A7™ Service Manual 046-006272-00 3 - 13
Periodic Maintenance Functional Tests
The following screen is displayed if the compliance test is failed. You can select Accept to enter
Standby mode.You can select Retry to perform automatic circuit leak test again.
FIGURE 3-12 Compliance Test: Fail
The following screen is displayed if the automatic circuit leak test is completed. Select Continue to
enter Standby mode.
FIGURE 3-13 Automatic Circuit Leak Test Completed
NOTE: If the leak test fails, check all of the possible leak sources, including the
bellows, breathing system tubes, and CO2 absorber canister. Check that
they are correctly connected and their connectors are not damaged.
NOTE: If there is a leak, check the pneumatic circuit system for leakage and
troubleshoot the problems as described in 5.3.4 Breathing System.
After the leak has been resolved, repeat the leak test.
3.8.1.2 Breathing System Leak Test in Manual Ventilation Mode
This test checks the pneumatic circuit for leaks in manual ventilation mode. Test items include the
APL valve, check valve, CO2 absorber canister, patient tubes, flow sensors, and flow sensor
connectors.
To perform the breathing system leak test in manual ventilation mode:
1. You can access the manual circuit leak test screen after the automatic circuit leak test has
passed. The manual circuit leak test screen is shown below
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