Troubleshooting - Saadat DENA 650 User Manual

Chapter 9: Troubleshooting and Error messages

Troubleshooting

Repairing the internal parts of DENA 650 must be only done by trained and authorized personnel of
After Sale Service; otherwise the manufacturer will not take any responsibility for any possible hazard
to the patient and the device.
Troubleshooting guide is intended to help users to solve minor problems caused by incorrect use of the
DENA 650 or failure of accessories. When you face any problem, please ensure that you have followed
all actions mentioned in Solution column before you contact After- Sales Services.
Problem
The device is not turned on
The device is unable to run on the
battery
NO ECG waveform
Inappropriate HR value
Possible Cause
● Battery is discharged.
● Faulty fuse
● ECG cable connection
failure
●Faulty ECG cable
●Improper
placement
electrodes
● Noisy and improper ECG
signal
● After connecting the
electrodes and before
recording, wait for a few
moments.
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Solution
● Check AC power path.
● Call After- Sales Services.
● Charge the battery for 5 hours.
● Check the battery fuse.
● Call After- Sales Services.
● Check ECG cable connection
to the device.
● Check ECG cable connection
to the electrodes.
● Check ECG cable connection
to the patient.
● Short circuit all leads with each
of
other. If ECG cable is ok, lead
error message will not appear.
● Do not use old and faulty
electrodes.
● Call After- Sales Services.
● Check the leads and electrodes.
● Make sure the patient is relaxed
and immobile.
● Pay attention to the following
points (related to signal quality)
● Call After- Sales Services.