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82 Alarms and error messages
FIXED ALARMS FOR POWER SUPPLY
Error message Priority Cause Remedy
Error Backup
Battery
HIGH
Battery block
voltage too low
Device must be serviced
Internal Battery
empty
HIGH
Battery empty
Battery must be charged; 1 min-
ute until the power supply fails
completely; ventilation only pos-
sible with external power supply
Error internal
Battery MEDIUM Battery defec-
tive
Device must be serviced
Internal Battery
low
MEDIUM Battery capacity
 10 %
Battery must be charged
Charging of
Battery not
possible
LOW
Temperature
outside speci-
fi ed limits during
charging
(0 °C ... + 50 °C)
Device must be warmed up or
cooled down
Hardware error Device must be serviced
FURTHER MESSAGES
Message Priority Cause
Battery Operation
---
Device was removed from the mains and
is now running on internal battery; con
fi rm
the message by pressing the alarm button
Safety Mode active
---
Patient not breathing spontaneously; mini-
mum frequency safeguard via the device;
only in PSV and ST mode
Switch OFF Ventilation?
Yes / No
HIGH
ON/OFF button was pressed or main
switch was activated during ventilation,
alarm sound is active; to end ventilation,
the query must be answered with “Yes”
ATTENTION!
Main Switch OFF
--- Main switch was activated during run-
ning ventilation; query whether ventilation
should be switched off was con
fi rmed with
no; message remains until main switch is
switched on again
Table 13: Fixed alarms for power supply
Table 14: Further messages