Dräger Julian - Page 122

Fault – Cause – Remedy
Message Cause Remedy
JULIAN COM 2 !
Communication via the RS 232 inter-
face COM 2 has been interrupted.
Check the plug connection on Julian and
the connected device.
MV < !!
Minute volume below the lower alarm
limit.
Check breathing system.
Check setting of ventilator.
Tube blocked/kinked. Check tube.
Leak in breathing system. Seal breathing system.
Ventilation volume reduced by pressure
limitation.
Correct ventilation pattern.
Inadequate fresh gas flow. Increase fresh gas flow.
MV > !!
Minute volume exceeds upper alarm
limit.
Correct tidal volume or respiration rate.
MIXED AGENT !
The anaesthetic gas has been
confused. Mixture of two anaesthetic
agent present.
Check fresh gas setting. Wait a while.
MIXER INOP !!!
Fault in the fresh gas mixer system.
Automatic switchover to MAN/SPONT.
A constant flow of 4 L/min O2 is
maintained.
Patient must immediately be
ventilated by hand!
Call DrägerService.
N2O INOP !
N2O gas measurement faulty. Call DrägerService.
N2O SUPPLY !!!
N2O supply has failed. Open the N2O backup cylinder.
The central supply connector is not
plugged in or the N2O hose is kinked.
Check connection to central supply.
Restore N2O supply.
N2O cylinder empty. Connect a full N2O cylinder.
NO FRESHGAS !!!
Fault on switching over to the external
fresh gas outlet.
Call Dräger Service.
O2 INOP !
O2 sensor worn or defective Replace O2 sensor, page 117
O2 SUPPLY !!!
The oxygen supply has failed. Open the O2 backup cylinder.
The central supply connector is not
plugged in or the O2 hose is kinked.
Check connection to central supply.
Restore O2 supply.
O2 cylinder empty. Connect a full O2 cylinder.
PAW > !!!
Airway pressure exceeds upper alarm
limit.
Check hose system.
Ventilation hose kinked.
Stenosis.
Pressure limit set too high. Correct pressure limit.
PAW NEGATIVE !!!
Inadequate supply of fresh gas. Set adequate fresh gas flow on the
anaesthetic unit.
Mean pressure pmean less than –2 mbar.
Airway pressure PAW less than
–7 mbar.
P MAX? !
PCV pressure limit not reached. Check stroke volume.
Correct pressure limit, inspiratory flow
or inspiration time if necessary.
POWER FAIL !
Power supply failure. Check battery capacity.
Prepare manual ventilation.
Short-circuit in one of the devices
connected to the auxiliary sockets.
Remove the device plug from the
auxiliary socket. Press the switch on the
back panel.
122
"Only for internal use by Draeger. Not applicable as Instructions for Use!"