Dräger Julian, Operating Instructions Manual

Page: 124 / 148

* Advisories related to hardware errors (e.g. sensor failures) are announced without audible signal.
Troubleshooting
Operating Instructions Julian SW 3.n
124
Message Cause Remedy
% O
2
HIGH
!!
Inspiratory O
2
concentration exceeds
upper alarm limit.
O
2
flush used.
Check O
2
concentration in fresh gas
flow.
% O
2
ERR
!
* O
2
measurement defective. Call DrägerService.
O
2
sensor exhausted or defective. Replace O
2
sensor, see page 121.
O
2
sensor not used. Use O
2
sensor.
FRESH GAS ?
!
Fresh gas flow too low. Increase fresh gas flow.
Leakage in the breathing system or in
the patient hose. Check breathing system for leakages.
GAS FAILURE
!!!
Failure of O
2
and AIR supply. Open backup O
2
cylinder.
Check connection to supply pipeline.
INSP CO
2
HI
!!
Inspiratory CO
2
concentration exceeds
the upper alarm limits set.
Replace soda lime in absorber
system.
Valve discs in breathing system
defective.
Set sample rate to 200 mL/min due to
high frequency and time constant of
CO
2
sensor.
INSP MAC
>
!!
Upper alarm limit for inspiratory MAC
value has been exceeded. Check Vapor setting.
Check fresh gas setting.
JULIAN COM 2 ?
!
JULIAN COM 3 ?
!
* Communication via RS 232 interface
COM 2/COM 3 has been interrupted.
Check connector plugs on Julian and
the connected device.
MIN VOL HIGH
!!
Minute volume exceeds upper alarm
limit. Correct tidal volume or respiration rate.
MIN VOL LOW
!!
Minute volume below 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.
MIXED AGENT
!
The gas measuring system has
detected a mixture of more than two
anesthetic agents.
Flush system if necessary.
Check fresh gas setting.
NO SPO
2
PULS
!!!
No pulse signal detected by SpO
2
measurement for approx. 10 seconds.
Check patient's condition!