Changing Ecg Source; Changing Ecg Gain; Enabling Ecg Calibration - EDAN F9 User Manual

F9, F9 Express Fetal & Maternal Monitor User Manual
2 The electrodes for wireless MECG cable should be placed on flat and smooth
positions right in the middle of the first intercostals space. Please check the contact
of the electrodes regularly.
3 When the pregnant woman is lying on the left or right side, please make sure the
electrodes are well-placed.
NOTE:
1 After the monitor is switched on, if electrodes are not well attached or fell off, alarm
message "ECG LEADS OFF" will appear on the screen to draw your attention.
2 Vigorous exercise will interfere with MHR monitoring and computing. Please try to
avoid it.

9.1.6 Changing ECG Source

Refer to figure 9-2, the ECG signal can come from channel I, II or III. In the ECG trace area of
the main interface, ECG (II, X1) indicates the ECG source and gain.
If the electrodes are tightly attached to the patient but ECG waveform is not accurate, switch
ECG source to another lead by performing the following procedures:
1 Select the setup key
2 Select Mother > Lead.
3 Select I, II (default) or III.
4 Select OK.

9.1.7 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
2 Select Mother > Gain.
Select X1/4, X1/2, X1 (default), X2 or Auto.
3
„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.

9.1.8 Enabling ECG Calibration

When windage of the ECG waveform is suspected, enable ECG calibration to validate the wave.
WARNING
on the main interface.
on the main interface.
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Maternal Monitoring