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7. Trigger breaths by slightly squeezing the test lung and releasing. Maintain a continuous
breath rate.
8. Verify that a pressure waveform and all ventilation parameters appear on the screen.
9. Verify that the peak pressure read on the display is within ΔP + PEEP ±2.
10. Stop triggering breaths.
11. Verify that the ventilator delivers a breath and displays the "Apnea Ventilation" message
15 seconds later.
12. Verify that the system is ventilating at a frequency of 4 bpm.
4.14 State Test of Sensors
4.14.1 Checking the Sensor Zero Point
To check the sensor zero point, perform the following operations:
1. Turn off all fresh gases and position the Y piece in the patient circuit to the air.
2. Make sure that the system is standby.
3. Select [Main]> [nService]> [Data Monitors]> [Component]> [Zero Sensor] to access
the following menu.
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