(Model J) Page 123
17.12 O
2
System Calibration
Ensure that the ventilator has been turned on and connected to air for 1 hour
prior to carrying out the O
2
system calibration. Connect the oxygen supply. Press
start the O
2
System Calibration button. This takes about 6 minutes, the system
will indicate when calibration is finished.
17.13 Flow System Calibration
The flow system is a factory set system and requires an ETU-2.
Warning: Do not press this button if an ETU-2 is not connected.
17.14 Pressure Triggering Verification
Fit a patient circuit with a test lung. Check that the pressure trigger operates in
PTV mode with no flow sensor connected.
Check list Item 11.
17.15 Gas Fail Detection Verification
a) With the air and oxygen hoses connected to separately controllable pressure
sources
Set the ventilator to CMV
Gas inlet pressures to 4 Bar
BPM: 60
Insp Time: 0.5
PIP: 30 mbar
PEEP: 0 mbar
b) Ensure there are no current alarm conditions.
c) Disconnect the air supply and ensure that the “No Air Supply” alarm is
activated.
d) Reconnect the air and ensure that the “No Air Supply” alarm clears.
e) Disconnect oxygen supply and ensure that the “No O
2
Supply” alarm is
activated.
f) Disconnect air supply again. The “No Gas” audible / visual alarm should be
activated.
g) Reconnect the air and ensure that the “No Gas” alarm clears.
h) Reconnect the oxygen and ensure that the “No O
2
Supply” alarm clears.
Check list Item 12.
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