GE CARDIOLAB II PLUS AMPLIFIER SERVICE MANUAL_SM_2002938-002_E Cardiolab® II Plus Amplifier Manual Service Manual

Cardiolab® II Plus Amplifier Manual

Service Manual

2002938-002 Revision E

Due to continuing product innovation, specifications in this manual are subject to change without notice.

CARTO is a trademark of Biosense Webster, Inc.
Listed below are GE Medical Systems Information Technologies trademarks used in this document.

®

MAC-LAB

, CARDIOLAB®, CENTRICITY®, TRAM®, TRAMNET®, and TRAM-RAC® are trademarks of GE

Medical Systems Information Technologies registered in the United States Patent and Trademark Office.
All other trademarks contained herein are the property of their respective owners.
© GE Medical Systems Information Technologies, 2006. All rights reserved.

T-2 Cardiolab® II Plus Amplifier Manual 2002938-002E

11 December 2007

CE Marking Information

Compliance

The CardioLab II Plus Amplifier bears CE mark CE-0459 indicating its
conformity with the provisions of the Council Directive 93/42/EEC
concerning medical devices and fulfills the essential requirements of
Annex I of this directive.

For devices manufactured in the United States, the CE mark is applied
under the authority of Notified Body GMED (0459).

The country of manufacture and appropriate Notified Body can be found
on the equipment labeling.

The safety and effectiveness of this device has been verified against
previously distributed devices. Although all standards applicable to
presently marketed devices may not be appropriate for prior devices (i.e.
electromagnetic compatibility standards), this device will not impair the
safe and effective use of those previously distributed devices.

The CardioLab II meets the requirements of EN60601-1-2 (1993-04)
Medical Electrical Equipment, Part 1: General Requirements for Safety,

2. Collateral Standard: Electromagnetic compatibility - Requirements
and tests.

Exception

ECG Parameter
IEC601-1-2 clause 36.202.1 - Immunity: Radiated Immunity –
The level of compliance is less than 1V/m
If operating under the conditions defined in EMC Standard EN60601-1-2

(Radiated Immunity 3V/m), field strengths less than 1V/m may cause
waveform distortions and erroneous numeric data at various
electromagnetic interference (EMI) frequencies.

Recommendations: –
Review the AAMI EMC Committee technical information report (TIR-18)

titled Guidance on electromagnetic compatibility of medical devices for
clinical / biomedical engineers - Part 1: Radiated radio-frequency

2002938-002E Cardiolab® II Plus Amplifier Manual CE-1

electromagnetic energy. This TIR provides a means to evaluate and
manage the EMI environment in the hospital.

The following actions can be taken:

 managing (increasing) distance between sources of EMI and

susceptible devices

 managing (removing) devices that are highly susceptible to EMI
 lower power from internal EMI sources under hospital control (i.e.

paging systems)

 labeling devices susceptible to EMI
 educating staff (nurses and doctors) to be aware of, and to recognize,

potential EMI related problems

CE-2 Cardiolab® II Plus Amplifier Manual 2002938-002E

Contents

CE Marking Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CE-1

Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CE-1

Exception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CE-1

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Manual Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Chapter Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Manual Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Hardware and Software Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Manufacturer Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Equipment Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Classifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Underwriters Laboratories Inc. (UL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Equipment Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Dangers, Warnings, and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Service Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Service Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14

Equipment Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

New Identification Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

Old Identification Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16

2 Equipment Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

CardioLab II Plus Amplifier Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Amplifier Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Accessory Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Required Tools and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2002938-002E Cardiolab® II Plus Amplifier Manual i

Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Internal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Board Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Control Board (PN: 2002344-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 -9

ECG/Pressure/Calibration Board (P/N 2002834-004) . . . . . . . . . . . . . . . . . . . . . . 2-12

Cross-Point Amplifier Board (XPA)(PN: 2002506-004) . . . . . . . . . . . . . . . . . . . . . 2-13

Front Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Back Plane Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Power Board (PN: 2002648-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

CardioLab II Plus Catheter Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18

Stimulator Input Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

ECG 10 Lead Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

10 Lead ECG Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20

Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20

3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Connecting Cables to the Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Disconnecting Cables From the Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Installation Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

A Appendix A – Maintenance and Troubleshooting . . . . . A-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Maintenance/Repair Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Environmental Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Inspection and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Amplifier Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Noise on Intracardiac Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

For real-time testing during a case:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

CardioLab Amplifier Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

Storing and Transporting the Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

Maintenance/Repair Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13

ii Cardiolab® II Plus Amplifier Manual 2002938-002E

B Appendix B– Technical Information . . . . . . . . . . . . . . . . .B-1

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

2002938-002E Cardiolab® II Plus Amplifier Manual i-iii

i-iv Cardiolab® II Plus Amplifier Manual 2002938-002E

1 Introduction

2002938-002E Cardiolab® II Plus Amplifier Manual 1-1

Introduction

Introduction

Revision History

Each page of the document has the document part number and revision
letter at the bottom of the page. The revision letter identifies the
document’s update level.

The revision history of this document is summarized in the table below.

Revision History PN 2002938-002

A June 21, 2000 Initial Release of the manual.
B 15 November 2000 Release B of this manual.
C October 9, 2001 Release C with minor editorial updates.
D 21 July 2006 Revised document.

Manual Purpose

Intended Audience

E 11 December 2007 Updated per GEHmk15561

This manual contains the instructions necessary to service the
CardioLab II Plus Amplifier safely in accordance with its function and
intended use. These instructions include but are not limited to:

 Describing fundamental controls and indicators.
 Operating procedures.
 Connecting and disconnecting detachable parts and accessories.
 Troubleshooting and service procedures.

This manual is intended for the person who maintains and troubleshoots
this equipment.

1-2 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Intended Use

Chapter Content

Introduction

The CardioLab II Plus Amplifier is intended for use in an
electrophysiological catheter laboratory or catheterization laboratory
where ECG, direct cardiac, intracardiac and pressure signals need to be
recorded from a patient. This device is intended for use under the direct
supervision of a licensed health care practitioner.

This manual is organized into the following chapters:

 1. Introduction: Describes the manual contents and provides

general information about safety precautions, service requirements,
equipment symbols and serial number identification.

 2. Equipment Overview: Gives a description of the eq ui pment and

components.

 3. Operation: Describes how to connect and disconnect cables to the

amplifier and provides a list of related user’s manuals and update
guides. Describes the stimulator bypass connections for emergency
pacing.

 Appendix A: Maintenance and Troubleshooting: Describes how

to maintain the equipment and keep it in good working order with a
recommended maintenance schedule, cleaning guidelines, checkout
procedure, and safety tests.

 Appendix B: Technical Info rmation: Provides a complete table of

technical specifications for the CardioLab II Plus Amplifier.

Related Manuals

Below are a list of the related manuals.

Part Number Document

2027332-100 Mac-Lab Operator’s Manual
2027332-101 Cardiolab Operator’s Manual
2027332-102 Centricity Cardiology INW Operator’s Manual
2027332-103 Mac-Lab/Cardiolab System Security Guide

2002938-002E Cardiolab® II Plus Amplifier Manual 1-3

Introduction

Part Number Document

2027332-107 Mac-Lab/Cardiolab System Installation Manual
2027332-109 Mac-Lab/Cardiolab System Service Manual

Manual Conventions

Hardware and Software Terms

The following is a list of conventions used throughout the text of the
manual:

 Hardware items shown in Bold text are keys on the keyboard.
 Italicized items are software terms that identify menu items or

options in various windows.

