25-3
Touchscreen calibration 1. When the touchscreen appears abnormal.
2. After the touchscreen is replaced.
Recorder check Following any repair or replacement of the recorder.
Network print test
1. When first installed.
2. Whenever the printer is serviced or replaced.
Battery check Functionality test 1. When first installed.
2. Whenever a battery is replaced.
Performance test Once every six months or if the battery run time
reduced significantly.
25.3 Checking Monitor and Module Information
To view the information about system start time, selftest, etc., select [Main
Menu][Maintenance >>][Monitor Information >>]. You can print out the information
for the convenience of troubleshooting. The information will not be saved during shut down.
You can also view the information about the monitor configuration and system software
version by selecting [Main Menu][Maintenance >>][Software Version >>].
25.4 Calibrating ECG
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. Select the ECG parameter window or waveform area[Filter][Diagnostic].
2. Select [Main Menu][Maintenance >>]ė[User Maintenance >>]ėenter the
required passwordė[Module Maintenance >>][Calibrate ECG]. A square wave
appears on the screen and the message [ECG Calibrating] is displayed.
3. Compare the amplitude of the square wave with the wave scale. The difference should
be within 5%.
4. After the calibration is completed, select [Stop Calibrating ECG]
You can print out the square wave and wave scale and then measure the difference between
them if necessary. If the difference exceeds 5%, contact your service personnel.
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