5-13 
 
5.4.4 Touchscreen Calibration 
Tool required: 
  None 
 
To perform a touchscreen calibration: 
1.   Select  [Main Menu]  → [Maintenance >>]  → [Cal. Touchscreen]. The 
  symbol will appear at different 
positions of the screen. 
2.  Touch, in order, the central point of the    symbol. After the calibration is completed, the message [Screen 
Calibration Completed!] is displayed.   
3.   Select  [Ok] to confirm the completion of the calibration. 
 
 
5.4.5 Recorder Check 
Tool required: 
  None 
 
To perform a recorder check: 
1.  Print ECG waveforms. The recorder should print correctly and the printout should be clear. 
2.  Set the recorder to some problems such as out of paper, etc. the monitor should give corresponding prompt 
messages. After the problem is removed, the recorder should be able to work correctly. 
3.  Switch automatic alarm recording for each parameter ON and then set each parameter’s limit outside set alarm 
limits. Corresponding alarm recordings should be triggered when parameter alarms occur. 
 
 
5.4.6 Battery Check 
Tool required: 
  None 
 
 
5.4.6.1 Battery Function Test 
To perform a function test: 
1.   If the monitor is installed with a battery, remove the battery first. 
2.   Verify that the monitor works correctly when running powered from an AC source. 
3.   Insert the battery per the procedures provided in the Operator’s Manual. 
4.   Remove the AC power cord and verify that the monitor still works correctly.