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4.9 Vaporizer Test
4.9.1 Vaporizer Interlock Test
1. Attach two vaporizers to the vaporizer manifold and lock them in place.
2. Rotate one vaporizer dial to 3%.
3. Verify that the other vaporizer dial is disabled.
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 T and remove both vaporizers.
8. Verify that the locking spring is in good condition.
9. Reconnect both vaporizers to the vaporizer manifold.
4.9.2 Vaporizer Back Pressure Test
WARNING
Use only the Selectatec series vaporizers. Make sure that the vaporizers are locked
when doing the test.
During the test, the anesthetic agent comes out of the fresh gas outlet. Use a safe
and approved procedure to remove and collect the agent.
To prevent damage, turn the flow controls fully clockwise (minimum flow or OFF)
before using the system.
Before the test, make sure that the vaporizers are correctly installed.
1. Connect the O2 pipeline supply or open the O2 cylinder valve.
2. Turn the O2 flow control and set the O2 flow to 6 L/min.
3. Make sure that the O2 flow stays constant.
4. Adjust the vaporizer concentration from 0 to 1%. Make sure that the O2 flow must not
decrease more than 1 L/min through the full range. Otherwise, install a different
vaporizer and try this step again. If the problem persists, the malfunction is in the
anesthesia system. Do not use this system.
5. Test each vaporizer as per the steps above.
NOTE
Do not perform test on the vaporizer when the concentration control is between
“OFF” and the first graduation above “0” (zero) as the amount of anesthetic drug
outputted is very small within this range.
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