Safety Information

Safety Messages

The terms danger, warning, and caution are used throughout this
manual to point out hazards and to designate a degree or level or
seriousness. Familiarize yourself with their definitions and significance.

Hazard is defined as a source of potential injury to a person.

DANGER

DEATH OR SERIOUS INJURY — A message which
indicates an imminent hazard which, if not avoided, will
result in death or serious personal injury or product/
property damage.

WARNING

POTENTIAL DEATH OR SERIOUS INJURY — A
message which indicates a potential hazard or unsafe
practice which, if not avoided, could result in death or
serious personal injury or product/property damage.

1-4 Cardiolab® II Plus Amplifier Manu al 2002938-002E

CAUTION

MINOR INJURY OR DATA LOSS — A message which
indicates a potential hazard or unsafe practice which, if
not avoided, could result in minor personal injury or
product/property damage.

NOTE

A message which provides application tips or other useful
information to assure that you get the most from your equipment.

Manufacturer Responsibility

GE Medical Systems Information Technologies is responsible for the
effects of safety, reliability, and performance only if:

 Installation operations, extensions, readjustments, modifications, or

repairs are carried out by persons authorized by GE Medical Systems
Information Technologies.

 The equipment is used in accordance with the instructions for use.
 The user attaches only accessory equipment recommended for

interaction with the amplifier.

Introduction

General

The CardioLab II Plus Amplifier maintains leakage currents below
medical limits with an isolation transformer, which is incorporated in to
the design of the amplifier. Amplifier power should be supplied by a
dedicated power supply on an isolated circuit for proper behavior of the
amplifier.

To ensure patient safety, use only parts and accessories manufactured or
recommended by GE Medical Systems - Information Technologies.

This equipment should only be connected as specified by GE Medical
Systems - Information Technologies. Installation of the equipment
should only be performed by qualified GE Medical Systems - Inf ormation
Technologies service representatives.

Contact GE Medical Systems - Information Technologies before
connecting any device to equipment that is not recommended in this
manual. Only cables and accessory equipment purchased from GE
Medical Systems - Information Technologies should be used in
conjunction with the amplifier.

2002938-002E Cardiolab® II Plus Amplifier Manual 1-5

Introduction

It is important that all of the instructions in this manual be followed,
however, these instructions in no way supersede current medical
practices regarding patient care and safety.

Parts and accessories used must meet the requirements of the applicable
IEC 601 series safety standards, and/or the system configuration must
meet the requirements of the IEC 601-1-1 medical electrical systems
standard.

Refer servicing of amplifiers under warranty to GE Medical Systems ­Information Technologies authorized service personnel. Any attempt to
repair equipment under warranty will void that warranty. It is the
responsibility of users of systems needing service to contact GE Medical
Systems - Information Technologies for servicing of the equipment.

Failure on the part of responsible individuals or institutions to
implement a satisfactory equipment maintenance schedule may lead to
undue equipment failure and possible health hazards.

The use of ACCESSORY equipment not complying with the equi va le nt
safety requirements of this equipment may lead to a reduced level of
safety of the resulting system. Consideration relating to the choice shall
include:

 use of the accessory in the PATIENT VICINITY; and
 evidence that the safety certification of the ACCESSORY has been

performed in accordance to the appropriate IEC 601-1 and/or IEC
601-1-1 harmonized national standard.

The CardioLab II Plus Amplifier is a component/accessory of a Class II
medical device.

Electromagnetic Interference

Interference with the operation or signal integrity of this equipment is
unlikely as a result of proximity to general equipment. The user should
understand that the use of some electrosurgical equipment and medical
generators may cause some level of interference of the amplifier.

Users should be aware of known RF sources, such as radio or TV stations
and hand-held mobile two-way radios, and consider them when installi ng
a medical device or system.

Be aware that adding accessories or components, or modifying the
medical device or system, may degrade the EMI performance. Consult
with qualified personnel regarding changes to the system configuration.

The CardioLab II meets the requirements of EN60601-1-2 (1993-04)
Medical Electrical Equipment, Part 1: General Requirements for Safety,

1-6 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Exception

Introduction

2. Collateral Standard: Electromagnetic compatibility - Requirements
and tests.

ECG Parameter
IEC601-1-2 clause 36.202.1 - Immunity: Radiated Immunity –

The level of compliance is less than 1V/m
If operating under the conditions defined in EMC Standard EN60601-1-2

(Radiated Immunity 3V/m), field strengths less than 1V/m may cause
waveform distortions and erroneous numeric data at various
electromagnetic interference (EMI) frequencies.

Recommendations:

Review the AAMI EMC Committee technical information report (TIR-18)
titled Guidance on electromagnetic compatibility of medical devices for
clinical / biomedical engineers - Part 1: Radiated radio-frequency
electromagnetic energy. This TIR provides a means to evaluate and
manage the EMI environment in the hospital.

Equipment Symbols

The following actions can be taken:

 managing (increasing) distance between sources of EMI and

susceptible devices

 managing (removing) devices that are highly susceptible to EMI
 lower power from internal EMI sources under hospital control (i.e.

paging systems)

 labeling devices susceptible to EMI
 educating staff (nurses and doctors) to be aware of, and to recognize,

potential EMI related problems

The following symbols appear on the equipment.
Attention:

Pay attention to the documents delivered with the equipment.

Type CF Equipment

2002938-002E Cardiolab® II Plus Amplifier Manual 1-7

Introduction

Type CF equipment is specifically designed for applications where a
conductive connection to the heart is directly established.

Type CF Equipment
Type CF equipment that is defibrillator proof.

Isolated (floating) applied part suitable for intentional external and
internal application to the patient including direct cardiac application.
“Paddles” outside the box indicate the applied part is defibrill ato r pro of.

[Medical Standard Definition:] F-type applied part (floating/isolated)
complying with the specified requirements of IEC 60601-1/UL 2601-1/
CSA 601.1. Medical Standards to provide a higher degree of protection
against electric shock than that provided by BF applied parts.

Equipotentiality
A nonessential electrical connection which may be used to connect the

chassis to other equipment to achieve the same potential.

Classifications

The CardioLab II Plus Amplifier is classified, according to IEC-60601-1,
as:

Type of protection against electrical shock I
Degree of protection against electrical

shock
Degree of protection against harmful

ingress of water
Degree of safety of application in the

presence of a flammable anesthetic
mixture with air or with oxygen or nitrous
oxide

Method(s) of sterilization or disinfection
recommended by the manufacturer

Mode of operation Continuous operation

CF—ECG, BP, CIM, Auxiliary Inputs

Ordinary

Not suitable

Not Applicable

1-8 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Introduction

I: Class I equipment
CF: Type CF applied part
Ordinary: Ordinary equipment (enclosed equipment without protection

against ingress of water)
Not Suitable: Equipment not suitable for use in the presence of a

flammable anesthetic mixture with air or with oxygen or nitrous oxide

2002938-002E Cardiolab® II Plus Amplifier Manual 1-9

Introduction

Underwriters Laboratories Inc. (UL)

Underwriters Laboratories, Inc.

