Covidien Puritan Bennett 560 User Manual page 59

Table 3-2. Alarms and Corrective Actions (Continued)
Alarm Message or
Symptom
CHECK
EXH VALVE
CHECK EXH VALVE
PRESSURE
CHECK FIO SENSOR
2
CHECK PROXIMAL LINE1*
*IF PERSISTS
RESTART/SRVC
CHECK REMOTE ALARM
CHECK SETTINGS
CONNECT VALVE
OR CHANGE PRESS
CONTROLLED CYCLES
User's Manual
Possible Reason(s) For The Alarm Event
Obstruction or abnormal damage of the
exhalation valve.
Excessive moisture in the exhalation block.
Defective connection or defective
exhalation valve tubing.
Defective inspiratory flow sensor.
The exhalation valve may not be detected
by the ventilator when ventilation is started.
Or the exhalation valve may be falsely
detected when ventilation is started.
FIO measured is less than 18%.
2
No connection of the proximal pressure
tube when ventilation starts.
Proximal pressure line disconnected or
obstructed.
Defective proximal pressure sensor or
internal leak of the machine.
Nurse Call or remote alarm system is
disconnected.
Relay control voltage problem.
Loss of memorised parameters.
Software versions have changed.
The ventilation settings are not compatible
with the type of patient circuit used.
No exhalation valve connected with PEEP
set to less than 4 mbar
or
PIP set to more than 30 mbar when relative
pressure is set to OFF.
The ventilator is delivering apnea ventilation
at set back up rate.
Alarms and Troubleshooting
Corrective Action(s)
Clean or replace the exhalation valve and/or
its control tube.
Remove moisture from exhalation block and
valve.
Verify exhalation valve is seated properly.
Reduce temperature of the humidifier.
Reconnect the valve or replace the
exhalation valve and/or the exhalation valve
pilot pressure tube.
Have a qualified technician replace the
defective component(s) and call your
customer service representative.
Restart ventilator to see if alarm clears. If
not, replace the ventilator and call your
customer service representative.
Check that FIO sensor is properly
2
connected or
Recalibrate FIO sensor or
2
Replace FIO sensor.
2
Reconnect the proximal pressure line.
Reconnect the connection line or
replace it if obstructed.
Check for moisture or occlusion of the
proximal line.
Reduce humidifier temperature.
Switch to a heated wire circuit.
Restart ventilator to see if alarm clears. If
not, have a qualified technician replace the
defective component(s) and call your
customer service representative.
Connect the Nurse Call or remote alarm
cable to the ventilator.
Carefully monitor the patient to detect
possible alarm triggering and call for the
maintenance technician.
Check and adjust the prescribed
parameters, if necessary.
Check and adjust the prescribed
parameters, if necessary.
Connect exhalation valve
Decrease PIP to less than 30 mbar in
absolute pressure.
Increase PEEP to more than 3 mbar.
Note:
Always consult the clinician before
changing PEEP, FIO , pressure, volume or
2
Rate settings.
Check that the patient circuit is correctly
attached and the patient is correctly
ventilated.
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