BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-9
Accuracy Test
Tools required:
Gas cylinder with a certain standard gas (such as 6±0.05% CO2, Bal N
2
) or standard gas mixture. Gas
concentration should meet the following requirements: AA > 1.5%, CO
2
> 1.5%, N
2
O > 40%, O
2
> 40%,
of which 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.
Monitor
T-shape connector
Tubing
Relief valve
Flowmeter
Gas cylinder
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