Technical Service Manual
146 Pages
Preview
Page 1
Technical Service Manual Transport Incubator TI500/TI500-1/TI500-1E/TI500-1C
WARNING! Each servicing and/or testing of the device requires full understanding of this Technical Service Manual. Carefully read the Instructions for Use prior to any use of the device.
Revision I 6016.012 MU00916
TI500
General
© 2007 by Draeger Medical Systems, Inc. ALL RIGHTS RESERVED. No part of this text shall be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information or retrieval system without written permission from Draeger Medical Systems, Inc. The information in this manual is confidential and may not be disclosed to third parties without the prior written consent of Draeger Medical Systems, Inc. Eighth Edition First Printing 1999 Printed in the USA Air-Shields® is a registered trademark of Draeger Medical Systems, Inc. Bio-Tek® is a registered trademark of Bio-Tek Instruments, Inc. Critter Covers® is a registered trademark of Draeger Medical Systems, Inc. FERNO® is a registered trademark of Ferno-Washington, Inc. Fluke® is a registered trademark of Fluke Corporation. Globe-Trotter™ is a trademark of Draeger Medical Systems, Inc. Kleenaseptic® is a registered trademark of Predicted Environments, Inc. Loctite® is a registered trademark of Loctite Corporation. Molykote® is a registered trademark of Alpha Molykote Corporation. Nylok® is a registered trademark of Nylok Fastener Corporation.
Plastite® is a registered trademark of Research Engineering & Manufacturing, Inc. Plexiglas® is a registered trademark of Rohm and Haas Company. Teflon® is a registered trademark of E. I. du Pont and de Nemours and Company. Tektronix™ is a trademark of Tektronix, Inc.
Copyright reserved.
Revision G_ Released_Printed on_28.06.07_L6016012_General.fm
Oilite® is a registered trademark of Beemer Precision, Incorporated.
Transzorb® is a registered trademark of General Semiconductor, Inc. Variac® is a registered trademark of General Radio Company.
6016.012
3
General
TI500 Velcro® is a registered trademark of Velcro Industries, BV (a Dutch corporation). The information contained in this manual is subject to change without notice. Draeger Medical Systems, Inc. makes no commitment to update or keep current, the information contained in this manual.
4
6016.012
Revision G_ Released_Printed on_28.06.07_L6016012_General.fm
Copyright reserved.
Additional copies of this manual can be obtained from Draeger Medical Systems.
Contents General 1
Advisory ... 14
2
Important information ... 14 2.1
Symbols and Definitions ... 14
R6016012_service_manualTOC.fm 28.06.07
Copyright reserved.
Introduction 1
Purpose ... 18
2
Audience ... 18
3
Organization ... 18 3.1
Introduction ... 18
3.2
Troubleshooting Procedures ... 18
3.3
Theory of Operation ... 18
3.4
Removal, Replacement, and Adjustment Procedures ... 18
3.5
General Procedures ... 18
3.6
Accessories ... 18
3.7
Annex ... 18
4
Typographical Conventions ... 18
5
Technical Definitions ... 21
6
Overview ... 22
7
Operating Precautions ... 22
8
Features ... 22 8.1
Temperature Control ... 22
5
Contents 8.2
8.3
8.2.1
High Temperature Alarm ... 23
8.2.2
Sensor Alarm ... 23
8.2.3
High Heater Temperature Alarm ... 23
8.2.4
Airflow Alarm ... 23
8.2.5
Low DC Alarm ... 23
8.2.6
Power Failure Alarm ... 23
Adjustable Stand Assembly (Accessory) ... 23
9.1
Physical Description ... 23
9.2
Environmental Description ...24
9.3
Electrical Description ... 25
9.4
Regulations, Standards, and Codes ... 26
9.5
Model Identification and Series Changes ... 26
9.6
Safety Tips ... 26
9.7
Warning and Caution Labels ... 32
6
R6016012_service_manualTOC.fm 28.06.07
Specifications ... 23
Copyright reserved.
