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2. Remove the test lung and wait at least 30s and verify that an apnea alarm and Tube
disconnected alarm occurs.
3. Reconnect the test lung and verify that the apnea alarm disappears.
5.13.4.7 Continuous Airway Pressure Alarm Test
1. Connect a manual bag to the manual bag port.
2. Set the O2 flow to the minimum value.
3. Turn the APL valve control knob to adjust the APL valve to 30 cmH2O.
4. Adjust the ventilation switch to Manual.
5. Push the O2 flush button for approximately 20s. Verify that the Continuous Airway
Pressure alarm occurs.
6. Disconnect the breathing circuit and verify that the alarm disappears.
7. Reconnect the breathing circuit.
5.14 System Ventilation Performance Tests
5.14.1 Manual Mode Ventilation Test
1. Adjust the mechanical auto/manual switch to Manual. Perform operations on the screen to
switch the system to the manual mode.
2. Adjust the APL valve to 25 cmH2O. Push the O2 flush button to fill the breathing bag.
3. Set the flow to 1 L/min.
4. Squeeze the breathing bag once every 3s.
5. Verify the inflation and deflation of the test lung.
5. Verify that a PAW waveform and all numeric values appear on the screen during bag
compression.
7. Stop squeezing the breathing bag and adjust the APL valve to the open position (SP).
5.14.2 VCV Adult Ventilation Mode Test
1. Attach a breathing circuit and a manual bag.
For testing purposes, always use a reusable breathing circuit.
2. Attach an adult test lung to the Y-piece of the breathing circuit.
3. Connect a ventilation tester between the expiratory port and the breathing hose.
4. Set the O2 flow to 2 L/min and disable the N2O and air flows.
5. Adjust the auto/manual switch to Auto.
6. Set breathing parameters.
Parameter Setting
Patient Size Adult
Ventilation Mode VCV