(Model K) Page 99
g) With the fresh gas valve SV7 de-
energised (ventilator turned off),
ensure the flow at the fresh gas port is
at least 1.2LPM (typ. 1.8LPM).
Check list Item 6.
h) Monitor the flow from the proximal
airway pressure port using a precision
flow meter and adjust regulator PR7
(approx. 12PSI) to achieve a flow at
this port of 0.2LPM ± 0.05LPM.
Check list Item 7.
i) Turn on the ventilator and connect the
block and leak Y piece assembly.
Occlude the variable restrictor.
Ensure that the fresh gas pressure
relief valve is activated at greater than
140 mbar and no more than 170
mbar.
Check list Item 8.
j) Verify the flow past the oxygen cell is at least 3 lpm and not greater than 5
lpm.(Test point 4)
Check list Item 9.
k) Check that the sum of the exhaust oxygen from the relief ports on the oxygen
regulator is no greater than 3 lpm (Test point 5 & 6).
l) Connect a patient circuit. Occlude the expiratory limb with SV7 de-energised
(ventilator turned off) and ensure that the pressure measured at the calibration
analyser from the ET manifold is between 10 and 20 mbar.
Check list Item 10.
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