Classified by Underwriters Laboratories Inc. with respect to electric
shock, fire, mechanical and other specified hazards, only in accordance
with UL 2601-1, CAN/CSA C22.2 No. 601.1, IEC 60601-1, and, if
required, IEC 60601-2-27, IEC 60601-2-30, IEC 60601-2-34, IEC 60601­1-1.

Equipment Safety

The safety statements presented in this chapter refer to the equipment
in general and, in most cases, apply to all aspects of the product.

The order in which safety statements are presented in no way implies
order of importance.

Dangers, Warnings, and Cautions

There are no dangers that refer to the equipment in general. Specific
Danger statements may be given in the respective sections of this
manual.

DANGER

EXPLOSION — Do not use in the presence of flammable
anesthetics or other flammable gases.

WARNING

EQUIPMENT DAMAGE — Only connect UL 544 or UL
2601-1 listed or IEC certified medical equipment.

If fluid of any kind that should leak into the system,
discontinue use of the equipment and contact GE Medical
Systems Information Technologies immediately.

Do not allow any foreign materials such as fluids to come
in contact with the CardioLab II Plus Amplifier.

1-10 Cardiolab® II Plus Amplifier Manual 2002938-002E

Introduction

WARNING

ELECTRICAL SHOCK — DO NOT allow hydraulic fluid
from any device to contact any conductive surface.
Hydraulic fluid is electrically conductive.

An electrical shock hazard exists between chassis ground
and isolated (floating) ground when power is applied.
Unplug the unit from the power source before proceeding.

To reduce the risk of electric shock or damage to your
equipment, do not disable the power cord grounding
feature. This equipment is designed for con ne cti on to a
earth grounded power outlet. The grounding plug is an
important safety feature.

WARNING

ELECTRICAL SHOCK — To reduce the risk of electric
shock, DO NOT remove cover or back. This equipment
contains no user serviceable parts. Refer servicing to
qualified service personnel.

WARNING

BACK-UP MONITORING — Back-up patient monitors
should always be available when using the equipment.

WARNING

CONDUCTION HAZARD — Keep the conductive parts
of lead electrodes and associated parts away from other
conducting parts, including earth.

2002938-002E Cardiolab® II Plus Amplifier Manual 1-11

Introduction

WARNING

CONDUCTIVE CONNECTIONS — Proper connections
to the patient are critical for the proper operation of the
CardioLab II Plus Amplifier and patient safety. Use
extreme caution when making patient connections.

Do NOT connect non-isolated equipment to the amplifier.
Proper connections to the stimulator are critical for the

proper operation of the CardioLab II Plus Amplifier and
patient safety. Use extreme caution when making
stimulator connections. The stimulator must be a IEC
601-1 certified product

Ablation operations should NOT be executed when a
stimulator unit is connected.

WARNING

DEFIBRILLATOR PRECAUTIONS — DO NOT contact
the system or patient during defibrillation.

Standby defibrillation equipment is required in the event
that the patient needs to be cardioverted or defibrillated.

WARNING

PATIENT/EQUIPMENT SAFETY — The system should
be tested yearly for adequate grounding on patient
leakage current.

Total system earth leakage current must not exceed 50
microamperes.

When more than two electrical devices are interconnected,
the summation of leakage currents must be checked
before use and rechecked yearly.

WARNING

IEC — All equipment not complying with IEC 601-1
should be placed outside the patient environment.

1-12 Cardiolab® II Plus Amplifier Manual 2002938-002E

Introduction

WARNING

MAINTENANCE — Use only Catheter Input Module
(CIM) #301-00202-08 or #30100203-08 with the
CardioLab II Plus Amplifier.

Check the electrical integrity of the signal connections in
the catheter input modules and cabling yearly.

WARNING

POWER SUPPLY — Connect the system to a power
outlet equipped with emergency power.

The supply line must be fused and capable of delivering
20A.

Route the AC power cable away from moving parts.
Connect only to a properly earth grounded outlet.

WARNING

REPLACEMENT PARTS — Replace only with the same
type and rating of fuse.

WARNING

INDICATIONS OF USE — This device is intended for
use under the direct supervision of a licensed health care
practitioner.

CAUTION

RESTRICTED SALE — Federal USA law restricts this
device to sale by or on the order of a physician.

CAUTION

DATA ACCURACY — DO NOT display any channels
which are based on unused catheter input modules.

Erroneous values may occur if unused catheter inputs are
not properly connected.

2002938-002E Cardiolab® II Plus Amplifier Manual 1-13

Introduction

CAUTION

CABLING — Route optical cables through conduit in th e
ceiling or floor to avoid damage to the cables of cable
connectors.

CAUTION

TRANSDUCER — Remove air that is trapped in the
transducer or associated tubing by flushing the system
according to cath lab procedures.

Pressure channels should be calibrated to a known
pressure value if the pressure value is in question.

CAUTION

DEFIBRILLATOR PRECAUTIONS — ECG inputs are
protected against the use of a defibrillator in conjunction
with the use of the ECG cable.

Service Information

Service Requirements

Follow the service requirements listed below:

 Refer equipment servicing to GE Medical Systems - Information

 Any unauthorized attempt to repair equipment under warranty voids

The pressure inputs on the CardioLab II Plus Amplifier
are protected against the use of a defibrillator in
conjunction with the use of the recommended pressure
trandsucer and reusable cable.

CAUTION

POWER SUPPLY — The CardioLab II Plus Amplifier
may be safely powered by line voltages of 100-240 VAC
with frequencies of 50-60 Hz.

Technologies authorized service personnel only.

that warranty.

1-14 Cardiolab® II Plus Amplifier Manual 2002938-002E

 It is the user’s responsibility to report the need for service to GE

 Failure on the part of the responsible individual, hospital, or

 Regular maintenance, irrespective of usage, is essential to ensure

Equipment Identification

Every GE Medical Systems - Information Technologies device has a
unique serial number for identification. The serial number appears on
the back of the CardioLab II Plus Amplifier.

New Identification Tags

Introduction

Medical Systems - Information Technologies or to one of their
authorized agents.

institution using this equipment to implement a satisfactory
maintenance schedule may cause undue equipment failure and
possible health hazards.

that the CardioLab II Plus Amplifier will always be functional when
required

A
B

XXXXXXXXX

C

XXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXX

XX

XXXXXXXXXXXXX

AA5 XX XX XXXX X X

D

E

F

XXXXXXXXXXX

H

G

I

Identification Tags

Item Name

A Name of Device
B Manufacturer

2002938-002E Cardiolab® II Plus Amplifier Manual 1-15

Introduction

Old Identification Tags

Identification Tags

Item Name

C Serial Number
D 3 digit product code
E Year Manufactured
F Fiscal Week
G Product Sequence Number
H Manufacturing Site

I Misc.

