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3.7 Electrical Safety Test 
See A Electrical Safety Inspection for electrical safety tests. 
 
 
3.8 Touchscreen Calibration 
Tools required: 
  None. 
 
1. Select the [Cal. Screen] QuickKey or select [Main Menu]→ [Maintenance >>]→ 
[User Maintenance >>]→ enter the required password→ [Cal. Touchscreen]. 
2. The 
  symbol will appear at different positions of the screen. 
3.  Select, in turn, the central point of the 
 symbol. 
4.  After the calibration is completed, the message [Screen Calibration Completed!] is 
displayed. Select [Ok] to confirm the completion of the calibration. 
 
 
3.9 Recorder Check 
Tools required: 
  None. 
 
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 patient 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.