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216
Instructions for use
|
Atlan A300, A300 XL, A350, A350 XL SW 1.0n
Troubleshooting
!! 80
Minute volume low
The minute volume is below
the lower alarm limit.
Check patient condition.
Check ventilation settings.
Check tube or mask.
Check alarm limit.
Flow measurement is inaccu-
rate.
Replace the expiratory flow
sensor. Perform the leakage
test.
!
220
N
2
O cylinder almost empty The cylinder is almost empty. Replace the cylinder. Use the
central supply.
!
255
N
2
O cylinder empty
The cylinder is empty or
closed.
Replace the cylinder. Use the
central supply.
!
190
N
2
O cylinder sensor?
Cylinder pressure sensor is
not connected.
Check if cylinder pressure
sensor is connected.
Use "ALARM RESET" to
acknowledge alarm.
!! 150
N
2
O FG flow measurem.
failed
The measurement system for
the N
2
O fresh-gas flow has
failed.
Only use O
2
as fresh gas.
Use the total flow tube to
check the fresh-gas flow.
Adjust the fresh-gas flow so
that it equals or exceeds the
minute volume.
!
255
N
2
O measurement failed
There is electromagnetic
interference.
Check for electromagnetic
radiation in the vicinity.
There is an internal failure.
Use an alternative gas mea-
surement system.
If the problem persists, call
Dräger.
!
255
N
2
O measurement not
available
The ambient air used for cali-
brating the sensor was
impure.
Position the device in an
environment with clean ambi-
ent air.
Wait for the automatic cali-
bration.
There is electromagnetic
interference.
Check for electromagnetic
radiation in the vicinity.
Ambient temperature is too
high.
Check ambient conditions.
!
255
N
2
O measurement tempo-
rarily inaccurate
The sensor has not yet
warmed up.
Wait for the automatic cali-
bration.
The ambient air used for cali-
brating the sensor was
impure.
Position the device in an
environment with clean ambi-
ent air.
Wait for the automatic cali-
bration.
!!! 110
N
2
O supply low
Central supply pressure and
cylinder pressure are low.
Check central N
2
O supply or
use cylinder.
Use "ALARM RESET" to
downgrade alarm priority.
Priority
Alarm
Cause
Remedy