3-8
ECG Calibration
The ECG signal may be inaccurate due to hardware or software problems. As a result, the
ECG wave amplitude becomes greater or smaller. In that case, you need to calibrate the
ECG module.
1. In the main menu, select [Maintenance >>]→[User Maintenance >>]→enter the
required password and then select [Calibrate ECG] from the popup menu. A square
wave appears on the screen and the message [ECG Calibrating] is displayed in the
ECG waveform area.
2. Compare the amplitude of the square wave with the wave scale. The difference should
be within 5%. You can also print out the square wave and wave scale by recorder in
order to measure the difference more precisely.
3. After the calibration is completed, select [Stop Calibrating ECG].
3.4.4 Resp Performance Test
Tool required:
Patient simulator
1. Connect the patient simulator to the Resp connector on the monitor.
2. Configure the simulator as follows: base impedance line 1500 Ω; delta impedance 0.5
Ω, respiration rate 40 rpm.
3. The displayed Resp value should be 40 ± 2 rpm.
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