Gima 1200G ECG, Руководство пользователя

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8.4 Baseline drift
Ø Whether the electrode installation is stable?
Ø Whether the connection of lead cables or electrodes is reliable?
Ø Whether the electrodes and patient skin are cleaned and are daubed with enough
conductive paste?
Ø Whether it is caused by patient's movement or breathing?
Ø 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 Cause of failure Solutions
Too large interference,
disorderly waveform
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. Check the power cord and
lead cables.
2. Let the patient prepare for
the measurement.
Baseline burr
1. AC interference is large.
2. Patient nervous, and EMG
interference is large.
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.
Not regular waveform, large
up-and-down, beeline figure
1.Bad electrode
conductivity.
2. Low battery.
3. Bad connection between
electrodes and patient skin.
4. Loose connection
between lead cables and the 1. Use alcohol of high
quality.
2. Clean electrode slice and
the skin under the electrode
with alcohol.
3. Charge the battery.