Dräger Perseus A500 Instructions For Use Manual page 170

Troubleshooting
Alarm Alarm
priority
!!! 200 External fresh-gas outlet
failure?
! 100 Filling level of vaporizer low The filling level of an inactive
!! 50 Filling level of vaporizer low The filling level of the active
!! 10 FiO high
2
!!! 255 FiO low
2
!! 135 FiO too high for neonates FiO
2
!! 30 Flow control valve still open At least one flow control valve
! 80 Flow sensor calibration
required
170
Cause
Failure when switching to
external fresh-gas outlet. Fail-
ure when switching from
external fresh-gas outlet to
another ventilation mode.
vaporizer is low.
vaporizer is low.
FiO has exceeded the upper
2
alarm limit.
FiO has fallen below the
2
lower alarm limit for: -at least
15 seconds (with respiratory
phases) -at least 30 seconds
(without respiratory phases)
has exceeded 50 % for
2
more than the configured
time.
is still open.
The flow sensors have not
been calibrated since the
device was powered on. The
last calibration of the flow
sensors was performed more
than 24 hours ago.
Instructions for use Perseus A500 SW 1.1n
Remedy
Use "O +" button to deter-
2
mine flow direction of fresh
gas:
-If internal breathing system
or breathing bag fill, external
fresh-gas outlet is not avail-
able.
-If gas flows out of the exter-
nal fresh-gas outlet, external
fresh-gas outlet can be used.
Internal breathing system can
only be used when the
breathing bag is not con-
nected (ventilation with ambi-
ent air only).
Check fresh-gas settings.
Call DrägerService.
Check filling level. Refill if
necessary.
Check filling level of vapor-
izer.
Use "ALARM RESET" to
downgrade alarm priority.
Check FG O .
2
Check O concentration and
2
fresh-gas settings.
Check the breathing system
for high leakages.
Check O supply.
2
Check O concentration and
2
fresh-gas settings.
Use "ALARM RESET" to
acknowledge alarm.
Close all flow control valves.
Perform the breathing sys-
tem test.