A
B

MILWAUKEE

C

G

[NAME OF DEVICE]

GE MEDICAL SYSTEMS

WI

A2PX1808F

A 2 PX 1808 XX

H

F

MADE IN USA

Identification Tag

Item Name Description

A Name of Device CLABII Plus Amplifier
B Manufacturer GE Medical Systems Information Technologies
C Serial Number Unique Identifier

D
E

1-16 Cardiolab® II Plus Amplifier Manual 2002938-002E

Identification Tag

Item Name Description

D Facility Code F or G = Milwaukee, P = Bangalore, S = Border Ops (Juarez/El Paso)

Introduction

E Product Sequence

Manufacturing number of total units manufactured

Number
F Product Code Two character product descriptor; XJ= CLAB II Plus Amplifier
G Year Manufactured 9 = 1999, 0 = 2000 (and so on)
H Month Manufactured A = January, B = February, C = March, D = April, E = May, F = June,

G = July, H = August, J = September, K = October, L = November,
M = December

2002938-002E Cardiolab® II Plus Amplifier Manual 1-17

Introduction

1-18 Cardiolab® II Plus Amplifier Manual 2002938-002E

2 Equipment Overview

2002938-002E Cardiolab® II Plus Amplifier Manual 2-1

Equipment Overview

General Description

The CardioLab II Plus Amplifier is designed to amplify various types of
cardiac signals that are acquired from a patient and transmit them back
to the CardioLab/Mac-Lab system, referred to in this manual as the
acquisition computer. These signals include 12 Lead ECG, intra-cardiac
and pressure signals.

The CardioLab II Plus Amplifier is fully supported by CardioLab EP
software versions 3.1 and above and CardioLab Cath software versions

1.0 and above. However, the CardioLab II Plus Amplifier was designed
specifically for use with the CardioLab/Mac-Lab system. The following
table lists the functionality of the CardioLab II Plus Amplifier with the
different software versions.

Table 1. CardioLab II Plus Functionality for Different Versions of CardioLab Software

CardioLab II Plus Functionality CardioLab EP 3.1 and Above/CardioLab

CardioLab/Mac-Lab System

Cath 1.0 and Above

Intracardiac Blocks A and B Only All Blocks Available
Stimulator CardioLab II Amplifier Equivalent Enhanced Switching Options
Auxiliary Input Not Available RF Filtered and Unipolar Inputs

The CardioLab II Plus Amplifier supports 32, 64, 96 and 128 channel
configurations.

The following list illustrates the number of Catheter Input Modules
(CIM) used with the four configurations of the CardioLab II Plus
Amplifier:

 32 Channels: 1 CIM
 64 Channels: 3 CIMs
 96 Channels: 5 CIMs
 128 Channels: 7 CIMs

The Catheter Input Modules for the four configurations of the CardioLab
II Plus Amplifier connect to the following catheter inputs on the front of
the amplifier:

 32 Channels: Input A
 64 Channels: Inputs A-C
 96 Channels: Inputs A-E
 128 Channels: Inputs A-G

2-2 Cardiolab® II Plus Amplifier Manu al 2002938-002E

CardioLab II Plus Amplifier Hardware

Amplifier Part Numbers

The part numbers for the CardioLab II Plus Amplifier are as follows:

 32 Channel: 2003232-001
 64 Channel: 2003232-002
 96 Channel: 2003232-003
 128 Channel: 2003232-004

If international users need to order a power cord, the following part
numbers can be ordered separately.

The following table lists the options for each configuration of the
Acquisition system:

Table 2. International Power Cord Part Numbers

Part Number Description

Equipment Overview

422845-001 Power cord for Continental Europe 10 Amp.
422845-002 Power cord for Britain 10 Amp.
422845-003 Power cord for Italy 10 Amp.
422845-004 Power cord for Swiss 10 Amp.
422845-005 Power cord for India 10 Amp.
422845-006 Power cord for Australia 10 Amp.

2002938-002E Cardiolab® II Plus Amplifier Manual 2-3

Equipment Overview

Accessory Parts List

GE Medical Systems - Information Technologies recommends the
following accessory parts be used with the CardioLab II Plus Amplifier:

Table 2. Accessory Parts List

Accessory Name Part Number

Abbott Transpac IV Disposable Transducer
with 4 ft. extension Cable*

Abbott Transpac Reusable Cable* Abbott #42661-04-42
3M Disposable Electrode for ECG

Monitoring*
* This accessory is not stocked by GE Medical Systems Information Technologies.

Required Tools and Supplies

The following is a list of tools needed to service the CardioLab II Plus
amplifier:

 Adjustable wrench with a capacity of 1/2 inch
 Phillips screwdriver
 Physiologic signal simulator with ECG and pressure outputs
 2 mm pin-jack to ECG jumper wires
 Bourn’s potentiometer tool
 Adapter cable to interface pressure simulator to amplifier inputs
 Torx T10 driver

Abbott #42582-08

3M Red Dot #2256

2-4 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Front View

Equipment Overview

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Table 4. Front View 64/32 Channels- CardioLab II Plus Amplifier

Name Description
Pressure Inputs Four pressure inputs will each accept a pressure transducer

that is calibrated to 5uV/V/mmHg. See the Accessory Parts
List for GE Medical Systems - Information Technologies
recommended pressure transducers.

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ECG Input The ECG input connector will accept a 10 lead ECG input

cable.

Stimulator Input The stimulator input will accept a stimulator input cable. Use

the 3 ft., 15 ft. or 30 ft. Touchproof Stimulator Cables (part
numbers , 301-00204-03, 301-00204-15, 301-00204-30,
respectively) with the CardioLab II Plus Amplifier.

Catheter Inputs Up to three catheter inputs will each accept a 32 pole catheter

input module. Use the CardioLab II Plus Catheter Input
Modules (part number 301-00202-08) with the CardioLab II
Plus Amplifier.

2002938-002E Cardiolab® II Plus Amplifier Manual 2-5

Equipment Overview

Table 4. Front View 64/32 Channels- CardioLab II Plus Amplifier

Auxiliary Inputs The auxiliary input will accept the Auxiliary Input Cable (part

number 301-00205-08).

Power Indicator The power indicator is on as long as the CardioLab II Plus

Amplifier is turned on.

Communication
Indicators

Three communication indicators show the status of the
communication between the acquisition computer and the
CardioLab II Plus Amplifier.

 When the XMT indicator is on, the CardioLab II Plus

Amplifier is transmitting data to the acquisition computer.
The XMT indicator should remain on as long as the
power indicator is on.

 When the RCV CMD indicator is on, the CardioLab II

Plus Amplifier is receiving data from the acquisition
computer. The RCV CMD indicator will turn on as long as
an instruction is being received by the amplifier.

 When the RCV ERR indictor is on, the CardioLab II Plus

Amplifier may not be receiving data from the acquisition
computer in a valid format or there may be a problem with
the fiber optic cable.

2-6 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Equipment Overview

Table 5. Front View 128/96 Channels- CardioLab II Plus Amplifier

Name Description
Pressure Inputs Four pressure inputs will each accept a pressure transducer

that is calibrated to 5uV/V/mmHg. See the Accessory Parts
List for GE Medical Systems - Information Technologies
recommended pressure transducers.

ECG Input The ECG input connector will accept a 10 lead ECG input

cable.

Stimulator Input The stimulator input will accept a stimulator input cable. Use

the 3 ft., 15 ft. or 30 ft. Touchproof Stimulator Cables (part
numbers , 301-00204-03, 301-00204-15, 301-00204-30,
respectively) with the CardioLab II Plus Amplifier.

Catheter Inputs Up to seven catheter inputs will each accept a 32 pole catheter

input module. Use the CardioLab II Plus Catheter Input
Modules (part number 301-00202-08) with the CardioLab II
Plus Amplifier.

Auxiliary Inputs The auxiliary input will accept the Auxiliary Input Cable (part

number 301-00205-08).

