Co Leakage Test; Co Accuracy Test - Mindray T1 Service Manual

5.2.2 CO Leakage Test
2
Follow this procedure to perform the test:
1. Connect the CO
2
2. Wait until CO warmup is finished and then completely block the gas inlet of the module or watertrap. The sidestream
2
and microstream CO

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 does not disappear, 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.
5.2.3 CO Accuracy Test
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 the test:
1. Connect the CO
2
2. Wait until the CO
3. Select [Main Menu]→ [Maintenance >>]→[User Maintenance>>]→enter the required password→ [Module
Maintenance>>]→ [Maintain CO2 >>]→[Calibrate CO2>>].
4. Connect the test system as follows:
Valve
Gas cylinder
5. Open the valve to flow CO
6. Verify the realtime CO
5-2
module.
modules should have as follows:
2
, 21.0% O
2
2
module.
module warmup is finished. Check the airway for leak.
2
Open to the air
T-shape connector
and make sure that there is flow sufficient to vent to atmosphere.
2
value is within 5.0±0.3% in the [Calibrate CO2] menu.
2
and balance gas N (P/N 0075-00-0033-01), or a steel gas cylinder with:
2 2
Tubing
Monitor
T1 Service Manual