SLE SLE4000 Model B, Руководство по обслуживанию, Страница: 154 / 328

Page 154 (Model C)
21. Symptom: Monitor/display comms fail alarm. Alarm Message:
Monitor/display comms fail.
Possible Cause
Hardware fault in the monitor subsystem or fault in the monitor/CAN link.
Remedy
Check the CAN card ribbon cable.
Replace the control/monitor board.
22. Symptom: High Patient Leak alarm. Alarm message: High Patient
Leak
Possible Cause
Flow sensor just within specification.
Remedy
Replace flow sensor.
23. Symptom: Set PIP / PEEP pressure do not meet delivered pressures.
Possible Cause
Tolerance of 1 mbar.
Pressure transducers out of calibration.
Forward and mean jets out of calibration.
Remedy
Re-calibrate pressure transducers.
Re-calibrate forward and mean jets.
24. Symptom: Set O
2
% is not the same as displayed O
2
%.
Possible Cause
O
2
cell has aged.
O
2
system requires calibration.
Two point calibration carried out with blender set to a value higher than 21%.
Blender fault.
Remedy
Carry out a two point calibration with the blender set to 21%.
Measure the % O
2
from the fresh gas port. If the external analyser reading reads the same
as the set, replace O
2
cell.
Measure the % O
2
from the fresh gas port. If the external analyser reading differs from the
set, replace the blender.