GETINGE GROUP Maquet SERVO-s VENTILATOR SYSTEM V7.0 User Manual page 134

| 9 | System messages
Alarm Message
Leakage out of
range (A high
priority alarm when
NIV disconnect flow
is enabled). See
section Medium
priority alarms.
Limited battery
capacity
Low battery voltage
No battery capacity
No consistent
patient effort
No patient effort
O cell / sensor
2
failure
O concentration:
2
High
O concentration:
2
Low
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Possible causes
Leakage too high. The mask / prongs
may not be adjusted properly for the
patient or may be the wrong size.
Less than 10 minutes left of battery
operating time.
Battery voltage too low. Cannot
guarantee continued ventilator operation.
Less than 3 minutes left of battery
operation.
The ventilator has switched between
supported and backup ventilation four
times in two minutes.
The patient has only triggered a single
breath to interrupt each of two
consecutive backup periods
An apnea has caused the ventilator to
switch to backup ventilation.
O cell / sensor missing or disconnected.
2
Measured O concentration exceeds the
2
set value by more than 5 Vol.%.
Gas supply or air line disconnected.
No supply from wall outlet.
The air gas module is disconnected.
If no gas is available, then both expiratory
and safety valves will open.
Measured O concentration is below the
2
set value by more than 5 Vol.% or
concentration is below 18 Vol.% which
is independent of operator settings.
Gas delivered in O
2
O sensor faulty or exhausted.
2
O cell uncalibrated.
2
O /oxygen gas module faulty.
2
supply line is not O .
2
Remedies
Check patient and breathing system.
Check mask/ prongs size and patient fit.
Connect to AC power.
If possible, connect to AC power supply.
Replace and discard all batteries if this
message appears even when batteries
are fully charged.
Connect to AC power.
Check patient and breathing system.
Check ventilator settings.
Check patient and breathing system.
Check ventilator settings.
Check O cell / sensor and connection.
2
Check air supply.
Perform a Pre-use check.
Perform O cell adaptation.
2
Check O supply line.
2
Perform a Pre-use check.
Perform O cell adaptation.
2
SERVO-s VENTILATOR SYSTEM V7.0, User's Manual