Section 3
Daily Checkout
R. The flow of oxygen must now exit through the relief ports
located on top of the canister. The absorber system’s
breathing pressure gauge must indicate a pressure less
than5cmH
2
O.
S. After the test, adjust the scavenger needle valve to a
flowmeter indication halfway between the two white lines.
To test the scavenger interface for passive systems:
A. Make sure a 19 mm scavenger hose is connected between
the ventilator relief valve and the scavenger interface.
B. Make sure a 19 mm scavenger hose is connected between
the APL valve on the absorber and the 19 mm hose
terminal on the back of the absorber pole.
C. Make sure a 19 mm scavenger hose is connected between
the bottom of the absorber pole and the scavenger
interface.
D. Check for moisture accumulation in the breathing and
scavenger hoses. Remove any moisture found.
E. Short circuit the absorber’s inspiratory and expiratory
valves with a 22 mm breathing hose.
F. Set the absorber’s manual/automatic selector valve to
AUTO.
G. If the system is equipped with a PEEP valve, turn the
PEEP valve control knob fully counterclockwise to its
lowest setting.
H. Open the oxygen flow control valve to a flow of 10 l/min
and occlude the 19 mm scavenger terminal labeled
EXHAUST.
I. After the ventilator bellows inflates, the flow of oxygen
exits the system through the positive pressure safety relief
valve. At this point, the absorber system’s breathing
pressure gauge must indicate a pressure of less than 10
cmH
2
O.
3-10
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