BeneVision N22/BeneVision N19 Patient Monitor Service Manual 3-9
AA represents an anesthetic agent. Precision requirement: a/c ≤ 0.01 (a is the gas absolute concentration
accuracy; c is the gas concentration)
T-shape connector
Tubing
Flowmeter
1. Plug the AG module into the module rack.
2. Wait at least 10 min and then perform a leakage test to make sure that the airway has no leakage.
3. Connect the test system as follows:
4. Open the relief valve, and adjust it until the flowmeter has a stable reading between 10 ml/min and 50 ml/min.
5. Verify that the concentration of each composition meets the specification stated in the Operator's Manual.
Calibration
Tools required:
A supply of medical grade 100% O2 and an anesthetic calibration gas (4% Desflurane, 6% CO2, 45% N2O, Bal O2,
P/N: 0075-00-0048-01 and flow regulator P/N: 0119-00-0235). 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 a calibration:
1. Select Main Menu → Maintenance → enter the required password → Module → AG.
2. Check the airway and make sure that there are no occlusions or leaks.
Monitor
T-shape connector
Tubing
Relief valve
Flowmeter
Gas cylinder
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