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Fault / Message
Main power down
Alarm indicator flashes,
intermittent tone sounds.
NiCd discharged
Alarm indicator flashes,
intermittent tone sounds,
ventilation ceases.
No NiCd charge
This message only appears in
standby mode.
No NiCd or bat.
Paw high
Alarm indicator flashes,
intermittent tone sounds.
The minute volume cannot
be fully applied.
Single beep
Paw low
Alarm indicator flashes,
intermittent tone sounds.
Cause
Plug connection to external power
supply does not make contact.
Power supply unit or DC/DC
converter defective.
NiCd battery pack flat, no external
power supply
NiCd battery pack not fitted or
alkaline manganese battery pack
fitted or ambient temperature when
charging the internal NiCd battery
pack is outside the range 0 to 35 °C
or internal fuse defective.
Ventilator connected to external
power supply, internal power supply
not available.
Stenosis in the airways. Ventilation
hose kinked. Reduced lung
compliance. The inspiratory flow
resulting from the setting for V
Freq. and T
: T
is too high.
I
E
Patient "fights" the machine.
80 mbar set – for cardio-pulmonary
resuscitation.
Disconnection / leakage in patient
connection, breathing valve or
ventilation hose.
Diaphragm wrongly fitted in breathing
valve or damaged.
Breathing valve cover damaged/worn
Leak in cuff.
Faultt – Cause – Remedy
Remedy
Check plug connection or replace
power supply unit or DC/DC
converter.
g
Press »
Reset« to confirm.
Ventilator continues operation with
internal power supply.
Replace NiCd battery pack or
connect power supply.
Charge NiCd battery pack at ambient
temperatures between 0 and 35 °C.
Fit fully charged NiCd or new alkaline
manganese battery pack.
Clear airways.
Ensure ventilation hose is not kinked.
Set higher Pmax value. Set a longer
,
inspiration time (smaller flow) with the
T
T
: T
knob.
I
E
Change ventilation pattern or
ventilation mode. Sedate patient if
necessary.
No remedy required.
Ensure connections are tight.
Fit diaphragm correctly or replace it.
Replace breathing valve.
Inflate cuff and check for leaks.
35
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