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Mains Disconnect Mains power is disconnected or
has failed, or mains fuse has failed.
Device continues to operate on
battery power.
Light-up mains disconnect indicator
on front panel.
Non-latching LOW priority alarm.
Priority: LOW
Type: TECHNICAL
Connect mains power.
If mains power cannot be
restored, cancel alarm and
monitor battery level.
Battery Error Charging is ineffective, the battery
fuse has blown or the battery has
reached the end of life or otherwise
has become faulty.
Latching LOW priority alarm.
Priority: LOW
Type: TECHNICAL
Remove patient to an
alternative form of
ventilation. Remove the unit
from service.
O2 Calib. Error
Unable to reach normal O
2
cell
response during calibration.
Either the oxygen supply is not
connected, or the O
2
cell has
expired. Continued use of the
device is tolerated for a limited time
only, as accuracy of monitoring
cannot be relied on.
Non-latching LOW priority alarm.
Priority: LOW
Type: TECHNICAL
If running on air, cancel the
alarm. The unit should be
set to 21% oxygen. Trying
to set a higher percentage
will re-trigger the alarm.
If running on air and oxygen
try to manual recalibrate the
oxygen. If the alarm is re-
triggered, remove patient to
an alternative form of
ventilation. Remove the unit
from service.
Total power fail alarm
Total power fail. No mains supply
and battery exhausted.
Priority: HIGH
Type: Audible only
Restore mains power.
Reset the unit.
If unable to restore mains
power remove patient to an
alternative form of
ventilation. Remove the unit
from service.
Alarm message Description Action
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