79
System Checks
4.14 Absorber Tests
If the machine is fi tted with an ACGO, ensure that the switch is set to
Absorber.
4.14.1 Expiratory Valve Leak Test
1. Remove all patient circuits from the Absorber.
2. Close the APL valve fully clockwise.
3. Set the Absorber bag/vent switch to bag.
4. Occlude the inspiratory outlet using the O
2
sensor plug.
5. Occlude the O
2
sensor port using the O
2
sensor.
6. Attach a breathing bag to the bag port or bag arm.
7. Attach a fl ow measuring device on the expiratory port.
Figure 31 - Expiratory Valve Test Setup