Dräger Fabius, Instructions For Use Manual, Page: 158 / 232

Fault-Cause-Remedy
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Instructions for Use Fabius MRI SW 3.n
Power Failure Backup
When AC power is interrupted from the
Fabius MRI, the internal battery backup will provide
full operation of the ventilator and internal monitors
for up to two hours after the power interruption. The
battery depletion rate depends upon ventilator set-
tings and the condition of the battery (age and level
of charge), but under no circumstances should a
fully charged battery provide less than 45 minutes
of full functionality.
The transition to battery-powered operation will not
interrupt any machine functions. At the transition,
and as the battery is discharged, the following infor-
mation will be displayed:
– The battery symbol (
) appears in the status
bar and the Mains Power LED turns off.
– The » POWER FAIL! « Advisory alarm message
is displayed in the alarm window.
– When the battery is discharged to 20 % of its
reserve power, the » BATTERY LOW! « Advi-
sory alarm message is displayed in the alarm
window.
– When the battery is discharged to 10 % of its
reserve power, the » BATTERY LOW!! « Cau-
tion alarm message replaces the Advisory
alarm message in the alarm window.
– When the battery is almost fully discharged, the
ventilator will stop and the Ventilator Fail Warn-
ing alarm message (»
VENTILATOR FAIL!!! «)
is displayed in the alarm window.
– If manual ventilation is not provided, the Apnea
Pressure Warning (» APNEA PRESSURE!!! «),
Apnea Flow Warning (» APNEA FLOW!!! «),
and Minute Volume Low Caution (» MINUTE
VOLUME LOW!! «) alarm messages are dis-
played in the alarm window.
– The internal monitors continue to operate until
the battery is completely discharged and all
electronics are shut down.
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