Supplement
Fabius plus SW 3.n
29
Troubleshooting
Alarm – Cause – Remedy
The terminology for the O2 sensor has changed.
The causes and remedies for the following alarms have been
changed.
Alarm
priority
Alarm
Cause
Remedy
(8)
O
2
SENSOR FAIL !
The O
2
sensor was not cor-
rectly calibrated.
Perform the procedure for
calibration of the O
2
sensor
(see chapter on calibrating
the O
2
sensor).
O
2
sensor capsule replaced
and/or the O
2
sensor not cali-
brated.
Perform the procedure for
calibration of the O
2
sensor
(see chapter on calibrating
the O
2
sensor).
O
2
sensor capsule used up.
Replace O
2
sensor capsule
and calibrate.
O
2
sensor not connected.
Sensor cable faulty.
Connect the O
2
sensor
cable. Replace O
2
sensor
housing unit.
(6)
O
2
SENSOR CAL DUE !
More than 18 hours have
passed since the last O
2
sen-
sor calibration.
Perform the procedure for
calibration of the O
2
sensor
(see chapter on calibrating
the O
2
sensor).
Alarm
priority
Alarm
Cause
Remedy
(31)
INSP O
2
LOW !!!
Inspiratory O
2
concentration
is below the lower alarm limit.
Check O
2
supply. Check
the setting of the flow con-
trol valve and lower O
2
alarm limit.
Incorrect setting of the switch
on the external fresh-gas out-
let.
Check the setting of the
switch on the external
fresh-gas outlet.
(21)
FRESH GAS LOW !!
Insufficient fresh-gas supply
in all ventilation modes.
Ensure sufficient fresh-gas
supply.
Hose blocked/kinked.
Check hoses.
Leakage in the breathing sys-
tem.
Hose not connected to the
breathing system.
Check breathing system.
Incorrect setting of the switch
on the external fresh-gas out-
let.
Check the setting of the
switch on the external
fresh-gas outlet.