9
Alarms ... 22
Contents
1
Getting Started ... 34
2
Initial Actions ... 34
3
Function Checks and General Operation Checkout ... 34
4
Mechanical Checkout ... 39
5
Final Actions ... 42
6
Power Distribution Does Not Operate Properly ... 43
7
The Auto-Test Function Does Not Operate Properly ... 47
8
The Air Temperature Display Does Not Function Properly ... 48
9
The Sensor Alarm Does Not Activate ... 48
10
The Baby Temperature Alarm Does Not Function Properly ... 48
11
The Power Failure Alarm Does Not Function Properly ... 49
12
The Set Temp Indicator Does Not Function Properly ... 49
13
The High Temperature Alarm Does Not Function Properly ... 49
Theory of Operation
Copyright reserved.
R6016012_service_manualTOC.fm 28.06.07
Troubleshooting Procedures
1
Electrical System ... 52
2
Theory of Operation ... 52
3
Detailed Circuit Description ... 52 7
Contents 3.1
Input Power Circuit Sources ... 52 3.1.1
External AC Power Source ... 52
3.1.2
External 12V/28V DC Power Source ... 53
3.1.3
Main 12V/28V Circuit ... 53
3.1.4
DC 12V/28V Discriminator ... 53
3.1.5
Internal Batteries ... 53
3.2
Power Source Priority ... 53
3.3
Battery Charger ... 54
3.4
Heater Drivers ... 54 3.4.1
3.5
3.6
Power Hexfets ... 54
Switching Power Supplies ... 55 3.5.1
6 V ...55
3.5.2
12 V ... 55
Fault Protection ... 55 3.6.1
Circuit Breakers ... 55
3.6.2
Reverse Voltage ... 55
3.6.3
Safety Relay ... 55
3.6.4
Fan Sense ... 55
3.7
Exam Lights ... 56
3.8
Feed-Through Connections ... 56
3.9
Controller P.C. Board ... 56
3.10.1
On/Off Switch ... 56
3.10.2
Regulators ... 56
8
3.11.1
Probe ... 57
3.11.2
Skin Bridge ... 57
3.11.3
Signal Amplifier ... 57
Copyright reserved.
3.11 Skin Temperature ... 57
R6016012_service_manualTOC.fm 28.06.07
3.10 Power On/Off Circuitry ... 56
Contents 3.11.4
Analog/Digital (A/D) Converter and Display ... 57
3.11.5
Calibration Check ... 58
3.12 Air-Temperature-Monitoring Circuitry ... 58 3.12.1
Probe ... 58
3.12.2
Bridge ... 58
3.12.3
Amplifier ... 58
3.12.4
A/D Converter and Display ... 58
3.12.5
Offset ... 59
3.13 Setpoint Circuitry ... 59 3.13.1
Read/Set Control Latch ... 59
3.13.2
Setpoint Voltage ... 59
3.14 Air-Temperature-Controlling Circuitry ... 61 3.14.1
Probe ... 61
3.14.2
Amplifier ... 62
3.14.3
Error Amplifier ... 62
3.14.4
Power Heater Control Circuit ... 62
3.15 Clock and Timing Circuitry ... 62
R6016012_service_manualTOC.fm 28.06.07
Copyright reserved.
3.16 Alarms ... 63 3.16.1
High Temp ... 63
3.16.2
Heater Temp ... 64
3.16.3
Sensor ... 64
3.16.4
Low DC ... 64
3.16.5
Airflow ... 65
3.16.6
Power Failure ... 65
3.16.7
Logic Circuits for the Alarms ... 66
3.17 Alarm Indicators ... 67 3.17.1
Audible Output ... 67
3.17.2
Alarm Silence and Reset ... 67
9
Contents 3.18 Auto-Test Function ... 67
Removal, Replacement and Adjustment Procedures 1
Control Panel Assembly ... 70
2
Power Chassis ... 70
3
Battery Tray ... 72
4
Battery ... 74
5
Heater Assembly ... 75
6
Thermostat ... 77
7
Fan Motor ... 78
8
Controller P.C. Board ... 81
9
Power P.C. Board ... 82
General Procedures
10
1.1
Steam Cleaning ... 86
1.2
Cleaning Hard to Clean Spots ... 87
1.3
Disinfecting ... 87
Disassembly, Cleaning, and Assembly ... 87 2.1
Disassembly ... 87
2.2
Cleaning ... 89
R6016012_service_manualTOC.fm 28.06.07
2
Cleaning ... 86
Copyright reserved.
