Welch Allyn CP 150 User manual

CP 150 12-lead resting
electrocardiograph
Service manual

© 2013 Welch Allyn. All rights are reserved. To support the intended use of the product described in this
publication, the purchaser of the product is permitted to copy this publication, for internal distribution
only, from the media provided by Welch Allyn. No other use, reproduction, or distribution of this
publication, or any part of it, is permitted without written permission from Welch Allyn. Welch Allyn
assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that
may result from failure to use this product in accordance with the instructions, cautions, warnings, or
statement of intended use published in this manual.
Welch Allyn is a registered trademark of Welch Allyn.
Software in this product is copyright 2013 Welch Allyn. All rights are reserved. The software is protected
by United States of America copyright laws and international treaty provisions applicable worldwide.
Under such laws, the licensee is entitled to use the copy of the software incorporated with this
instrument as intended in the operation of the product in which it is embedded. The software may not be
copied, decompiled, reverse-engineered, disassembled, or otherwise reduced to human-perceivable
form. This is not a sale of the software or any copy of the software; all right, title, and ownership of the
software remain with Welch Allyn.
Welch Allyn Technical Support:
http://www.welchallyn.com/about/company/locations.htm
105323 (printed copy)
Material Number 719489
DIR 80018104 Ver. A
Welch Allyn, Inc.
4341 State Street Road
Skaneateles Falls, NY 13153-0220 USA
www.welchallyn.com

Contents
Symbols ................................................................................................... 1
Safety ....................................................................................................... 5
General warnings ................................................................................................. 5
General cautions .................................................................................................. 7
General safety considerations .............................................................................. 8
Electrostatic discharge (ESD) ............................................................................... 9
Overview ................................................................................................ 11
Purpose and scope ............................................................................................ 11
Technical support services ................................................................................. 11
Service loaners ................................................................................................... 12
Service options .................................................................................................. 12
Repairs ............................................................................................................... 13
Configuration options ......................................................................................... 14
The Welch Allyn Service Tool ............................................................................ 15
Returning products ............................................................................................ 15
Service menu ......................................................................................... 19
Access the Service screen ................................................................................. 19
Performing the full-functional tests .................................................................... 19
Manage tests and other files ............................................................................. 27
Troubleshooting .................................................................................... 29
Symptoms and solutions ................................................................................... 29
Printer ................................................................................................................ 31
User interface .................................................................................................... 33
Post test error messages ................................................................................... 35
Disassembly, repair, and reassembly .................................................. 37
Required tools and equipment ........................................................................... 38
Power down the electrocardiograph .................................................................. 40
Remove the battery ........................................................................................... 40
Separate the top housing assembly from the bottom housing assembly ......... 41
Electrical safety testing ......................................................................... 69
Software updates process .................................................................... 71
Update process .................................................................................................. 71
Export and import of the device configuration ................................................... 72
iii

Field replaceable units .......................................................................... 75
Housing top assembly ...................................................................................... 75
Housing base assembly ..................................................................................... 79
Printer 8 inch assembly tray ............................................................................... 82
Bottom assembly ............................................................................................... 86
Partners in Care service and support agreements ............................................. 90
Service and repair training .................................................................................. 90
Appendices ............................................................................................ 91
Decontamination and cleaning requirements .................................................... 91
Interconnect diagram ......................................................................................... 92
iv Contents CP 150 12-lead resting electrocardiograph

Symbols
Documentation symbols
WARNING The warning statements in
this manual identify conditions or
practices that could lead to illness, injury,
or death.
Caution The caution statements in this
manual identify conditions or practices
that could result in damage to the
equipment or other property, or loss of
data. This definition applies to both
yellow and black and white symbols.
Consult operating instructions.
Power symbols
Power on/standby
(LED off) No AC power is present The battery is absent or faulty
(LED green) AC power is present, and
battery is charged. (LED amber) AC power
is present, and battery is charging.
The battery is charged to the indicated
level
Alternating current Battery is charging
Dangerous voltage Battery door
Fuse Rechargeable battery
1

