Dräger Evita 2 dura Instructions For Use Manual page 84

Fault – Cause – Remedy
Fault – Cause – Remedy
Alarm messages in the alarm display field are displayed in
hierarchical order.
If, for example, two faults are detected at the same time, the
more critical of the two is displayed.
The priority for alarm messages is marked by exclamation
marks:
Warning = Message with top priority
Caution = Message with medium priority
Advisory = Message with low priority
In the table below, the messages are listed in alphabetical
order. The table should help you identify the cause of any
alarm, and to ensure rapid remedy of the problem.
Message
!!! Air supply down
! Air supply down
!! Air supply pressure high
! Air supply pressure high
!!! Airway pressure high
!!! Airway pressure low
!!! Apnoea
! Apnoea alarm off
84
!!!
!!
!
Cause
Air supply pressure too low.
Air supply pressure too low.
Air supply pressure not required when
FiO = 100 Vol.%.
2
Air supply pressure too high.
Air supply pressure too high.
Air supply is not needed for
FiO = 100 Vol.%.
2
The upper alarm limit for the airway
pressure has been exceeded.
The patient is "fighting" the ventilator,
cough.
Ventilation hose buckled.
Leaking cuff.
Leak or disconnection.
Patient's spontaneous breathing has
stopped.
Stenosis
Flow sensor not calibrated or faulty.
Flow monitoring deactivated.
In NIV mode:
Apnoea monitoring has been deactivated. Re-set the upper alarm limit for apnoea
Remedy
Make sure pressure is greater than 3 bar.
Make sure pressure is greater than 3 bar.
Ensure pressure is less than 6 bar.
Ensure pressure is less than 6 bar.
Check patient condition, check ventilation
pattern, correct alarm limit if necessary.
Check hose system and tube.
Inflate cuff and perform leak test.
Check hose system for tight connections.
Check that the expiration valve is properly
engaged.
Apply controlled ventilation.
Check condition of patient. Check tube.
Calibrate flow sensor. Replace if
necessary.
Reactivate flow monitoring, page 69, or
ensure adequate external monitoring
immediately.
monitoring to the required value.
Note Instructions for Use of NIV mode.