Datex-Ohmeda 2 Vap. Trolley, Operation Manual, Page: 91 / 104

Appendix - Preoperative Tests
1006-0938-000
A-15
w
C C
C CA
A
A AU
U
U UTTTTIIIIO
O
O ON
N
N N
If the needle valve is not fully open, this test can damage the
pressure gauge on the test device.
5. Open the Air or N
2
O flow control and set a total flow of 0.4 L/min through
the flowmeter on the test device.
6. Make sure that the pressure gauge on the test device reads zero and that
all other flow controls are fully closed.
7. Close the needle valve on the test device until the test gauge reads:
8. 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 anesthesia machine.
Refer to the Setup, Maintenance and Troubleshooting Manual.
9. Repeat this low-pressure leak test for each vaporizer:
•Set the applicable vaporizer to 1% and do steps 2 through 8.
•Fully open the needle valve on the test device to decrease the back
pressure.
•Turn the vaporizer off.
w
W W W WA A A AR R R RN N N NIIIIN N N NG G G GS S S S Agent mixtures from the low-pressure leak test stay in the system.
Always flush the system with O
2
after the low-pressure leak test
(1 L/min for one minute).
Turn all vaporizers Off at the end of the low-pressure leak test.
10. Remove all condensate from the breathing circuit module.
11. Assemble the breathing system.
12. Flush the system with O
2
:
•Turn the system On.
•Set the O
2
flow to 1 L/min.
•Continue the O
2
flow for one minute.
•Turn the O
2
flow control fully clockwise (minimum flow).
•Set the system switch to Standby.
BSI 20 kPa
ISO 5358 3 kPa