Baseline Drift; Troubleshooting List - CONTEC MEDICAL SYSTEMS EKG6012 User Manual

Note: If the interference can not be removed after taking above measures, please use a
EMG filter. The ECG waveform recorded at this time will be slightly attenuated.

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
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.
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.
32
EKG6012
Solutions