E.Restore Ventilator Settings

Modify the ventilator settings and change the following value shown in Table 5.

Setting

Value

High Vte/High Vti

Off

3. Verify the Low Tidal Volume Alarm

This procedure verifies that the Low Tidal Volume alarm is working properly. For Passive and Active Flow circuits, this will verify the Low Vte alarm. For Active PAP circuits, this will verify the Low Vti alarm. It assumes that you have attached the test lung, verified the ventilator settings, and turned on ventilator power as described in the Initial Setup section.

A. Change Alarm Ventilator Setting

Modify the Low Tidal Volume alarm setting to match the one shown below in Table 6.

Setting

Value

Low Vte/Low Vti

500 ml

B. Verify the Alarm

Wait up to 40 seconds and verify the following alarm signals:

The High Priority audible indicator sounds

A red light flashes on the Alarm Indicator/Audio Pause button

The Low Tidal Volume alarm condition appears on the screen, highlighted in red

C.Modify Ventilator Alarm Settings

Modify the Low Tidal Volume alarm setting to match the one shown below in Table 7.

Setting

Value

Low Vte/Low Vti

50 ml

143

Table 5 - Restore Ventilator Settings

Table 6 - Low Vte/Low Vti Alarm Setting

Table 7 - Modify Low Vte/Low Vti Alarm Setting

Chapter 10 System Checkout Procedures

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Philips 200 Verify the Low Tidal Volume Alarm, Setting Value High Vte/High Vti Off, Setting Value Low Vte/Low Vti 500 ml