Dräger Cato - Page 77

77
Messages, cause and remedy
Messages on the monitor
Messages on the monitor
Messages Cause Remedy
PRESSURE LTD !!, (!) Ventilator operating with pressure limitation.
Change in lung compliance? Tube kinked?
Microbial filter in inspiratory line soiled?
Check tube/filter.
Increase Pmax or decrease VT if
necessary.
If pressure-limited ventilation is
intentional:
Press softkey »Config«, select
»Alarms« and switch »Pmax«
»off«.
RS232COM ERR ! RS 232 communication interrupted. Check plug connection.
SPEAKER FAIL ! No alarm sound, loudspeaker defective. Call DrägerService.
SPO2 ERR ! SpO2 measurement faulty. Call DrägerService.
SPO2 HIGH !! Oxygen saturation exceeds set upper alarm limit. Check O2 concentration in fresh
gas.
Check ventilator.
SPO2 LOW !!! Oxygen saturation is below the set lower alarm
limit.
Check O2 concentration of
fresh gas.
Check ventilation.
SPO2 OFF ( _ ) ! SpO2 alarm deactivated.
SPO2 PULS LO !!! Pulse rate has dropped below the set alarm limit. Check patient's condition!
SPO2 PULSE HI !! Pulse rate exceeds upper alarm limit. Check patient's condition!
Correct alarm limit if necessary.
SPO2SEN DISC ! No pulse detected by pulsoxymeter although heart
is clearly beating.
Check patient's condition
(disturbed circulation?).
Check SpO2 sensor positioned
correctly.
VENT ERR !!! Fault in ventilator pressure sensor.
Filter in pressure measuring hose blocked (water
absorption!)
Control pressure in ventilator too low.
Hardware fault in ventilator.
Machine not operational!
Patient must immediately be
ventilated by hand!
If no pressure build-up in the
breathing system: immediately
ventilate the patient with the
separate emergency breathing
bag.
Check pressure gas supply.
Replace filter in pressure
measuring hose. If not possible:
Switch off machine,
call DrägerService.
VOL ERR ! Flow sensor calibrated incorrectly?
Flow sensor / flow sensor lead defective? Flow
sensor not plugged in? Flow sensor soiled?
Calibrate sensor.
Replace lead / sensor and
calibrate sensor.
Plug in sensor connector.
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