Functional Tests Periodic Maintenance
3 - 16 046-001141-00 A5/A3â„¢ Service Manual
3.8.2 Check the AG Module Accuracy
Prepare the following before checking the AG module accuracy:
• Gas cylinder, with a certain standard gas or mixture gas. Gas concentration should meet the
following requirements: AA≥1.5%, CO2≥1.5%, N2O≥40%, O2≥40%, of which AA represents
an anesthetic agent. a/c≤0.01 (a is the gas absolute concentration accuracy; c is the gas
concentration).
• T-shape connector
• Tubing
Follow this procedure to perform checking:
1. Connect the test system as follows.
2. Ensure that the system is Standby mode. If not, select the Discharge button in the Manual
tab and follow the on-screen prompts to discharge the patient and enter Standby mode.
3. Select Setup softkey> System tab (system password needed).
4. Select the Calibration button.
5. Select the External AG Module button.
6. Wait for the AG module to be fully warmed up
7. Enter the actual concentration of the calibration gas.
8. Turn on the calibration gas canister and the system displays the real-time concentration of
calibration gas.
9. Verify gases are within tolerances below when compared to the compressed gas mixture
onthe gas cylinder label (allow the gas to flow for sixty seconds before taking the reading.)
N2O within 3%,CO2 = within 0.3%,O2 = within 2%,Desflurane within 0.2%.
10. Select Accept to close the Setup window.
Relief valve
Gas
Tubing
AG module
Open to the air
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