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Problem
No waveform on
display. Trace
frozen &
communication
error.
No waveform on
display. Trace
frozen & no
communication
error.
Sweeping waveform
but no ECG signal.
Sweeping waveform
but no ECG signal.
Sweeping waveform
but no ECG signal.
ECG waveform but
no heart rate
display.
Excessive artifacts
on ECG without
scanning'
Excessive artifacts
on ECG while
scanning'
Possible Cause
Wrong com port
selected.
No power to the ERT
Control/Gating Module
or communication
problem.
No communication to
the ERT Module.
Lead off.
Offset voltage too large. Check offset voltage in system
R-detect parameters
incorrect.
Movement of leads in
magnet bore.
Movement of leads or
module in magnet bore.
Revision C, August 2013
Troubleshooting
Corrective Action
Select the correct com port in
PC-SAM setup menu.
Check the power and serial
connections
Check power to the ERT
Module & fiber optic cable
connections. Look for red light
in the fiber optic driver.
Check lead attachment.
info window. Check for faulty
temp probe by disconnecting
the probe from the ERT
Module & check for needles in
muscle.
Set correct values.
Check for vibration or air flow.
Tape leads and/or ERT
module.
Check for vibration. Tape leads
& ERT module to restrain
motion.
Appendix C
See
2-3
3-6
2-1
2-2
2-2
4-2
9-1
4-7
3-9
4-1
4-1
C-1
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