Gima ECG90A Manuel D'utilisation page 40

8.4 Baseline drift
Whether the electrode installation is stable?

Whether the connection of lead cables or electrodes is reliable?

Whether the electrodes and patient skin are cleaned and are daubed with enough

conductive paste?
Whether it is caused by patient's movement or breathing?

Whether the electrodes or leads are in bad connection?

Note: If the interference can not be removed after taking above measures, please use a
baseline filter.
8.5 Troubleshooting list
Phenomenon
Too large
interference,
disorderly
waveform
Baseline burr
Not regular
waveform, large
up-and-down,
beeline figure
Cause of failure
1. Grounding cable is not
connected reliably.
2. Lead cables are not connected
reliably.
3. There is AC interference.
4. Patient is nervous and can not
keep quiet.
1. AC interference is large.
2. Patient nervous, and EMG
interference is large.
1. Bad electrode conductivity.
2. Low battery.
3. Bad connection
electrodes and patient skin.
4. Loose connection between lead
cables and the device's plug.
5. Bad connection
electrodes and lead cables.
1. Check the power cord and
lead cables.
2. Let the patient prepare for the
measurement.
1. Improve the environment.
2. If the bed is made of steel,
replace it.
3. The power cable and lead
cables are not parallel or too
close to each other.
1. Use alcohol of high quality.
2. Clean electrode slice and the
between skin under the electrode with
alcohol.
3. Charge the battery.
between
34
Solutions