GE CAM-14 User manual
CAM-14 Acquisition Module
field service manual
PN 421315-001
Revision A
T-2
CAM-14 Acquisition Module
field service manual
PN 421315-001 Revision A
3
2
1
NOTE
Due to continuing product innovation,
specifications in this manual are subject to
change without notice.
MD1320-005
Copyright GE Marquette Medical Systems, Inc. 1998. All rights reserved.
Trademarked names appear throughout this document. Rather than list the names and entities that own the
trademarks or in sert a trademark s y mbol with each mentio n of the trademarked n am e, the publisher stat es that
it is using the names only for editorial purposes and to the benefit of the trademark owner with no intention of
improperly using the tra d emark.
900 SC, ACCUSKETCH, AccuVision, APEX , AQUA-KNOT, ARCHIVIST, Autoseq, BABY MAC, C Qwik Connect,
CardioServ, CardioSmart, CardioSys, CardioWindow, CASE, CD TELEMETRY, CENTRA, CHART GUARD, CINE
35, COROLAN, CORO, COROMETRICS, Corometrics Sensor Tip, CRG PLUS, Digistore, Digital DATAQ, E for M,
EAGLE, Event-Link, FMS 101B, FMS 111, HELLIGE, IMAGE STO RE , INTE LLIMOTION, LASER SXP, MAC, MACLAB, MACTRODE, MARQUETTE, MARQUETTE MAC, MARQUETTE MEDICAL SYSTEMS, MARQUETTE UNITY
NETWORK, MARS, MAX, MEDITEL, MEI, MEI in the circle logo, MEMOPORT, MEMOPORT C, MINISTORE,
MINNOWS, Monarch 8000, MULTI-LINK, MULTISCR IPTOR, MUSE, MUSE CV, Neo-Trak, NEUROSCRIPT,
OnlineABG, OXYMONITOR, Pres-R-Cuff, PRESSURE-SCRIBE, QMI, QS, Quantitative Medicine, Quantitative
Sentinel, RAMS, RSVP, SAM, SEER, SILVERTRACE, SOLAR, SOL ARV IEW, Spectra 400, Spectra-Overview,
Spectra-Tel, ST GUARD, TRAM, TRAM-NET, TRAM-RAC, TRAMSCOPE, TRIM KNOB, Trimline, UNITY logo,
UNITY NETWORK, Vari-X, Vari-X Cardiomatic, VariCath, VARIDEX, VAS, Vision Care Filter, are trademarks of
GE Marquette Medical Systems, Inc., registered in the United States Patent and Trademark Office.
2SL, 15SL, Access, AccuSpeak, ADVANTAGE, BAM, BODYTRODE, Cardiomatic, CardioSpeak, CD TELEMETRY®
-LAN, CENTRALSCOPE, Corolation, DASH, EK-Pro, EDIC, Event-Link Cumulus, Event-Link Cirrus, Event-Lin k
Nimbus, HI-RES, ICMMS, IMAGE VAULT, IMPACT.wf, INTER-LEAD, IQA, LIFEWATCH, Managed Use,
MARQUETTE PRISM, MARQUETTE® RESPONDER, MENTOR, MicroSmart, MMS, MRT, MUSE CardioWindow,
NST PRO, NAUTILUS, OCTANET, O2 SENSOR, OMRS, PHi-Res, Premium, Prism, QUIK CONNECT V. QUICK
CONNECT, QT Guard, RAC, SMARTLOOK, SMART-PAC, Spiral Lok, Sweetheart, UNITY, Universal, Waterfall,
Walkmom are trademarks of GE Marquette Medical Systems, Inc.
