Mindray BeneView T5, Service Manual

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3-9
5. Open the relief valve to vent standard CO
2
and make sure that there is an excess gas
flow through the T-shape connector to air..
6. Check the realtime CO
2
value is within 6.0 ± 0.3 ％ in the [ Calibrate CO
2
] menu.
Calibration
Tools required:
„ A steel gas cylinder with 6±0.05% CO
2
and balance gas N
2
„ T-shape connector
„ Tubing
Follow this procedure to perform a calibration:
1. Make sure that the sidestream or microstream CO
2
module has been warmed up or
started up.
2. Check the airway for leakage and perform a leakage test as well to make sure the airway
has no leakage.
3. Select [ Main Menu ] → [ Maintenance >> ] → [ User Maintenance >>] → enter the
required password → [ 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 to vent standard CO2 and make sure that there is an excess gas
flow through the T-shape connector to air.
7. In the [ Calibrate CO
2
] menu, enter the vented CO
2
concentration in the [ CO
2
] field.
8. In the [ Calibrate CO
2
] menu, the measured CO
2
concentration is displayed. After the
measured CO
2
concentration becomes stable, select [ Calibrate CO
2
] to calibrate the
CO
2
module.
If the calibration is finished successfully, the message [
Calibration Completed! ] is
displayed in the [ Calibrate CO
2
] menu. If the calibration failed, the message [ Calibration
Failed! ] is displayed. In this case, perform another calibration.
Monitor
Gas cylinder
Open to the air
Relief valve
Tubing
T-shape connector