Dräger Evita 2 Dura - Page 88

Fault – Cause – Remedy
88
!O2 supply pressure high O2 supply pressure too high.
O
2 supply pressure is not required when
FiO
2 = 21 Vol.%.
Make sure pressure is less than 6 bar.
!!! PEEP high Expiratory system obstructed. Check hose system and expiration valve.
Expiratory resistance is increasing. Check bacterial filter. Replace if
necessary.
Machine faulty. Call DrägerService.
!!! PEEP valve inop. Internal PEEP valve faulty. Call DrägerService.
! Pressure limited P
max pressure limit is active. Check condition of patient, check pattern
of ventilation, correct setting if necessary.
!!! Pressure meas. inop. Fluid in expiration valve. Replace expiration valve, page 92, then
clean and dry.
Pressure measurement malfunction. Call DrägerService.
!!! Standby activated Evita 2 dura has been switched to
standby.
Confirm standby with »Alarm Reset« key.
!!! Temperature high Breathing gas temperature higher than
40
o
C.
Switch off humidifier.
!!! Temperature meas. inop. Temperature sensor faulty. Fit new temperature sensor, see page 22.
!!! Temperature sensor ? Temperature sensor probe has been
disconnected during operation.
Reconnect probe.
Sensor cable broken. Fit new temperature sensor.
!!! Tidal volume high The upper alarm limit of the applied
inspiratory tidal volume V
T has been
exceeded during three consecutive
ventilation strokes.
Check condition of patient,check pattern
of ventilation, correct alarm limit if
necessary.
Leak or disconnection. Check that hose system connections are
leakproof.
! Tidal volume high The inspiratory tidal volume V
T has
exceeded the upper alarm limit.
Check condition of patient,check pattern
of ventilation, correct alarm limit if
necessary.
Leak or disconnection. Check that hose system connections are
leakproof.
!!! Tube blokked Evita 2 dura only applies a very small
volume with each mechanical stroke,
e.g. because the tube is blocked.
Check condition of patient, check tube.
Patient "fights" against the mechanical
strokes in pressure-controlled ventilation,
so that the set inspiratory pressure volume
is achieved with only a very small volume.
Check condition of patient, check
machine settings.
!! Volume not constant Due to pressure limit or time limit, the set
tidal volume V
T has not been applied.
Prolong inspiratory time »T
insp«
Increase inspiratory flow »Flow«
Increase pressure limit »P
max«.
Press the »Alarm Reset« key to suppress
the visual and acoustic alarm until the
cause of the alarm is remedied.
!!! CO
2 measurement inop CO2 sensor faulty. Replace defective CO2 sensor.
CO2 electronics in unit faulty. Call Dräger Service.
Message Cause Remedy