2002938-002E Cardiolab® II Plus Amplifier Manual 2-7

Equipment Overview

Table 5. Front View 128/96 Channels- CardioLab II Plus Amplifier

Power Indicator The power indicator is on as long as the CardioLab II Plus

Amplifier is turned on.

Back View

Communication
Indicators

Three communication indicators show the status of the
communication between the acquisition computer and the
CardioLab II Plus Amplifier.

 When the XMT indicator is on, the CardioLab II Plus

Amplifier is transmitting data to the acquisition computer.
The XMT indicator should remain on as long as the
power indicator is on.

 When the RCV CMD indicator is on, the CardioLab II

Plus Amplifier is receiving data from the acquisition
computer. The RCV CMD indicator will turn on as long as
an instruction is being received by the amplifier.

 When the RCV ERR indictor is on, the CardioLab II Plus

Amplifier may not be receiving data from the acquisition
computer in a valid format or there may be a problem with
the fiber optic cable.

2-8 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Table 6. Back View - CardioLab II Plus Amplifier

Name Description

Equipment Overview

FDDI Connection to
Computer

Power Input The GE-supplied power cord connects to the Power Input.
Equipotentiality

Terminal

Internal Assembly

Board Identifications

Control Board (PN: 2002344-001)

 Provides communications between the amplifier and the CPU.
 Transmits all real-time data.
 Receives all amplifier setup information from the CPU and sends

commands to other boards

This connector will accept a FDDI type fiber optic cable. The
fiber optic cable allows for two-way communication between
the amplifier and the CardioLab system.

The Equipotentiality Terminal is connected to earth ground.

2002938-002E Cardiolab® II Plus Amplifier Manual 2-9

Equipment Overview

2-10 Cardiolab® II Plus Amplifier Manual 2002938-002E

Equipment Overview

2002938-002E Cardiolab® II Plus Amplifier Manual 2-11

Equipment Overview

ECG/Pressure/Calibration Board (P/N 2002834-004)

 Processes ECG leads and calculates augmented leads using the

Wilson Central Terminal.

 Contains high and low pass filters, gains, and notch filters.
 Contains four-strain, gauge pressure transducers.
 Protects defibrillation.

2-12 Cardiolab® II Plus Amplifier Manual 2002938-002E

Cross-Point Amplifier Board (XPA)(PN: 2002506-004)

 Contains high and low pass filters, gains, and notch filters.
 Performs A/D conversion and sends information to the control board.
 Contains 32 inputs/16 channels per board.
 Identifies switches used to assign addresses when swapping boards.
 Relays route stim inputs to correct catheter inputs.

Equipment Overview

2002938-002E Cardiolab® II Plus Amplifier Manual 2-13

Equipment Overview

Front Panel Board

The part numbers for the front panel boards are as follows:
32 Channel: PN: 2002754-004
64 Channel: PN: 2002754-003
96 Channel: PN: 2002758-004
128 Channel: PN: 2002758-003

 Allows RF filtering.
 Protects defibrillation for ECG inputs.
 Allows stim inputs to pass through.
 Allows signals to pass throug h catheter inputs.
 Contains ribbon cables that connect to the back plane board.
 Provides four LEDs:

1. XMT DATA (Transmit Data) - Always green indicating real time
data being sent to CPU.

2. RCV CMD (Receive Command) - Only flashes when the amplifier
receives commands from the CPU.

3. RCV Error (Receive Error) - Lights when the amplifier recess
incomprehensible command from the CPU.

4. Power Indicator - Lights as long as the amplifier is turned on.

2-14 Cardiolab® II Plus Amplifier Manual 2002938-002E

Back Plane Board

The part numbers for the back plane boards are as follows:
64/32 Channel: PN: 2002604-001
128/96 Channel: PN: 2002705-001
Provides the interface for the ECG/Pressure/Calibration Board, XPA

boards, and the control board.

Equipment Overview

2002938-002E Cardiolab® II Plus Amplifier Manual 2-15

Equipment Overview

Power Board (PN: 2002648-001)

 Converts +15 V to +/- 15 V and +/- 5 V.
 Supplies power to the power subassembly fan.
 Sends a TTL signal equivalent (50 or 60Hz)

2-16 Cardiolab® II Plus Amplifier Manual 2002938-002E

Components

Equipment Overview

The CardioLab II Plus Amplifier comes with the following components:

Table 7. CardioLab II Plus Amplifier Components

Component Name Part Number

CardioLab II Plus Catheter Input Module 301-00202-08
3 ft. Touchproof Stimulator Input Cable 301-00204-03
15 ft. Touchproof Stimulator Input Cable 301-00204-15
30 ft. Touchproof Stimulator Input Cable 301-00204-30
Auxiliary Input Cable 301-00205-08
ECG 10 Lead Set 2003421-001
10 Lead ECG Cable 2003419-001
Power Cord 80274-006

405535-013 (Japan)

75ft. ST to FDDI Fiber Optic cable 2003434-001

2002938-002E Cardiolab® II Plus Amplifier Manual 2-17

Equipment Overview

CardioLab II Plus Catheter Input Module

The equivalent to the Stimulus Inputs 1-4 on the Stimulator Input Cable
are labelled on the CardioLab II Amplifier as Stimulus Inputs A1, A2, B1
and B2.

The four stimulus inputs on the Stimulator Input Cable (see photo
below) connect to the stimulator.

Each Catheter Input Module is broken down into two groups of 16 poles
each. For example, Block A is broken into A (1-16) and A (17-32).

Each pacing channel, requires one positive and one negative pole. In
order to maximize the number of pacing channels, only one positive and
one negative designation should be made for each group.

For detailed instructions on how to designate pacing channels and enable
pacing for particular sites, refer to the on-line help in the software
application.

2-18 Cardiolab® II Plus Amplifier Manual 2002938-002E

Stimulator Input Cable

ECG 10 Lead Set

Equipment Overview

2002938-002E Cardiolab® II Plus Amplifier Manual 2-19

Equipment Overview

10 Lead ECG Cable

Power Cord

2-20 Cardiolab® II Plus Amplifier Manual 2002938-002E

3 Operation

2002938-002E Cardiolab® II Plus Amplifier Manual 3-1

Operation

Getting Started

WARNING

ELECTRIC SHOCK HAZARD — Do not allow any
foreign materials such as fluids to come in contact with
the CardioLab II Plus Amplifier.

If fluid of any kind should leak into the Card ioLab II Plus
Amplifier, discontinue using the amplifier and contact GE
Medical Systems - Information Technologies.

DO NOT allow hydraulic fluid from any device to contact
any conductive surface. Hydraulic fluid is electrically
conductive.

NOTE

Connect the CardioLab II Plus Amplifier and all accompanying
components in a clean and dry environment with a temperature
between 0°C and +35°C and a humidity less than 95% relative at
35°C non-condensing.

3-2 Cardiolab® II Plus Amplifier Manu al 2002938-002E

Connecting Cables to the Amplifier

When making connections to the CardioLab II Plus Amplifier, make sure
that the cables are connected securely in the appropriate locations. Refer
to Chapter 2 Equipment Overview for a description of all equi pment and
components.

To connect the pressure, ECG, and catheter cables to the amplifier, line
the pins with the appropriate connection and firmly push th e head of the
cable into place. Turn the connector ring to the right (clockwise) to secure
the cable into the connection.

