Mindray uMEC10, Service Manual

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3. In the [ Calibrate CO
2
] menu, select [ Main Menu ] → [ Maintenance >> ] → [ User
Maintenance >> ] → enter the required password → [ Module Maintenance >> ] →
[ Maintain CO
2
>> ] → [ Calibrate CO
2
>> ].
4. In the [ Calibrate CO
2
] menu, select [ Zero ].
5. After the zero calibration is finished successfully, connect the equipment as follows:
6. Open the relief valve, and adjust it until the flowmeter has a stable reading between 10
ml/min and 50 ml/min.
7. In the text box on the upper right corner of the [ Calibrate CO
2
] menu, enter the vented
gas concentration.
8. In the [
Calibrate CO
2
] menu, the measured CO
2
concentration is displayed. After the
measured CO
2
concentration becomes stable, select [ Calibrate ] to calibrate the CO
2
module.
9. If the calibration is finished successfully, the message [ Calibration Completed! ] is
displayed. If the calibration failed, the message [ Calibration Failed! ] is displayed. In
this case, perform another calibration.
5.5 Nurse Call Relay Performance Test
Tools required:

Oscilloscope
1. Connect the nurse call cable to the multifunction output connector of the patient
monitor.
2. Enter Demo mode. Then, select [ Main Menu ] → [ Maintenance >> ] → [ User
Maintenance >> ] → enter the required password → [ Others >> ].
Monitor
Gas cylinder
Flowmeter
Reducing
valve T-shape connector
Sampling line