3-8
Accuracy Test
Tools required:
A steel gas cylinder with 6±0.05% CO
2
and balance gas N
2
T-shape connector
Tubing
Flowmeter
Follow this procedure to perform the test:
1. Plug the module into the module rack.
2. Wait until the CO
2
module warmup is finished, and check the airway for leakage and
perform a leakage test as well to make sure the airway has no leakage.
3. Enter [User Maintenance]→ [Maintain CO
2
>>]→ [Calibrate CO
2
>>].
4. Connect the test system as follows:
5. Open the relief valve, and adjust it until the flowmeter has a stable reading between 10
ml/min and 50ml/min.
6. Check the realtime CO
2
value is within 6±0.05％ in the [Calibrate CO
2
] menu.
Monitor
Gas cylinder
Flowmeter
Relief valve
Tubing
T shape connector
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