To connect the stimulator and auxiliary inputs cables to the amplifier,
line the pins with the appropriate connection, hold the head of the cable
by the shell and firmly push the cable into place.

To connect the power cord to the back of the amplifier, line the pins with
the connection and firmly push the head of the cord into place.

To connect the fiber optic cable to the back of the amplifier, remove the
protective cap, hold the cable by the head and firmly push it into place.
The cable will only connect in one orientation. DO NOT force the fiber
optic cable into the connection. If the cable does not connect with ease,
flip the cable and try to connect it again.

Operation

Disconnecting Cables From the Amplifier

To disconnect the pressure, ECG, and catheter cables from the amplifier,
turn the connector ring to the left (counter-clockwise) and firmly pull the
cable straight back.

To disconnect the stimulator and auxiliary inputs cables from the
amplifier, hold the head of the cable by t he shell and firml y pull the cable
straight back. The stimulator and auxiliary input cables will not
disconnect from the amplifier when pulled by the cord.

To disconnect the power cord from the back of the amplifier, hold the cord
by the head and firmly pull the cord straight back.

To disconnect the fiber optic cable from the back of the amplifier, hold
the head of the cable while pinching the sides. Firmly pull the cable
straight back and attach the protective cap.

2002938-002E Cardiolab® II Plus Amplifier Manual 3-3

Operation

Installation Checkout

Once the appropriate cable connections have been made to the
CardioLab II Plus Amplifier, the communication indicators on the front
of the amplifier should turn on. If the indicators do not turn on, check the
fiber optic cable for cracks and wear.

If the XMT indicator is on, the CardioLab II Plus Amplifier is
transmitting data to the acquisition computer. The XMT indicator will
turn on regardless if the transmission of data is successful or not. The
RCV ERR indicator will turn on if the amplifier is having difficulty
transmitting data to the computer.

The RCV CMD indicator will turn on when the acquisition computer is
sending data to the CardioLab II Plus Amplifier. If the RCV ERR
indicator is on, the acquisition computer may be having difficulty
transmitting data to the computer.

The RCV ERR indicator may also turn on if the fiber optic cable has been
connected to the amplifier incorrectly.

Refer to the manuals listed in the table in the Related Manuals section in
Chapter 1 for information on configuring and diagnosing the CardioLab
II Plus Amplifier using the acquisition computer.

3-4 Cardiolab® II Plus Amplifier Manu al 2002938-002E

A Appendix A –

Maintenance and
Troubleshooting

2002938-002E Cardiolab® II Plus Amplifier Manual A-1

Appendix A – Maintenance and Troubleshooting

Overview

Maintenance/Repair Log

A “Maintenance/RepairLog” is included in this appendix to aid in
keeping a record of the work done on the amplifier.

NOTE

Unless you have an Equipment Maintenance Contract, GE Medical
Systems - Information Technologies does not in any manner assume
the responsibility for performing the recommended maintenance
procedures. The sole responsibili ty rests with the individual or
institution using the equipment. GE Medical Systems - Information
Technologies, Inc. service personnel may, at their discretion, follow
the procedures provided in this manual as a guide during visits to
the equipment site.

Environmental Protection

Even though the amplifier will be operated in many different
environments, some precautions must be observed.

 Take care to avoid extremes of temperature, moisture, and humidity.

The amplifier is not waterproof.

 Protect the amplifier from spills or other debris. Eating, drinking,

and smoking should not be permitted near the amplifier during
patient hookup or amplifier maintenance.

Inspection and Cleaning

Since the CardioLab II Plus Amplifier has no moving parts except for the
fan, it requires little maintenance. However, to prolong the use of the
amplifier, GE Medical Systems - Information Technologies recommends
the following maintenance schedule be performed on the amplifier to
maintain safe and efficient operation of the unit:

A-2 Cardiolab® II Plus Amplifier Manual 2002938-002E

Appendix A – Maintenance and Troubleshooting

Table 1. Preventative Maintenance Schedule - CardioLab II Plus Amplifier

Maintenance Time Maintenance Actions

Daily

Weekly

Monthly

Yearly

 Check the case for cracks or other damage
 Inspect all cords and cables for fraying or other damage.
 Inspect all plugs, cables, and connectors for bent prongs

or pins.

 Verify that all cords and connectors are securely seated.
 Inspect controls for proper operation.

 Clean the external cables (such as ECG, blood pressure

and catheter inputs) and the Catheter Input Module with
isopropyl alcohol by wiping the surface with a soft, clean
cloth. DO NOT immerse and external cables or the
Catheter Input Module in isopropyl alcohol or in fluids of
any kind.

 Inspect all tips of the fiber optic cables and, if necessary,

clean them with alcohol and a cotton swab

 Clean all dust and debris from the fiber optic cable

connectors.

 Check the summation of the leakage current. The total

system earth leakage current must not exceed 50
microamperes

 With the power supply disconnected from the line voltage,

check the earth ground connection by verifying that the
resistance between the earth terminal of the AC inlet on
the amplifier and any exposed metal surface of the
enclosure is less than 0.1 ohms.

 Check the electrical integrity of the signal connections in

the catheter input modules.

NOTE

Yearly maintenance activities on the CardioLab II Plus
Amplifier should only be done by qualified technical
personnel.

Precautions

Do not open the CardioLab II Plus Amplifier unless instructed to do so by
a qualified technical personnel.

Do not immerse any part of the amplifier in water.

2002938-002E Cardiolab® II Plus Amplifier Manual A-3

Appendix A – Maintenance and Troubleshooting

Do not use organic solvents, ammonia based solutions, or abrasive
cleaning agents which may damage equipment surfaces.

Cleaning

Clean the exterior surfaces with a clean, soft cloth and a mild
dishwashing detergent diluted in water.

 Wring the excess water from the cloth. Avoid contact with open

vents, plugs, or connectors.

 Do not spray or spill fluid directly on the amplifier.
 Dry the surfaces with a clean cloth or paper towel.

Amplifier Troubleshooting

See the How to Reach Us section in the front of this manual for
information on contacting GE Medical Systems - Information
Technologies for customer service, product support, supplies, and service
parts.

If the amplifier does not send signals to the CardioLab system or you
receive an unable to communicate with amplifier message:

 Ensure that the amplifier is plugged in and turned on.
 Verify that the external cables are connected properly and are

securely attached.

 Replace the fiber optic cable (FOC).
 Clean the FOC with isopropyl (rubbing) alcohol and blow out the

connectors with compressed air.

 Disconnect the FOC from back of the computer and make sure that

there is a light coming from the end of the cable that was plugged
into CPU IN.

 With the amplifier and computer turned on, the green LED next to

the CPU IN port on the computer will turn green when connected
properly.

 If the problem is intermittent, this problem may indicate a dirty or

broken FOC or connector.

 If the problem persists, ensure that all connections inside the

amplifier are secure and the boards are seated securely in th eir slots.

Random spikes or square waveforms appear in signals when not
stimulating the patient:

A-4 Cardiolab® II Plus Amplifier Manual 2002938-002E

 Clean the FOC contacts with a non-abrasive, lint-free cloth and

isopropyl alcohol.

 Replace the fiber optic cable.
 If the waveforms only exist on one channel, try replacing either the

catheter, catheter extender, or catheter junction box. You may also
try another Catheter Input Module.

