4-59
4.5 Zero the Airway Pressure Gauge
Stop manual or mechanical ventilation. Allow the breathing tube patient connection to open
to the air. The airway pressure nears zero. If the pointer of airway pressure gauge fails to go
to zero, the airway pressure gauge will indicate incorrect pressure. In this case, you need to
zero the airway pressure gauge as follows
1. Stop manual or mechanical ventilation. Connect a breathing tube to the breathing circuit
and let the breathing tube patient connection open to the air. Make sure that the folding
bag fully collapses.
2. Remove the lens by digging out the lens buckle using a flathead screwdriver.
3. Adjust the zeroing screw using a small cross screwdriver to let the pressure gauge
pointer go to zero.
To Next Page
Loading...
