Revision D MAC 1200 resting ECG analysis system 7-7
2012250-095
Service and Maintenance: Technical Inspections/Preventative Maintenance
Start the recording. The pace pulses must be visible as spikes on the recording
output.
Identification of Disconnected Electrodes
Reset the simulator to ECG signal at a heart rate of 60 bpm. Remove one electrode
after the other from the ECG simulator.
Activate the Automatic (12-lead) mode in the MAC 1200 resting ECG analysis
system device to be tested without activating it by pressing the Start key.
Ensure that each disconnected electrode is displayed correctly and that an acoustic
alarm signal sounds.
Checking the Charge Status of the NC Battery
The NC battery can be checked as follows.
Discharging the battery, followed by charging up completely (duration 4 hours),
followed by discharging in standby mode without recording.
If the operating time for this procedure is under 2.5 hours, the battery should be
replaced.
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