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2. Release the check valve at the high-pressure O2 inlet and verify that there is no gas output at
the high-pressure O2 inlet.
5.9.3 O2 Flush Test
1. Set the machine to ACGO mode.
2. Connect a flow meter to the ACGO port and configure the flow meter to STPD.
3. Verify that the O2 flush flow is between 35 to 50 L/min when pressing the O2 flush button.
5.9.4 Mechanical ACGO Function Test
1. Set the fresh gas flow to 1 L/min, the mode to VCV, and Patient Size to Adult. Retain
default values for other parameters. Connect the patient pipeline to the test lung. Run the
equipment for three to five cycles in normal ventilation mode.
2. Turn the ACGO switch to the ACGO mode and verify that "VCV" in the display area in
system ventilation mode is replaced with "ACGO".
3. Block the ACGO outlet (for example, with a leak test plug). The PAW waveform obviously
fluctuates on the screen.
4. Turn the ACGO switch to the non-ACGO mode and verify that the system switches to the
VCV mode and the ventilation is normal.
5. Set the fresh gas flow to 0.2 L/min.
6. Turn the ACGO switch to the ACGO mode and verify that the reading on the airway
pressure gauge increases to above 30 cmH2O within one minute.
5.9.5 Internal AG Module Test
1. Connect the O2 pipeline supply or open the backup O2 cylinder.
2. Connect the AGSS to the hospital's waste gas scavenging system.
3. Adjust the auto/manual switch to Manual and the APL valve to SP.
4. Connect a manual bag to the bag arm port.
5. Connect the Y-piece in the breathing circuit to the leak test port, and the other two ends to
the expiratory and inspiratory ports of the circuit.
6. Turn on the vaporizer and set the concentration to 1%.
7. Select Setup > Service > Data Monitors > AG to access the Data Monitors screen.
8. Check the pump rate of the internal AG module and verify that it is stable at 150±5 mL/min.
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