T-2
CAM-14 Acquisition Module
421315-001
18 December 1998
Revision A
Contents
1 Introduction ................................................. 1-1
Manual Information .................................................................. 1-3
Revision History ................................................................................. 1-3
Manual Purpose ................................................................................. 1-3
Intended Audience ............................................................................. 1-3
Safety Information .................................................................... 1-4
Definitions .......................................................................................... 1-4
Messages ........................................................................................... 1-4
Responsibility of the Manufacturer .................................................... 1-5
Intended Use ...................................................................................... 1-5
General .............................................................................................. 1-5
Equipment Symbols ........................................................................... 1-6
Service Information .................................................................. 1-7
Service Requirements ........................................................................ 1-7
Equipment Identification .................................................................... 1-7
2 Equipment Overview ...................................... 2-1
Technical Characteristics ........................................................... 2-3
General Description ......................... ....................................... ........... 2-3
Power Requirements ......................................................................... 2-4
Operation ...................................................................... 2-5
Operating Controls ............................................................................. 2-5
Leadwire Attachments ....................................................................... 2-5
Leadwire Adapters ................................................................ 2-6
Lead Configurations ............................................................. 2-7
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3 Maintenance ................................................ 3-1
Recommended Maintenance ....................................................... 3-3
General .............................................................................................. 3-3
Cleaning ............................................................................................. 3-3
Exterior Surfaces .................................................................. 3-3
Electrodes ............................................................................. 3-3
Visual Checking ................................................................................. 3-4
Built-In Diagnostic Tests .................................................................... 3-4
Domestic Electrical Safety Tests ................................................... 3-5
AC Line Voltage Test .......................................................................... 3-5
120 VAC, 50/60 Hz ...............................................................3-5
240 VAC, 50/60 Hz ...............................................................3-5
Leakage Tests .................................................................................... 3-6
Leakage Test Diagrams ...................................................................... 3-7
Test #1 Ground-wire-leakage-to-ground ........................................... 3-7
Test #2 Chassis-leakage-to-ground ................................................... 3-7
Test #3 Patient-cable-leakage-to-ground ......................................... .3-8
Test #4 Patient-cable-leakage-into-patient Leads-from 120 VAC ...... 3-8
Ground Continuity 3-9
Disassembly ..................................................................... 3-10
4 Parts Lists and Drawings ................................. 4-1
Ordering Parts ...................................................................... 4-3
Introduction ....................................................................................... 4-3
900995-001A Acquisition Module Assembly ................................. 4-4
420101-001B 14 Leadwire Kit .................................................. 4-7
417483-9XXA Leadwire, Multi-Link, Universal ............................. 4-8
900179-201 Leadwire Adapter Kit - Banana .............................. 4-10
900179-202 Leadwire Adapter Kit - Mactrode .................... .... .... 4-11
900179-203 Leadwire Adapter Kit - Grabber .............................. 4-12
ii
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Revision A
5 PCB Assemblies ........................................... 5-1
8001280-001A Data Acquisition Module ....................................... 5-3
SD8001280-001ASchematic, Main Board .................... ... .... ............. 5-8
Appendix A: Abbreviations ...............................A-1
Standard Abbreviations .............................................................. A-3
Revision A
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iv
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Revision A
1 Introduction
Manual Information ..................................................................... 3
Revision History ..................................................................................... 3
Manual Purpose ..................................................................................... 3
Intended Audience ................................................................................. 3
Safety Information ....................................................................... 4
Definitions .............................................................................................. 4
Messages ............................................................................................... 4
Responsibility of the Manufacturer ........................................................ 5
Intended Use .......................................................................................... 5
General .................................................................................................. 5
Equipment Symbols ............................................................................... 6
Service Information ..................................................................... 7
Service Requirements ............................................................................ 7
Equipment Identification ........................................................................ 7
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1-2
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Manual Information
Introduction: Manual Information
Revision History
Manual Purpose
Each page of the document has the document part number followed by
a revision letter located at the bottom of the page. This letter identifies
the document’s update level. The latest letter of the alphabet
corresponds to the most current revision of t he document.
The revision history of this document is summarized in the table below.
Table 2-1. Revision History
Revision Date Comment
A 18 December 1998 Initial release.
This manual suppl ies technical infor mation for service representative
and technical personnel so they can maintain the equipme nt to the
assembly level. Use it as a guide for maintenance and electrical repairs
considered field repairable. Where necessary the manual identifies
additional sources of re levant information and or t echnical assistance.
See the host operator manual for instructions necessary to operate the
equipment safely in accordance with its function and intended use.
Intended Audience
This manual is inten ded for the person who uses, maintains, or
troubleshoots this equipment.
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Introduction: Safety Information
Safety Information
Definitions
Messages
DANGER
Do NOT use in the
presence of flammable
anesthetics.
DANGER
Indicates an imminently hazardous
situation which, if not avoided, WILL
result in death or serious injury.
WARNING
Indicates a potentially hazardous
situation which, if not avoided, COULD
result in death or serious injury.
