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↓
O
concentration
2
↓
Airway pressure
↑
Airway pressure
↑
PEEP
EN
Troubleshooting
128
Alarm
Selected O
concentration too high,
e.g., during NIV
ventilation with mask
High priority
Sterile compressed air or
gas other than medical
oxygen connected as
gas supply
Device defective
Patient hose leaking/
slipped off
Tube wrongly
positioned
high priority
Hoses kinked
Inconsistent ventilation
setting
Airway obstruction
Tube wrongly
positioned
high priority
pMax set too low
Hoses kinked
Airway obstruction
Tube wrongly
positioned
high priority
Hoses kinked
Patient valve defective
Cause
2
Minimize leakage, select NIV
add-in.
Activate "Compressed gas
supply" function (see "Allow gas
type selection" on page 107) and
select the pressurized gas type
(see chapter 7.7 on page 91).
Have device repaired.
Replace patient hose/attach it
correctly
Check position of tube and
correct if necessary.
Check position of hoses and
correct if necessary.
Check the ventilation setting
(pInsp, ramp, T
necessary.
Check state of patient.
Position tube correctly
Correct pMax.
Check position of hoses and
correct if necessary.
Check the state of the patient.
Position tube correctly
Check position of hoses and
correct if necessary.
Check patient valve.
Rectification
) and correct if
i
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