
iSE Series Electrocardiograph Service Manual Inspection and Troubleshooting
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5.
Parameter Troubles
Problem Description
Possible Causes
Actions
No ECG waveform
①
Poor connection between
the
patient
and
the
electrodes
②
Poor connection between
the ECG cable and the
electrocardiograph
③
Bad connection cable of
parameter board
④
ECG board or main
board failure
①
Attach the electrodes to the
patient again or clean the
electrode location on body
surface with alcohol
②
Connect the ECG cable to the
electrocardiograph
③
Replace the connection cable
④
Replace the ECG board or
main board
ECG waveform is
abnormal or disturbed
①
Poor connection between
the
patient
and
the
electrodes
②
ECG cable failure
③
ECG board failure
①
Attach the electrodes to the
patient again or clean the
electrode location on body
surface with alcohol
②
Replace the ECG cable that is
defective
③
Replace the ECG board
Heart rate is not accurate
Waveform measuring failure
Adjust the electrode connection to
the body
ECG waveform has burrs
①
Poor connection between
the
patient
and
the
electrodes
②
ECG board failure
③
Electrical
interference
from
another
device
(microwave
oven,
cellular phone, wireless
device, etc.)
④
An improperly-grounded
electrical device near the
①
Attach the electrodes to the
patient again or clean the
electrode location on body
surface with alcohol
②
Replace the ECG board
③
Look for devices that could be
causing electrical interference,
and then unplug the devices.
Or run the electrocardiograph
on the battery power.
④
Lay the lead wires alongside
the limbs and away from any