CAUTION
Indicates a potentially hazardous
situation which, if not avoided may result
in minor or moderate injury.
Additional safety messages may be found throughout this manual that
provide appropria te safe operation inform ation.
WARNING
Keep the conductive
parts of lead electrodes
and associated parts
M15287-1B
away from other
conductive parts,
including earth.
M15287-4C
WARNING
Do NOT contact unit or
patient during
defibrillation.
CAUTION
This equipment contains no user
serviceable parts. Refer servicing to
qualified service personnel.
M15287-8C
M15287-38A
CAUTION
Federal law restricts this device to sale by
or on the order of a physician.
M15287-17A
CAM-14 Acquisition Module
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Introduction: Safety Information
Responsibility of the
Manufacturer
Intended Use
General
GE Marquette Medical Sy stems is responsible for th e effects of safety,
reliability, and perfor mance only if:
■ Assembly operations, extensions, readjustments, modifications,
or repairs are carried out by persons authorized by Marquette.
■ The electrical installation of the relevant room complies with
the requirements of the appropriate regulations.
■ The equipment is used in accordance with the instructions for use.
The CAM-14 acquistion module is intended to acquire analog ECG
signal, digitize it and t ransmit the signal t o a host unit. The circuitry is
designed to protect the host unit against the effects of cardiac
defibrillator discharge to ensure recovery.
This device is inten ded for use u nder t he di rect supervi sion of a lice nsed
health care pr actitioner.
This equipment is protected against the effects of cardiac defibrillator
discharge to ensure re covery, as required by test standards.
This equipment will not cause abnormal operation of the patient’s
cardiac pacemaker or other electrical stimulator.
This device uses a computerized ECG analysis program which can be
used as a tool in ECG tracing interpretation. This com puterized
interpretatio n is only significant when used in co njunction with clinical
findings. All computer-generated tracings should be overread by a
qualified physicia n.
To ensure accuracy, use only computer-generated tracings and not the
display for physician int erpretation.
To ensure pati en t safety, use only parts an d a cce ssories manufact ured
or recommended by GE GE Marquette Medical Systems.
Contact GE Marquette Medical Systems for information before
connecting any device s to this equipment that a re not recommended in
this manual.
If the installation of this equipment, in the USA, will use 240 V rather
than 120 V, the source must be a center-tapped, 240 V, single-phase
circuit.
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.
The use of ACCESSORY equipment not complying with the equivalent
safety requirements of this equipment may lead to a reduced level of
Revision A 1-5
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Introduction: Safety Information
safety of the resulting sy st em. 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.
Equipment Symbols
M13932
The following symbols appear on the equipment.
Type BF equipment. Type BF equipment is suitable for intentional external and
internal application to the patient, excluding a direct conductive connection to the
patient’s heart. Type BF equipment has an F-type applied part. The paddles indicate
that the equipment is defibrillator proof.
CAM-14 Acquisition Module
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Revision A1-6
Service Information
Introduction: Service Information
Service Requirements
Equipment Identification
Refer equipment servicing to GE Marque tte Medical Systems’
authorized service per sonnel only. Any unauthorize d attempt to repair
equipment under warranty voids that warranty.
It is the user’s responsibility to report the need for service to GE
Marquette Medical Systems or to one of their authorized agents.
Every GE Marquette Medical Systems device has a unique s erial numbe r
for identification. The serial number appears on the product label on
the base of each unit.
XXXXXXXXX
XXXXXXXX XXXXXXX XXXXXXX XXX
XXXXXXXXX XX XXXX XX XXXXX
J6XX0415FXX
I
Table 2-2. Equipmen t Identifications
Item Name Description
G
H
F
D
E
A
B
C
MD1113-022B
A name of device AM-114 Acquisition Module
B manufacturer GE Marquette Medical Systems, Inc.