1
Contents 2.3 3
Assembly ... 91
Component Handling ... 92 3.1
P.C. Board ... 92
4
Lubrication Requirements ... 93
5
Preventive Maintenance ... 93
6
5.1
Preventive Maintenance Schedule ... 94
5.2
Preventive Maintenance Checklist ... 95
Installation ... 95 6.1
Unpacking ... 96
6.2
Assembly ... 96
7
Battery Maintenance ... 100
8
Calibration ... 101
9
Tool and Supply Requirements ... 106
Accessories 1
Accessories ... 108
Parts catalog ... 109 Copyright reserved.
R6016012_service_manualTOC.fm 28.06.07
Annex
11
12
R6016012_service_manualTOC.fm 28.06.07
Copyright reserved.
Contents
General
13
General 1
Advisory
TI500 Dräger Medical is liable for the safety of its equipment only if maintenance, repair, and modifications are performed by authorized personnel, and if components affecting the equipment's safety are replaced with Dräger Medical spare parts. Any modification or repair not done by Dräger Medical personnel must be documented. Such documentation must: •
be signed and dated
•
contain the name of the company performing the work
•
describe the changes made
•
describe any equipment performance changes.
It is the responsibility of the user to contact Dräger Medical to determine warranty status and/or liabilities if other than an authorized Dräger Medical technician repairs or makes modifications to medical devices.
2
Important information
This Technical Documentation/Service Manual conforms to the International Standard IEC 60601-1. Read each step in every procedure thoroughly before beginning any test. Always use the proper tools and specified test equipment. If you deviate from the instructions and/or recommendations in this Technical Documentation/Service Manual, the equipment may operate improperly or unsafely, or the equipment could be damaged. The maintenance procedures described in this Technical Documentation/Service Manual may be performed by qualified service personnel only. These maintenance procedures do not replace inspections and servicing by Dräger Medical.
Unless otherwise stated, reference is made to laws, regulations or standards (as amended) applicable in the Federal Republic of Germany.
Symbols and Definitions This symbol is used to provide important information that, if ignored, could lead directly to a patient’s or operator’s injury. It is also used to provide important information that, if ignored, could lead directly to equipment damage and, indirectly, to a patient’s injury.
14
6016.012
Copyright reserved.
2.1
G_ Released_Printed on_28.06.07_XIEC_INT_General.fm
Strictly follow the Instructions for Use/Operating Instructions! This Technical Documentation does not replace the Instructions for Use/Operating Instructions. Any use of the product requires full understanding and strict observation of the product-specific Instructions for Use/Operating Instructions.
TI500
General The following three alert levels are used in this documentation to indicate a hazardous situation and how to avoid it. Danger Danger indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Warning Warning indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Caution Caution indicates a hazardous situation which, if not avoided, may result in minor or moderate injury. Caution may also be used to alert against unsafe practices. Note This symbol is used to provide additional information, operating tips, or maintenance suggestions.
This pictograph is used to alert against unsafe practices when handling electrostatic sensitive devices (ESD). It prompts the reader to observe standard precautions for protecting the equipment from static electricity.
Inspection
= examination of actual condition
Maintenance
= measures to maintain specified condition
Repair
= measures to restore specified condition
Servicing
= inspection, maintenance, and repair
Copyright reserved.
G_ Released_Printed on_28.06.07_XIEC_INT_General.fm
Definitions according to German standard DIN 31051:
6016.012
15
TI500
16
6016.012
G Released_Printed on_28.06.07_XIEC_INT_General.fm
Copyright reserved.
General
Introduction
17
TI500
1
Purpose
This manual provides requirements for the Transport Incubator normal operation and maintenance. It also includes parts lists for ordering replacement components.
