Revision L MAC™ 3500 Resting ECG Analysis System 4-9
2021337-036
Troubleshooting: General Fault Isolation
Poor Quality ECGs
Poor quality ECGs can be caused by factors in the environment, inadequate patient
preparation, hardware failures related to the acquisition module, leadwires, cables,
or problems in the unit.
Use a simulator to obtain an ECG report.
If the report is good, the problem is
external to the unit.
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