C serial number Unique identifier
D device characteristics One or two letters that further describe the unit, for example: P = prototype not
conforming to marketing specification; R = refurbished equipment; S = special
product documented under Specials part numbers; U = upgraded unit
E division F = Cardiology G = Monitoring J = GW Labs
F product sequence number Manufacturing number (of total units manufactured)
G product code Two-character product descriptor MF = CAM-14 Acquisition Module
H year manufactured 7 = 1997, 8= 1998, 9= 1999, (and so on)
I 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
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Introduction: Service Information
CAM-14 Acquisition Module
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Revision A1-8
2 Equipment Overview
Technical Characteristics .............................................................. 3
General Description ......................... ....................................... ............... 3
Power Requirements ............................................................................. 4
Operation ................................................................................. 5
Operating Controls ................................................................................. 5
Leadwire Attachments ........................................................................... 5
Leadwire Adapters ....................................................................6
Lead Configurations .................................................................7
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Technical Characteristics
Equipment Overview: Technical Characteristics
General Description
The acquisition module performs high resolution ECG data acquisition
for use with host equipment (resting ECG analysis systems and exercise
systems). The acquisition m o du le has the following feature s:
■ ac leadfail bias,
■ l ead off dete ct ion,
■ 4000 Hz sampling rate,
■ patient isolation,
■ software updates via floppy diskette, and
■ Hi-Res analysis on 14-lead units
■ fu nc ti on key cont rol of host equi pme nt fu nc ti ons
The acquisition module provides patient electrical isolation for the host
equipment. The minute ECG s ignal s from th e pati ent’ s skin ar e rec eived
by the electrodes and sent to the acquisition module via leadwires. The
acquisition module then amplifies, digitizes, and performs some
processing on the signals.
This whole process is contro lle d by a microprocessor in the acquisition
module. The acquisition module then sends the serial, digitized, ECG
data to the host equipment in 16 bit “words”. The host equipment
communicates to the acquisition module using this same serial line.
Table 2-1. Safety
Item Description
Certification CE Marking for Council Directive 93/42/EEC
Type of Protection Against Electrical
Not applicable
Shock
Degree of Protection Against Ingress
Ordinary
of Liquids
Handling of Disposable Supplies and
Other Consum ables
■ Use only as manufactured or recommended by Marquette.
■ Follow manufacturer’s instructions for use for disposable/consumable product.
■ Follow local environmental guidelines concerning the disposal of hazardous
materials (e.g. lead acid batteries)
Patient Mode of Operation Continuous
Patient Leakage Current less than 10µA
Degree of Protection Against Electrical
type BF applied parts
Shock
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Equipment Overview: Technical Characteristics
Table 2-1. Safety (Continued)
Item Description
Maintenance Frequency ■ Recommended user daily visual inspection and cleaning.
■ Recommended six-month routine maintenance checks and test procedures
performed by qualified technical personnel.
Repair Guidelines Calibration instructions, equi pment descriptions, and all other service informati on to
repair those parts of the equipment designated as field repairable by qualified
technical personnel is available in the service manual.
Upon request, GE Marquette Medical Systems will provide circuit diagrams and
component parts lists for printed circuit boards deemed repairable by qualified
technical personnel.
Table 2-2. Environmental
Item Description
Operating Instructions
Temperature 0°C to 50°C (32°F to 154°F)
Relative Humidity 20% to 95% noncondensing
Atmosphere Pressure 70 to 106 KPa (PRELIMINARY pending final testing)
Storage Conditions
Temperature –20°C to 60°C (–4°F to 172°F)
Relative Humidity 5% to 95% noncondensing
Atmosphere Pressure 50 to 106 KPa (PRELIMINARY pending final testing)
Power Requirements
The acquisition module draws it s power, 12 V dc, from the host unit.
(See the host equipment’s field service manual for the host equ ipment’s
power requirements.) The acquisition module provides the patient
electrical isolation for the host equipment.
CAM-14 Acquisition Module
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Revision A2-4
Operation
Equipment Overview: Operation
Operating Controls
Leadwire Attachments
There are three controls on the acquisition module that are
programmed by the host to record an ECG, record a rhythm, or stop the
writer. See the host equipment operator’s manual for the for specific
information on using th e a cquisition module.
2 31
MD1320-002
The leadwires are shown with 2 ends. The figure below shows how to
use both ends of the leadwires. There are various options for leadwire
adapters, the 4 mm pin, stress grabbe r, or MACTR ODE cli p. See cha pte r
5, “Parts Lists and Drawing s” for part numbers.
