Dräger Perseus A500 Instructions For Use Manual page 207

Priority Alarm
! 255 N O measurement tempo-
2
rarily inaccurate
!!! 110 N O supply low
2
!!! 110 No Air delivery
! 100 No CO
2
!!! 200 No fresh-gas flow
!!! 110 No N O delivery
2
!!! 210 No O delivery
2
!!! 120 No ventilation
! 220 O cylinder almost empty
2
!!! 210 O cylinder empty
2
Instructions for use Perseus A500 SW 2.0n
Cause
The sensor has not yet
warmed up.
The ambient air used for cali-
brating the sensor was
impure.
Central supply pressure and
cylinder pressure are low.
Air is not available. Gas mixer
is using 100 % O
detected Ventilation was started, but
no exhaled CO
detected for more than 60
seconds.
No fresh-gas flow is set.
N
2
mixer is using O
O
2
is using Air instead.
An internal error occurred.
Ventilation has stopped.
The cylinder is almost empty. Replace the cylinder. Use the
The cylinder is empty or
closed.
instead.
2
was
2
O is not available. Gas
instead.
2
is not available. Gas mixer
Troubleshooting
Remedy
Wait for the automatic calibra-
tion.
Position the device in an envi-
ronment with clean ambient
air.
Wait for the automatic calibra-
tion.
Check central N O supply or
2
use cylinder.
Use "ALARM RESET" to
downgrade alarm priority.
Check central Air supply or
use cylinder.
Use "ALARM RESET" to
downgrade alarm priority.
Check patient condition.
Check sample line, water
trap, and patient-side filter.
Use "ALARM RESET" to
acknowledge alarm.
Open the flow control valves.
Use "ALARM RESET" to
downgrade alarm priority.
Check central N O supply or
2
use cylinder.
Use "ALARM RESET" to
downgrade alarm priority.
Check central O supply or
2
use cylinder.
Use "ALARM RESET" to
downgrade alarm priority.
Change the ventilation mode
to Man/Spon and ventilate the
patient manually, or change
back to automatic ventilation.
Check the upper alarm limit
for the airway pressure.
If the problem persists, call
DrägerService.
central supply.
Replace the cylinder. Use the
central supply.
Use "ALARM RESET" to
downgrade alarm priority.
207