Noise on Intracardiac Signals

The noise should resemble 60 Hz or some other relatively consistent
interference which are not associated with stim artifact.

 Go to the amplifier test selection under Administration and perform

a hardware reset on the amplifier (this is equivalent to turning the
amplifier off and on, which would be the second option).

 Verify that the catheter is correctly plugged into the Catheter Input

Module (CIM) and that these poles have been correctly entered into
the study configuration.

 Remove/replace the catheter extender cables, especially if they have

been re-sterilized.

Appendix A – Maintenance and Troubleshooting

For real-time testing during a case:

Make duplicate channels

 If the noisy signal is set to poles x and y, set up another channel (one

with a high quality intracardiac signal, (for example, HRA or RVA)
with the same poles and see if the noise is present there as well. This
tests the channel.

 While keeping the channels consistent, try inputting the catheters to

different poles on the CIM and see if the noise follows the signal. This
tests the CIM poles.

NOTE

If the last two tests make no difference, the problem may exist with
the catheter itself. Try replacing the catheter.

Detailed Testing: Amplifier Channel Test

 Input a simulated signal into poles 1 and 2 of the CIM block A and

connect the ground of the simulator to the RL limb lead

 In the study configuration set all intracardiac channels to:

 Poles 1 and 2

2002938-002E Cardiolab® II Plus Amplifier Manual A-5

Appendix A – Maintenance and Troubleshooting

 All of the signals should be identical. If one channel does not produce

Catheter Input Module Test

In the study configuration:

 All channels should be set to Bicath type with equal filter settings.
 Give each channel 2 poles in ascending order: Ch.1 (poles 1 and 2),

 Plug a simulated signal from channel to channel, from one pair of

 All of the signals should look the same, if one does not produce an

 Ensure that you are not placing the CIM in sterile bags and then

 Catheters with long pins (1/2 inch) normally produce less noise than

 Send a fax of any noise issues to customer support. Use calipers to

 Bicath type setting
 No notch filter and identical high and low pass settings.
 Make sure each signals is displayed on an active page.

an identical signal, the channel may be bad.

Ch. 2 (poles 3 and 4), Ch. 3 (poles 5 and 6), etc. Continue to do this
through all poles for all blocks.

poles to the next pair of poles. Connect the simulator ground to the
RL limb lead.

identical signal, the pole in the catheter input module may be bad.

pushing the catheter pins through the plastic and into the CIM. This
plastic can become lodged in the CIM and create problems.

catheters with short pins. This is due to the long pins’ deep
penetration into the CIM.

demonstrate the cycle length of the noise. 60 Hz noise has a cycle
length of 16.7 ms.

Noise on ECG Signals

 When inspecting a full 12 lead, is there one signal which is

particularly clean?

 If Lead I is clean and all other signals are noisy, apply an new

left leg patch.

 If Lead II is clean and all other signals are noisy, apply a new l eft

arm patch.

 If Lean III is clean and all other signals are nois y, ap pl y a ne w

right arm patch.

 If all signals are nois y, ap ply a ne w rig ht leg patch.

 Buff and clean the patient’s skin before applying the new patch.

A-6 Cardiolab® II Plus Amplifier Manual 2002938-002E

Appendix A – Maintenance and Troubleshooting

 If changing the patch does not help, swap the suspected limb lead

with any of the other lead wires. For example, if Lead I is clean, and
all other signals are noisy, swap the LL with a V wire.

 Ensure that all patches on the patient are of the same type. Do not

use different types of patches because this will cause the Common
Mode Rejection Ratio (CMRR) to decrease, producing more noise.

 In some cases, an abnormally high soft scale value in the study

configuration can lead to noise. You can reduce this setting by one
level and adjust your signal gains accordingly. For example, if you
move from 1/4 to 1/8, you will have to increase the gain of your
signals by 2 (for example, from 500 to 1000). Values of 1/8 or less are
recommended.

 Select hardware reset from the amplifier test window.
 Ensure that neither the amplifier nor the computer/IEB is plugged

into an emergency AC power outlet. While these may have good
power, they may introduce noise into CardioLab due to the many
extraneous circuits tied to them. Also, make sure the amplifier is not
plugged into a power strip. The amplified should always be plugged
into its own dedicated outlet.

 Install a harmonic filter isolation transformer between the power

source and the amplifier to further reduce noise.

 It may be necessary to replace the ECG cable (the cable from the

front oh the amplifier to the limb leads).

 Ensure that all AC outlets which CardioLab interfaces with are

properly grounded. To ensure this, a rece ptacle te ster should b e used
to look for these wiring faults.

 When testing for these problems, remember that auxiliary

equipment such as RF pads and pulse oximeters may be adding noise
to the patient. Therefore, remove all auxiliary equipment and add
each piece individually while looking for signs of noise. Also, make
certain that any auxiliary piece of equipment connected to the
patient is not plugged into a power strip.

 When using a simulator to test ECG channels, ensure that the Right

Leg lead is always attached to the simulator. This is used as a
reference channel by the amplifier.

Signals Offset from the Channel Labels

 Go into the amplifier test option under the Administration menu and

select Reset Hardware.

 If this does not fix the problem, click on the Zero tab in the amplifier

test window and zero the signals with the offset.

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Appendix A – Maintenance and Troubleshooting

 Ensure that the soft scale is no greater than 1/4. Also, abnormally

 Check the filter settings for the signal.
 Continued problems with signal offset may mean that the amplifier

ECGs are Flat

 When inspecting a full 12 lead, is there any one signal which is

 If changing the patch doesn’t help, swap the suspected limb lead wire

 In many cases, an abnormally low soft scale value can lead to

 Select Reset Hardware from the amplifier test window under the

 It may be necessary to replace the ECG cable (the cable between the

 If using a simulator to test the ECG signals, always make sure the

high gain settings for ECGs may contribute to an offset problem.

needs calibration. Calibration must be performed by a trained GE
Service personnel.

flatline?

 If Lead I is flat and all other signals are good, apply a new left leg

patch.

 If Lead II is flat and all other signals are good, apply a new left

arm patch.

 If Lead III is flat and all other signals are good, apply a new right

arm patch.

with any of the other lead wired.

flatlines. Values of 1/8 and 1/4 are recommended.

Administration menu.

amplifier and the limb leads).

right leg lead is attached to the ground of the simulator.

Stimulus Artifact on Intracardiac Channels

NOTE

If this is the first case in which you have seen this problem, the
problem is most likely with a "case variable". A case variable is
something which has changed since the last case was performed.
Catheters and catheter extenders are good examples of case
variables. If the amplifier has worked properly in the past, it is
doubtful that is has suddenly developed a stim artifact problem. New
or re-sterilized catheters may have a short or bad connection.

 Does the artifact occur when pacing from one catheter but not from

others?

 If yes, connect a catheter that is not producing stim artifact to

the same inputs on the catheter input module (CIM) where the

A-8 Cardiolab® II Plus Amplifier Manual 2002938-002E

Appendix A – Maintenance and Troubleshooting

catheter with the stim artifact is connected. Pace through the
new catheter.

 If no artifact is present, the problem is with the original catheter.

 If artifact is still present, move the catheter to poles on the CIM

which are seldom used. If there is no stim artifact here, the problem
may be with the original poles on the CIM. They may have loosened
over time. The pacing poles at the bottom of the CIM may also be
used for this purpose.

