GE Datex-Ohmeda Aisys Carestation, Справочное руководство

Страница: 490 / 498

Aisys
12-24 04/08 M1046983
12.8.6 Gas Delivery Subsystem
—
Perform Mixer Tests
Selecting Perform Mixer Tests brings up the following screen. This screen includes and
automatic and a manual leak test of the Mixer’s balance gas inlet check valves.
Automatic
The BalGas Check Valve Leak Test Auto does not require disassembly of the system. It
is a sensitive test that will Pass check valve that have leak rates within specifications;
however, it may Fail some Mixers with marginal but acceptable leak rates.
• Mixers that Pass the auto leak test do not require further testing and can be left in
service.
• Mixers that Fail the auto leak test should be further tested using the manual leak test.
Manual
The BalGas Check Valve Leak Test Manual requires disassembly of the system.
• Mixers that Pass the manual leak test have acceptable leak rates and can be left in
service.
• Mixers that Fail the manual leak test should be replaced.
Automatic leak test
1. Connect an O
2
supply.
2. Select Start Test to perform the BalGas Check Valve Leak Test Auto .
• If Pass, balance gas check valve leak rate is acceptable.
• If Fail, verify leak rate using the manual leak test.