Functional Tests Installation Guide
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2.3 Functional Tests
Refer to Chapter 4.0 Calibration if any values are out of specification.
NOTE: The A7 system must be powered on (AC power, not battery) and the
Breathing System Warmer set to ON at least an hour before performing
the Ventilation Tests described in “VCV Adult Ventilation Mode Test” on
page 2-44.
2.3.1 Breathing System Leak Test
NOTE: Always perform a leak test after servicing the anesthesia machine,
replacing the components, or reconnecting the tubes.
2.3.1.1 Breathing System Leak Test in Mechanical Ventilation
Mode
This test checks the pneumatic circuit for leaks in mechanical ventilation mode. Test items include the
bellows, drive gas circuit, CO2 absorber canister, patient tubes, flow sensors, and flow sensor
connectors.
To perform the breathing system leak test in mechanical ventilation mode:
1. You can access the automatic circuit leak test screen after the Power-On Self Test has passed.
You can also open the Setup in Standby and select Test Leak/Compliance on the General menu
to access the automatic circuit leak test screen.The automatic circuit leak test screen is shown
below. Set up the machine as per the instructions on the screen. Then, select Continue to
execute automatic circuit leak test.
FIGURE 2-28 Automatic Circuit Leak and Compliance Test
The ongoing automatic circuit leak test is as shown below. You can select Cancel to cancel the
ongoing leak test.