Maquet SERVO-i V3.1, User Manual, Page: 230 / 283

228
Servo
…
User´s manual
US edition
Order No: 66 00 261
10
Infant Adult Universal Options
O
2
concentration: Low Measured O
2
concentration is below
the set value by more than 6 Vol.%,
or concentration below 18 Vol.%
which is independent of operator
settings. Refer to page 177 for O
2
cell adaptation.
Gas delivered in O
2
supply line is not
O
2
. O
2
sensor faulty or exhausted.
O
2
cell uncalibrated. O
2
/oxygen gas
module faulty.
Check O
2
supply line. Perform a
Pre-use check.
Refer to page 177 for O
2
cell
adaptation.
Paw high
Caution: If airway
pressure rises 6 cmH
2
O
above set upper
pressure limit, the safety
valve opens.The safety
valve also opens if
system pressure
exceeds 117± 7 cmH
2
O.
Airway pressure exceeds preset
Upper pressure limit.
Kinked or blocked tubing. Mucus or
secretion plug in endotracheal tube
or in airways. Patient coughing or
fighting ventilator. Inspiratory flow
rate too high, Improper alarm
setting. Blocked expiratory filter.
Check patient and breathing
system.
Check ventilator settings and alarm
limits.
Restart ventilator! Software related error. Restart the ventilator and perform a
Pre-use check. If the problem still
remains, take the unit out of
operation and contact a service
technician.
Safety valve test failed During Pre-use check the system
found failures during the check of
the opening pressure for the safety
valve. Contact a service technician.
Settings lost; Restart
ventilator Software error, memory corrupt. Restart the ventilator and perform a
Pre-use check.
Check ventilator settings.
Technical error in
Expiratory cassette Technical problem with the
Expiratory cassette. Perform a Pre-use check. Change
the Expiratory cassette and perform
a Pre-use check. If the problem still
remains contact a service
technician.
Technical error: Restart
ventilator Ventilator settings lost. Restart the ventilator, perform a
Pre-use check and check all
settings. If the problem still remains
contact a service technician.
Time in waiting position
exceeds 2 min. Time in waiting position is exceeded.
Patient is not connected to the
ventilator or leakage is excessive. Check patient and breathing
system.
Problem
(Display message) Possible cause Remedy
High priority alarms