User's Manual

F Series Fetal & Maternal Monitor User Manual Maternal Monitoring
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1 Select the setup key
on the main interface.
2 Select Mother > Lead.
3 Select I, II (default) or III.
4 Select OK.
9.1.5 Changing ECG Gain
You can change the ECG gain. The ECG gain affects overall numeric and scope of the ECG
waveform.
1 Select the setup key
on the main interface.
2 Select Mother > Gain.
3 Select X1/4, X1/2, X1 (default), X2 or Auto.
‘Auto’ means the monitor adjusts the gain automatically. The system displays a 1mv scale
at the left side of the ECG waveform. The height of 1mv bar is directly proportional to the
waveform amplitude.
4 Select OK.
9.1.6 Enabling ECG Calibration
When windage of the ECG waveform is suspected, enable ECG calibration to validate the wave.
1 Select the setup key on the main interface.
2 Select Mother > ECG Calibration.
3 Select Calibration or OFF (default).
4 Select OK.
The monitor creates a square wave in the ECG area. Compare the square wave with the ECG
gauge. If the error is larger than 0.5mm, change the ECG gain.
When the error is smaller than 0.5mm, calibration is completed. Disable ECG calibration in the
same directory.
ECG Gauge