Mindray cPM 8 - CO Tests and Calibration

5-2
5.2.2 CO
2
Tests and Calibration
5.2.2.1 Leakage Test
1. Connect the CO
2
module with the patient module.
2. Wait until CO2 warmup is finished and then completely block the gas inlet of the module or watertrap. The
sidestream and microstream CO2 modules should have as follows:
 Sidestream: The alarm message [CO2 FilterLine Err] is displayed on the screen after a short time. Block the
gas inlet for another 30 s. If the alarm message still displays, it indicates that the module does not leak.
 Microstream: The alarm message [CO2 Purging] is displayed on the screen after a short time. Block the gas
inlet for another 30 s. If alarm message [CO2 FilterLine Err] is shown, it indicates that the module does not
leak.
5.2.2.2 Accuracy Test
Tools required:
 A steel gas cylinder with 5±0.03% CO
2
, 21.0% O
2
and balance gas N
2
(P/N 0075-00-0033-01), or a steel gas cylinder
with:
 CO
2
concentration 3% - 7%
 a/c ≤ 0.01 (where a = absolute gas concentration accuracy, c = gas concentration)
 T-shape connector
 Tubing
To perform the test
1. Connect the CO
2
module with the patient module.
2. Wait until the CO
2
module warmup is finished. Check the airway for leak.
3. Select [Main Menu]→ [Maintenance >>]→[User Maintenance>>]→enter the required password→ [Module
Maintenance>>]→ [Maintain CO2 >>]→[Calibrate CO2>>]..
4. Connect the test system as follows:
5. Open the valve to flow CO
2
and make sure that there is flow sufficient to vent to atmosphere.
Monitor
Cylinder
Flowmeter
Relief valve
T-shape connector
Sampling line