Penlon AV-S, Service Manual, Page: 64 / 94

Use an inflation bulb to apply pressure to the drive gas connector.
Pressure should relieve at 100 cmH2O ± 10%
7.3 Replace diaphragm valve and Non-return valve (every 12 months)
7.4 Replace 5 mm, 7 mm, and 12 mm probe O-rings (every 12 months)
7.5 Remove the 5mm hexagonal fitting at the rear of the control unit.
Replace Gas Supply Filter. (every 12 months)
7.6 Leak test gas inlet to unit On/Off -valve.
Ensure less than 7 kPa/min
7.7 With patient valve still removed, connect ventilator to power supply.
Reconnect gas supply.
Switch on the unit.
In 'Standby Mode', set inspiratory flow of 5l/min using front panel settings: 500, 5, 1:1,
OFF, 38.
Switch ventilator to 'Volume Mode'
7.8 Connect test gauge to primary regulator test point.
Check regulator set to /- 21 kPa (38 psi +/- 3 psi) during inspiratory phase.
If adjustment is necessary unit cover will need to be removed.
7.9 Connect manometer to output of patient proportional valve (small probe) .
Check for 90 cmH2O +/- 10% during the inspiratory phase and zero during the
expiratory phase.
Adjust secondary regulator as necessary
7.10 During expiratory phase ensure that there is no gas flow from the Drive Gas connector.
If necessary carry out Drive Gas Valve Offset calibration.
8 Control Unit (every 6 months)
8.1 From 'Diagnosis Menu' check supply voltages and battery current as follows, with the
mains lead connected:
'V IN' = 1096 mV±10% (mV x 13 = input voltage)
'V SUPP' = 1060 mV±10% (mV x 13 = input voltage)
'I BATT' 0 - 450 mV (mV x 1.333 = mA)
8.2 Check all electrical connections and components for security. (every 12 months)
8.3 Replace back up battery. (every 2 years)
8.4 Replace Real Time battery. (every 4 years)
9 Set Up (every 6 months)
9.1 Select drive hose 02 or Air.
Attach to the 'Driving Gas Input' connection to the rear panel.
9.2 Connect the long corrugated hose to the 'Drive Gas Output' connector of vent and the
vent drive gas connector at rear of absorber.
SERVICE SCHEDULE
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