Co Calibration - Mindray T1 Service Manual

5.2.4 CO Calibration
2
Tools required:

A steel gas cylinder with 5±0.03% CO

CO concentration 3% - 7%
2
a/c ≤ 0.01 (where a = absolute gas concentration accuracy, c = gas concentration)


balance gas N

T-shape connector

Tubing
Follow this procedure to perform a calibration:
1. Make sure that the sidestream or microstream CO
2. Check the airway for leaks.
3. Select [Main Menu]→ [Maintenance >>]→ [User Maintenance >>]→ enter the required password→ [Module
Maintenance>>]→[Maintain CO2 >>]→ [Calibrate CO2 >>].
4. In the [Calibrate CO2] menu, select [Zero].
5. After the zero calibration is finished successfully, connect the equipment as follows:
Valve
Gas cylinder
6. Open the valve to flow CO
7. In the [Calibrate CO2] menu, enter the CO
8. In the [Calibrate CO2] menu, the measured CO
becomes stable, select [Calibrate CO2] to calibrate the CO
If the calibration is completed successfully, the message [Calibration Completed!] is displayed in the [Calibrate CO2] menu. If
the calibration failed, the message "Calibration Failed!" is displayed. If the initial calibration fails, perform a second
calibration. If that attempt fails, contact Mindray Technical Support for assistance.
T1 Service Manual
, 21.0% O
2
2
Open to the air
T-shape connector
and make sure that there is flow sufficient to vent to atmosphere.
2
concentration in the [CO2] field.
2
and balance gas N (P/N 0075-00-0033-01), or a steel gas cylinder with:
2 2
module is warmed up.
2
Tubing
concentration is displayed. After the measured CO
2
module.
2
Monitor
concentration
2
5-3