5-11
Test Sample Test Flow Set Concentration (%) Acceptance Criterion (%)
Desflurane 2 L/min
5.8 Mechanical Vaporizer Test (A8 only)
5.8.1 Vaporizer Interlock Test
1. Connect two vaporizers to the vaporizer manifold and lock them in proper places.
2. Rotate either of the vaporizer dial to 3%.
3. Verify that the other vaporizer dial cannot be rotated.
4. Set both vaporizer dials to 0.
5. Rotate the other vaporizer dial to 3%.
6. Verify that the first vaporizer dial cannot be rotated.
7. Rotate both vaporizer dials to 0 or T and remove both vaporizers.
8. Verify that the locking spring is intact.
9. Reconnect both vaporizers to the vaporizer manifold.
5.8.2 Vaporizer Back Pressure Test
1. Connect the O2 pipeline supply or turn on the O2 cylinder valve.
2. Adjust the auto/manual switch to Manual and the APL valve to SP.
3. Connect the Y-piece in the breathing circuit to the leak test port, and the other two ends to
the expiratory and inspiratory ports of the circuit. Connect a manual bag to the bag arm port
4. Open the Backup AIR/O2 door to let the machine enter the BFCS work mode.
5. Set the O2 flow to 6 L/min.
6. Verify that the O2 flow stays constant.
7. Adjust the vaporizer concentration from 0 to 1%. Verify that the O2 flow does not decrease
more than 1 L/min through the full range. Otherwise, repeat this step on another vaporizer.
If the problem persists, the anesthesia system malfunctions. Do not use this system.
8. Test each vaporizer according to the steps above.
Do not perform this test on the vaporizer when the concentration control is
between "OFF" and the first graduation above "0" as the output amount of
anesthetic agent is very small within this range.
5.8.3 Vaporizer Accuracy Test
1. Connect the sampling tee of the Calibrated Gas Analyzer to the ACGO port.
2. Use a breathing hose to connect the output of the sampling tee to the scavenger.
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