2
Audience
This manual is intended for use by only facility-authorized personnel. Failure to observe this restriction can result in severe injury to people and serious damage to equipment.
3
Organization
This manual contains eight chapters.
3.1
Introduction
In addition to a brief description of this service manual, chapter “Introduction” also provides a product overview.
3.2
Troubleshooting Procedures
Repair analysis procedures are contained in this chapter. Use these procedures to gather information, identify the maintenance need, and verify the effectiveness of the repair.
3.3
Theory of Operation
This chapter describes the application of the mechanical, electrical, and hydraulic systems employed in this product.
3.4
Removal, Replacement, and Adjustment Procedures
This chapter contains the detailed maintenance procedures determined necessary in chapter “Troubleshooting Procedures”.
3.5
General Procedures
Cleaning, preventive maintenance, and other general procedures are described in this chapter.
3.6
Accessories
A list of additional products, that can be used in conjunction with the Transport Incubator, is available in this chapter. Installation procedures for these accessories are also included.
3.7
Annex
This chapter contains the illustrated parts lists.
4
Typographical Conventions
This manual contains different typefaces and icons designed to improve readability and increase understanding of its content. Note the following examples: Standard text-used for regular information.
•
Boldface text-emphasizes a word or phrase.
•
The symbol below highlights a CAUGHT HAZARD WARNING:
Copyright reserved.
•
18
6016.012
G_ Released_Printed on_28.06.07_K6016012_chapter_1_introduction.fm
Introduction
TI500
Introduction
Figure 1
•
The symbol below highlights a CHEMICAL HAZARD WARNING:
Figure 2
•
Caught Hazard Warning
Chemical Hazard Warning
The symbol below highlights an ELECTRICAL SHOCK HAZARD WARNING:
SHOCK HAZARD
The Transport Incubator contains different icons designed to increase understanding. Note the following examples: The symbol below indicates “Attention, consult accompanying documents:”
Figure 3 Copyright reserved.
G_ Released_Printed on_28.06.07_K6016012_chapter_1_introduction.fm
•
•
6016.012
Attention, Consult Accompanying Documents
The symbol below indicates “Type B equipment with an F-type isolated (floating) applied part:”
19
Introduction
TI500
Figure 4
The symbol below indicates the Battery indicator:
Figure 5
The symbol below indicates the Set Temperature Down arrow key:
Figure 6
•
The symbol below indicates the Set Temperature Up arrow key:
Figure 7
•
20
Set Temperature Down Arrow Key
Set Temperature Up Arrow Key
The symbol below indicates the Silence/Reset key:
6016.012
G_ Released_Printed on_28.06.07_K6016012_chapter_1_introduction.fm
•
Battery Indicator
Copyright reserved.
•
Type B Equipment with an F-Type Isolated (Floating) Applied Part
TI500
Introduction
Figure 8
5
Technical Definitions
Silence/Reset Key
This manual contains different technical terms. For the technical definitions of these terms, see Table 1. Table 1
Technical Definitions
Copyright reserved.
G_ Released_Printed on_28.06.07_K6016012_chapter_1_introduction.fm
Term
6016.012
Definition
Setpoint
The temperature of the incubator selected for operation during use.
Incubator temperature
The air temperature at a point 10 cm (4") above and centered over the mattress surface.
Temperature equilibrium
The condition reached when the average incubator temperature does not vary more than 0.2 °C over a period of one hour.
Temperature overshoot
The amount by which the incubator’s temperature exceeds the average incubator temperature at temperature equilibrium when the setpoint changes from 30 °C (86 °F) to 34 °C (93 °F).
Temperature rise time
The time required for the incubator’s temperature to rise to 34 °C (93 °F) from an ambient of 23 °C (73 °F) with a 36 °C (97 °F) setpoint.
Temperature uniformity
The amount by which the average temperature at each of the four points 10 cm (4") above the mattress surface differs from the average incubator temperature at temperature equilibrium. The four points are the centers of the four areas formed by lines dividing the width and length of the mattress surface evenly.
21