 Replace the stim cable from the stimulator to the amp. If artifact is

no longer present, the cable was bad.

 Move the stim cable input for the stim channel with the artifact

problem to another channel on the stimulator. If the artifact is no
longer present, the stimulator channel may be bad.

 Try using another stimulator. A hand held temporary pacemaker or

another battery operated stimulator will work.

 Connect the catheter directly to the stimulator. If the artifact is no

longer present, the problem may be with the amplifier or one of the
cables connected to the amplifier.

 For continued problems with stim artifact, please fax a snapshot of

the signals to customer support for evaluation.

Stimulus Artifact on ECG Signals

 Does the artifact appear on all of the surface leads?

 If Lead I is clean and all other ECGs have artifact, replace the

 If Lead II is clean and all other ECGs have artifact, replace the

 If Lead III is clean and all other ECGs have artifact, replace the

 If all ECGs have artifact, replace the right leg patch.
 Buff and clean the patient’s skin before applying new patches.
 If the artifact occurs at random times on random signals, this is

further evidence that a faulty patch or lead may be causing the

artifact. If changing the patch above does not help, try swapping the

associated lead wire with one that is known to be producing a good

signal.

 Reduce the gain on the affected signals.
 Select the Reset Hardware button in the amplifier test window under

the Administration menu.

left leg patch.

left arm patch.

right arm patch.

2002938-002E Cardiolab® II Plus Amplifier Manual A-9

Appendix A – Maintenance and Troubleshooting

 Ensure that you are not placing the CIM in sterile bags and pushing

 Catheters with long pins (1/2 inch) normally produce less artifact

 Replace the stim cable.

Cannot Stimulate the Patient

 Ensure that the stimulator input cable is connected to the front of

 Ensure that the appropriate stim enable button at the top of the

 Check the study configuration to ensure that the stimulus is set to go

 Check to make sure the stimulator is working properly. Bypass the

 If you are still unable to pace, connect the distal poles of the catheter

the catheters through the bag into the poles. This plastic can become

lodged in the junction box and create problems.

than catheters with short pins. This is due to the long pins’ deep

penetration into the CIM.

the amplifier and the opposite end is connected to the appropriate

poles on the stimulator.

Real-Time window in the CardioLab applicat io n is tu rn ed on (red ).

to the correct catheter.

amplifier by connecting the distal poles of the catheter to the

stimulus poles at the bottom of the catheter input module. These

poles are directly wired from the front of the amplifier.

directly to the stimulator, bypassing the amp. If you still cannot pace,

the problem is not with the CardioLab equipment and most likely

lies with the stimulator or catheter. Check the output of the

stimulator with a multi-meter or oscilloscope.

General Hints to Reduce Noise in a Typical EP Lab

 Good grounding is key. All equipment which is connected to the

patient should be connected to the same electrical circuit (not the

same outlet), if possible. By connecting all of the equipment to the

same circuit, it is possible to prevent "grounding loops" from

occurring which can cause noise.

 Any light fixtures or other antenna-like devices above or around the

bed can be connected to the same circuit mentioned above.

 If possible, labs should not be positioned next to elevator generators,

or any other power generators. Other major pieces of noise emitting

equipment include MRI systems, etc.

 For ultimate noise protection, the lab can be enclosed in a "Faraday

Cage". This involves enclosing the lab in a metal box which is then

grounded. While this is expensive, it is quite effective.

A-10 Cardiolab® II Plus Amplifier Manual 2002938-002E

CardioLab Amplifier Testing

NOTE

When testing the amplifier, always make sure the RL ECG lead wire

is connected to the ground of the simulator or function generator. All

signals in the amplifier use this lead as a reference.

 Make sure the patient catalog is set to System.
 Click on the CardioLab tab in the Navigator window and create a

patient.

 Use the appropriate study types for the type of amplifier the lab will

be using.

 Create a new patient using the Amp Test study type for the correct

amplifier.

 With the Real-Time display on page 1, connect the ECG cable from

the amp to your simulator. Verify signals.

 Switch to page 2 of the Real-Time display and connect the pressure

output from your simulator to the pressure 1 input of the amp. Run

zero pressure data and zero the signal on the window by highlighting

it and pressing the zero key on the keyboard.

 Run pressure data on the channel and verify the pressure signal.
 Repeat the same procedure for all pressure waveforms.
 Change the Real-Time display to page 3 and connect your simulator

to pins 1 and 2 of catheter block A.

 Run signal data into pins 1 and 2, verify that all of the signals on the

page look identical.

 Run through this same procedure for each of the successive pages.

Each page represents a different block.

 Go to the Study Configuration menu and select Switch.
 Choose the CIM/STIM study type for the appropriate amplifier.
 Set the display to page 1 and connect the simulator to pins 1 and 2 of

catheter input module block A.

 Run simulated data using pins 1 and 2. Then move the simulator

down the block. (i.e. pins 2 and 3, 4 and 5, etc.). Make sure the

signals look the same as you run down the block.

 Repeat this procedure for each input module. Each page of signals is

set up to test one whole block.

 To perform the stim test, go to the Real-Time channel configuratio n

and under the amplifier select STIM.

 Go to the Display and Hardware Settings tab and turn auto-detect on

for all four stim channels.

Appendix A – Maintenance and Troubleshooting

2002938-002E Cardiolab® II Plus Amplifier Manual A-11

Appendix A – Maintenance and Troubleshooting

 Display the stim channels on one of the empty pages.
 Using the lab’s stimulator, stimulate to each of the four inputs to

ensure that the amplifier recognizes the stimulus. If no stimulator is

available, connect the 2 mm pins from your stimulator to each of the

stim inputs one at a time. Output a signal of at least.3 V and make

sure the signal appears on each of the stim channels as you connect

it.

 In the Real-Time window, select the Administration menu and select

Amplifier Test.

 Choose Register readback and perform the readback function. The

values sent should be the same ones as the ones received.

 Click on the walking ones tab and perform the walking ones test only

once. Make sure there are no errors during the test. Errors imply

communication problems with the channels.

 Select the Stim Walking Ones tab and perform the test once. Once

again, there should be no errors.

Storing and Transporting the Amplifier

When the amplifier is transported or will not be in use for a long period of
time:

 Disconnect and properly store any patient cables.
 Place the amplifier in an environment with a temperature between -

15°C to + 50°C and a non-condensing humidity less than 95%

relative at 35°C.

A-12 Cardiolab® II Plus Amplifier Manual 2002938-002E

Maintenance/Repair Log

Unit Serial Number:
Institution Name:

Date Maintenance/Repair Technician

Appendix A – Maintenance and Troubleshooting

2002938-002E Cardiolab® II Plus Amplifier Manual A-13

Appendix A – Maintenance and Troubleshooting

Unit Serial Number:
Institution Name:

Date Maintenance/Repair Technician

A-14 Cardiolab® II Plus Amplifier Manual 2002938-002E

B Appendix B– Technical

Information

2002938-002E Cardiolab® II Plus Amplifier Manual B-1

Appendix B– Technical Information

Technical Specifications

B-2 Cardiolab® II Plus Amplifier Manual 2002938-002E

Appendix B– Technical Information

2002938-002E Cardiolab® II Plus Amplifier Manual B-3

Appendix B– Technical Information

B-4 Cardiolab® II Plus Amplifier Manual 2002938-002E

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