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31.1.14 Flow Sensor Disconnect Alarm
Step 30. Disconnect
the flow sensor plug
from the ventilator an
audible / visual alarm
should be activated.
Press the Continue
without flow button.
31.1.15 Cycle Fail Alarm
Set the High alarm threshold to 30mbar
Set the Low alarm threshold to -5mbar
Step 31. Increase the
Cycle Fail alarm
threshold setting so
that the alarm cursor
line is above the peak
pressure wave on the
screen. This will initiate an audible and visual Cycle
Fail alarm.
Return the alarm setting to within the pressure
wave, the audible alarm should self cancel.
Press the reset button to clear the alarm
panel of the alarm notification.
Decrease the alarm setting so that alarm cursor line
is below pressure wave on the screen. This will
initiate an audible and visual Cycle Fail alarm.
Return alarm setting to within the pressure wave,
audible alarm should self cancel.
Press the reset button to clear the alarm
panel of the alarm notification.
Step 32. Reconnect
the flow sensor and
confirm the “Calibrate
Flow Sensor” alarm is
activated, replacing
the “Connect Flow
Sensor” alarm.
If the ventilator passes these tests recalibrate the
flow sensor, and then advance to Step 33.
Note: If functionally testing without the flow
sensor advance to Step 31.
Action: If the “Connect Flow Sensor” is not
triggered or cannot be cancelled perform the
following actions. After each action retest the
ventilator. If the ventilator successfully
passes this test after performing one of these
actions, go to Step 31.
• Replace the flow sensor cable
• Repeat calibration process with both ends
of flow sensor occluded
• Replace the flow sensor
If “Connect Flow Sensor Alarm” cannot be
cancelled remove the ventilator from service
and contact an SLE approved engineer.
Action: If the “Cycle Fail” alarm is not
triggered under alarm conditions perform the
following actions. After each action, retest the
ventilator. If the ventilator successfully
passes all these tests after performing one of
these actions, go to Step 33.
• Ensure the alarm threshold is set correctly.
• Check patient circuit is set up correctly as
shown in section 12. on page 58: Ventilator
Set-up. Pay close attention to proximal
airway, fresh gas connection and the
expiratory limb.
If the fault continues after checking all
possible causes remove the ventilator from
service and contact an SLE approved
engineer.
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