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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.
Summary of Contents for WATO EX-55
Page 1: ...WATO EX 55 65 Anesthesia Machine Service Manual ...
Page 2: ......
Page 4: ...II FOR YOUR NOTES ...
Page 6: ...IV FOR YOUR NOTES ...
Page 12: ...6 FOR YOUR NOTES ...
Page 58: ...3 22 FOR YOUR NOTES ...
Page 242: ...6 54 6 4 1 Electrical Connections Electrical Circuit Diagram ...
Page 260: ...6 72 FOR YOUR NOTES ...
Page 261: ...7 1 7 Parts 7 1 Main Unit 7 1 1 Main Unit 7 1 1 1 Exploded View ...
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Page 322: ...P N 0621 20 78654 1 1 ...