Dräger Cato Instructions For Use Manual page 75

Messages on the monitor
Messages
APNOEA PRES !!!
APNOEA VOL !!!
AW-TEMP HIGH !!!
CO2 ERR !
CO2 LINE BLK !
_
CO2 OFF ( ) !
COM VENT ERR !!!
COOLING 8050 ? !
ET CO2 HIGH !!
Cause
Ventilation at a standstill.
No change of pressure detected for 15 seconds;
30 seconds in the case of SIMV alarm limits.
Inadequate supply of fresh gas.
Leak in hose system.
Ventilation at a standstill. No expiratory tidal volume
for 15 seconds; 30 seconds in the case of SIMV
alarm limits.
Inadequate supply of fresh gas.
Tube kinked. Leak in hose system.
Inspiratory breathing gas temperature over 40 °C.
Sidestream measurement is faulty.
Sample line blocked.
CO alarm deactivated.
2
Communication between ventilator and monitor
interrupted or faulty.
Temperature inside machine too high.
Upper alarm limit for end-expiratory CO
concentration has been exceeded for at least two
breaths.
Messages, cause and remedy
Messages on the monitor
Remedy
Patient must immediately be
ventilated by hand!
Check fresh gas setting on
anaesthetic unit.
Check hoses and tube.
Check ventilator.
Patient must immediately be
ventilated by hand!
Check ventilator.
Check fresh gas setting on
anaesthetic unit.
Check tube and hose system.
Disconnect breathing gas
humidifier. Set lower heating
level when temperature has
dropped to 37 °C.
Call DrägerService.
Replace sample line and water
trap if necessary.
Check sample line is not kinked.
Examine measuring gas return
line for stenosis, replace
microbial filter if necessary.
Alarm limits do not change over
automatically. Set alarm limits by
hand if necessary.
Call DrägerService.
Valve discs in the breathing
system defective.
Set the sampling rate to
200 mL/min due to the high
frequency and time constant of
the CO sensor.
2
Clean filter at rear.
Call DrägerService.
Check ventilation.
2
75