument

The instrument includes a removable probe well and detachable probe.

2.1.2 Probe

The detachable probes are available in short (standard) or long cord versions and include a mechanical probe cover ejection mechanism, which is triggered by the user through a simple finger press. The probes are designed for easy exchange in the clinical environment.

• The short (standard) coiled cord probe stretches to approximately 4' and has a retracted

length of approximately 10".

• The long version stretches to approximately 9’ and has a retracted length of

approximately 28“.

SureTemp® Plus Service Manual 5

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