Protective earth Nonionizing electromagnetic radiation
Equipotential terminal AC input power
Connectivity symbols
USB Ethernet (RJ-45 )
Shipping, storing, and environment symbols
This end up Keep dry
Fragile Relative humidity limit
Temperature limits Atmospheric air-pressure limits
Separate the battery from other
disposables for recycling
Recycle
Separate the device from other
disposables for recycling.
See www.welchallyn.com/weee.
China RoHS (restriction of hazardous
substances) symbols for control of
pollution caused by electronic
information products. 5-year
environment-friendly use period (EFUP)
for batteries. 10-year EFUP for the device.
For details, see the accompanying
documentation.
Lithium ion battery
2Symbols CP 150 12-lead resting electrocardiograph

Miscellaneous symbols
Manufacturer Defibrillation-proof Type CF applied parts
Reference/Model number Serial number
Reorder/Catalog number Batch code
Intertek ETL listed Do not reuse
Electromagnetic compatibility (EMC) information
For information about electromagnetic compatibility (EMC), see the Welch Allyn website.
http://www.welchallyn.com/apps/products/product_category.jsp?catcode=CARDIO
Service manual Symbols 3

4Symbols CP 150 12-lead resting electrocardiograph

Safety
All users of the device must read and understand all safety information presented in this
manual before using or repairing the device.
United States federal law restricts this device to sale, distribution, or use by or on the
order of a licensed medical practitioner.
General warnings
Warnings indicate conditions or practices that could lead to illness, injury, or death.
Warnings related to the environment
WARNING The power cord is considered the disconnect device for
isolating this equipment from supply mains. Do not position the equipment
so that it is difficult to reach or disconnect.
WARNING To avoid a possible explosion, do not use the
electrocardiograph in the presence of flammable anesthetics: mixtures
containing air, oxygen, or nitrous oxide.
WARNING When transporting the electrocardiograph on a cart, tuck the
patient cable away to keep them clear of the wheels and to minimize trip
hazards.
Warnings related to accessories and other equipment
WARNING To avoid the risk of electric shock, this equipment must only
be connected to a supply mains with protective earth.
WARNING For operator and patient safety, peripheral equipment and
accessories that can come in direct patient contact must be in compliance
with all appropriate safety, EMC, and regulatory requirements.
WARNING All signal input and output (I/O) connectors are intended for
connection of only devices complying with IEC 60601-1, or other IEC
standards (for example, IEC 60950), as appropriate to the device.
Connecting additional devices to the electrocardiograph might increase
chassis or patient leakage currents.
5

WARNING The electrocardiograph has not been designed for use with
high-frequency (HF) surgical equipment and does not protect against
hazards to the patient.
WARNING Defective batteries can damage the electrocardiograph.
Visually inspect the battery at least monthly, if the battery shows any signs
of damage or cracking, it must be replaced immediately and only with a
battery approved by Welch Allyn.
WARNING Improper disposal of batteries may create an explosion or
contamination hazard. Never dispose of batteries in refuse containers.
Always recycle batteries according to local regulations.
Warnings related to using the electrocardiograph
WARNING No modification of this equipment is allowed.
WARNING This device captures and presents data reflecting a patient’s
physiological condition. When reviewed by a trained physician or clinician,
this data can be useful in determining a diagnosis. However, the data
should not be used as a sole means for determining a patient’s diagnosis or
prescribing treatment.
WARNING To provide CF protection use only accessories approved by
Welch Allyn. Visit www.welchallyn.com. The use of any other accessories
can result in inaccurate patient data, can damage the equipment, and can
void your product warranty.
WARNING To avoid serious injury or death, take these precautions during
patient defibrillation:
• Avoid contact with the electrocardiograph, patient cable, and patient.
• Verify that the patient leads are properly connected.
• Place defibrillator paddles properly in relation to electrodes.
• After defibrillation, pull each patient lead out of the patient cable and inspect
the tips for charring (black carbon marks). If there is any charring, the patient
cable and individual leads must be replaced. If there is no charring, fully
reinsert the leads into the patient cable. (Charring can occur only if a lead is
not fully inserted into the patient cable before defibrillation.)
WARNING To prevent the spread of infection, take these precautions:
• Dispose of single-use components (for example, electrodes) after using
them once.
• Regularly clean all components that come in contact with patients.
• Avoid ECG testing for patients with open, infectious sores.
WARNING Avoid positioning any leads or cables so that they could easily
trip someone or become wrapped around a patient’s neck.
WARNING To ensure safe use of the device, follow the documented
maintenance procedures.
WARNING Only qualified service personnel should attempt to repair the
electrocardiograph. In case of a malfunction, call Technical Support.
6Safety CP 150 12-lead resting electrocardiograph