
lower or higher than reading on ventilator O2 display respectively.
Return alarm levels to original settings.
11.9
Restore ventilator O2 sensor to correct location.
Remove test O2 analyser.
Refit canister.
12
Spirometer Calibration (every 6 months)
12.1
Check condition of external Spirometer cables and connections.
12.2
Disconnect fresh gas hose from anaesthesia machine Common Gas Outlet. Switch
Bag/Vent switch to 'Bag' and remove bag from bag arm.
Remove test lung from patient connector if fitted, or remove patient circuit. Ensure
scavenging circuit is not connected.
12.3
Check Spirometer is enabled in menu.
12.4
From menu select 'Oxygen Monitor & Spirometry'- 'Spiro Calibration'.
12.5
Rotate dial until '0 L/min' is displayed.
12.6
Press Navigator wheel to calibrate Spiro.
12.7
Display will flash 'Calibrating Zero'
12.8
If successful 'Calibration complete' will be displayed.
12.14 Reconnect fresh gas hose, patient circuit and manual bag and re-set bag/vent switch
to 'Vent' position.
13
Spontaneous Mode (every 6 months)
13.1
Select 'Spont Mode' on touch screen.
13.2
Check absorber is in vent mode.
13.3
Operate Test Lung (by hand)
Check 'Vt meas.', 'BPM' and 'I:E' readings at bottom of the display .
Observe waveform displayed.
13.4
Stop operation of test lung.
Ensure pressure reading falls to zero and after 15 sec delay check 'Apnoea' alarm
triggered and 'Vt meas.' shows '= = ='.
13.5
Press 'Mute' verify audible alarm is muted for 120 seconds.
(Note, alarm mute countdown is displayed at bottom right of touch screen.)
13.6
Switch absorber to bag mode, close APL valve. Inflate bag with O2 flush and repeat
tests 3 - 5 above using re-breathing bag.
13.7
Switch absorber to vent mode.
From the 'Special Modes' menu select SIMV.
SERVICE SCHEDULE
60
Summary of Contents for AV-S
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