Flat Surface
Step 1
Step 3
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Step 2
Step 4
MD1320-003B
Equipment Overview: Operation
Leadwire Adapters
The acquisition module has universal leadwires which can be made into
any lead of 3 basic types by using the adapters on the ends as shown in
the figure below. The acquisition module leadwire adapters have a
variety of configuration s as shown below. (See chapter 4, “Parts Lists
and Drawings” for part numbers for the various individual leadwire
adapters.)
4 mm Pin
Stress Grabber
MACTRODE Clip
Universal Leadwire End
MD1287-004A
Refer to the figure on the next page for various labels that are affixed to
the acquisition mod ule for these configurations.
CAM-14 Acquisition Module
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Equipment Overview: Operation
Lead Configurations
10 Lead AHA
14 Lead AHA
The various lead configurations are shown in the figure below. The
acquisition module may be configured in any one of these ways. See
chapter 5, “Parts Lists and Drawings” for part numbers.
N R C1 C2 C3 A1 A2 A3 A4 C4 C5 C6 L F
2 31
acquisition module
RL RA V1 V2 V3 V4 V5 V6 LA LL
HE MRL RA V1 V2 V3 I V4 V5 V6 LA LL
14 Lead AHA Pediatric
10 Lead IEC
14 Lead IEC
14 Lead IEC Pediatric
14 Lead AHA AUX
14 Lead IEC AUX
RL RA V1 V2 V3
V3R V4R
V7 V4 V5 V6 LA LL
N R C1 C2 C3 C4 C5 C6 L F
N R C1 C2 C3 I C4 C5 C6 L F
N R C1 C2 C3
RL RA V1 V2 V3 A1 A2
HE
C3R C4R
C7 C4 C5 C6 L F
A3 A4MV4 V5 V6 LA LL
N R C1 C2 C3 A1 A2 A3 A4 C4 C5 C6 L F
MD1320-004
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Equipment Overview: Operation
CAM-14 Acquisition Module
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Revision A2-8
3 Maintenance
Recommended Maintenance .......................................................... 3
General .................................................................................................. 3
Cleaning 3
Exterior Surfaces ......................................................................3
Electrodes .................................................................................3
Visual Checking 4
Built-In Diagnostic Tests 4
Domestic Electrical Safety Tests ...................................................... 5
AC Line Voltage Test .............................................................................. 5
120 VAC, 50/60 Hz ...................................................................5
240 VAC, 50/60 Hz ...................................................................5
Leakage Tests 6
Leakage Test Diagrams 7
Test #1 Ground-wire-leakage-to-ground ...........................................7
Test #2 Chassis-leakage-to-ground .............................................. .....7
Test #3 Patient-cable-leakage-to-ground ..........................................8
Test #4 Patient-cable-leakage-into-patient Leads-from 120 VAC .......8
Ground Continuity 9
Revision A
Disassembly ............................................................................ 10
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3-2
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Recommended Maintenance
Maintenance: Recommended Maintenance
General
Cleaning
Other than daily cleaning and occasional visual checking, the
acquisition module requires no maintena nce.
Only qualified service personnel should attemp t repairing components
and assemblies int ernal to the acquis ition module. For servic e and
repair, return the acquisition module to the factory for 48-hour turn
around service. Call Tech Support for assistance. (See the “How to
Reach Us” page in the front of the manual.)
NOTE
Unless you have an Equipment Maintenance Contract,
GE Marquette Medical Systems does not in any
manner assume the responsibility for performing the
recommended maintenance procedures. The sole
responsibility rests with the individual or institution
using the equipment. GE Marquette Medical Systems
service personnel may, at their discretion, follow the
procedures provided in this manual as a guide during
visits to the equipment site.
Exterior Surfaces
Electrodes
Disconnect the acquisition module interface cab le from the host
equipment.
■ Use a soft cloth moistened with water and a mild detergent.
Wipe the exterior of the unit, the leadwires, and the acquisition
module interface cable with the damp cloth. Dry all surfaces
with a clean, soft cloth or paper towel.
■ DO NOT allow any excess water to get inside the acquisition
module or onto the leadwires or interface cable.
■ Do not immerse acquisition module in water.
■ Do not use alcohols, organic solvents, or abrasive cleaning
agents.
■ After each use, wipe reusable electrodes with a tissue or damp
cloth to clean them of electrode paste. At the end of each day,
wash reusable electr od es thoroughly with soap and water and
dried.
■ For suction electrodes, use a toothbrush to clean out the cups.
Revision A 3-3
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