53
The metal bed is properly grounded
Keep the patient from physical contact with the surroundings.
There is no powerful equipment operating nearby, such as X ray or ultrasonic machine
The patient don’t wears jewelry such as glass or gem
If interference still exists, please reset AC filter according to local AC frequency
7.5 EMG Interference
Phenomenon: Recorded ECG base line has irregular vibration, as shown in the following ECG
waveforms.
Solutions:
Move to a comfortable room if the room is uncomfortable
Let the patient get relaxed
Make sure the bed is not too small.
The patient should keep quiet
Change the limb electrodes if they are too tight.
If the EMG interference still exists, please apply EMG filter .The waveform will be weakened a
little and have obvious effect for the weakening of R wave.
7.6 Baseline Drift
Phenomenon: The baseline of the recorded ECG waveforms wandering as shown in the following
ECG waveforms.
Summary of Contents for EM-1203
Page 2: ...2...
