Alarm Functions of the Device
35
ALARM FUNCTIONS OF THE DEVICE
POWER FAILURE
If a power failure at night would go unnoticed as a
result the patient would breathe used air from the ther-
apy tube all night. To avoid this the device is equipped
with an alarm mechanism that warns you if power or a
fuse fail at night. You will be woken up with an acous-
tic signal so you can take the mask off your face and
breathe fresh air. The alarm is turned off by pushing
the ON/OFF key. After power supply is re-established
the motor starts automatically and the display will show
the following message:
Checking the power failure function
NOTE:
To check the power failure alarm, the device
must have been connected to the power cord
and turned on for at least half an hour.
Use the device with running blower and then pull the
power plug out of the wall socket. Now the acoustic
warning signal should sound. Check once a month if
the signal sounds long enough (reference value: at least
3 minutes). After pushing the control key or turning on
the power supply again the signal will stop.
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