Datex-Ohmeda Aespire View, User'S Reference Manual

Page: 60 / 150

Aespire View
5-10
M1132382
WARNING Agent mixtures from the low-pressure leak test stay in the
system. Clear the system by flowing O2 at 1 l/min for one
minute.
8. Clear the system of agent.
• Set the System switch to On.
• Set the O2 flow to 1 l/min.
• Flow O2 for one minute.
• Turn the O2 flow control fully clockwise for minimum flow.
Positive low-
pressure leak test
1. Connect the test device to the ACGO port with the positive-
pressure leak test adapter.
Note Push the positive-pressure leak test adapter into the ACGO port
throughout the test to maintain a tight seal.
CAUTION Do a positive low-pressure leak test at the ACGO port
only.
2. Turn the ACGO switch to the ACGO position.
3. Turn all flow controls fully clockwise for minimum flow.
4. Turn all vaporizers off.
5. Fully open the needle valve on the test device.
Note Keep the test device flow tube vertical for accurate results.
CAUTION If the needle valve is not fully open, this test can damage
the pressure gauge on the test device.
6. Open the O2 flow control and set for a total flow on the test
device of 0.4 l/min.
7. Make sure that the pressure gauge on the test device is at zero,
and make sure that all other flow controls are fully closed.
8. Close the needle valve on the test device until the gauge reads
20 kPa (3 psi) for (BSI) or 3 kPa (.4 psi) for ISO.
9. If the flow through the test device is less than 0.35 l/min ISO or
0.3 l/min (BSI), there is a low pressure leak in the system. See
“Pneumatic problems” in the “Alarms and Troubleshooting”
section.
10. Test each vaporizer.
• Turn on the vaporizer being tested, and set it to 1%.
• Perform steps 5 through 9 of this test for each vaporizer.
11. Make sure all vaporizers are turned off.