Message Priority Cause Action
Circuit leak
silenced
Low Setting on Alarm Setup menu. Vent
TVexp is less than 50% of vent TVinsp
for at least 30 seconds and Leak Audio
is changed from On to Off.
Check the patient. Make sure Leak
Audio Off is the appropriate setting for
the case. Check for leaks in the patient
circuit. Calibrate flow sensors. If
problem persists, replace flow sensors.
Circuitry > 75C.
Shutdown
possible.
Medium Power supply temperature exceeds 75
degrees C.
Shut down system as soon as possible.
Then, check cooling fans and filters.
Cooling fan
needs service.
System OK.
Medium Fan reporting error. Shut down system as soon as possible.
Then, check cooling fans and filters.
Cooling fans
failed. May
overheat.
Medium Fan reporting error. May also be
caused by a display unit or CPU
temperature sensor reporting error.
Shut down system as soon as possible.
Then, check cooling fans and filters.
Display panel
controls failure
Medium Communication lost between panel
and key pad.
Turn the system off and back on.
EtCO2 high High EtCO2 is greater than high alarm limit. Check the patient and EtCO2 settings.
Check if absorbent needs to be
changed.
EtCO2 low Medium EtCO2 is less than alarm limit. Ensure that patient is properly
intubated. Check for leaks or blockages
in the patient circuit.
EtDes high Medium EtDes is greater than alarm limit. The
alarm priority escalates to High if the
alarm is not resolved after 2 minutes.
Set the alarm limits appropriately.
Check agent setting.
EtDes low Low EtDes is less than alarm limit. Check the fill level of the vaporizers. Set
alarm limit appropriately. Check agent
setting.
EtEnf high Medium EtEnf is greater than alarm limit. The
alarm priority escalates to High if the
alarm is not resolved after 2 minutes.
Set the alarm limits appropriately.
Check agent setting.
EtEnf low Low EtEnf is less than alarm limit. Check the fill level of the vaporizers. Set
alarm limit appropriately. Check agent
setting.
EtHal high Medium EtHal is greater than alarm limit. The
alarm priority escalates to High if the
alarm is not resolved after 2 minutes.
Set the alarm limits appropriately.
Check agent setting.
EtHal low Low EtHal is less than alarm limit. Check the fill level of the vaporizers. Set
alarm limit appropriately. Check agent
setting.
EtIso high Medium EtIso is greater than alarm limit. The
alarm priority escalates to High if the
alarm is not resolved after 2 minutes.
Set the alarm limits appropriately.
Check agent setting.
EtIso low Low EtIso is less than alarm limit. Check the fill level of the vaporizers. Set
alarm limit appropriately. Check agent
setting.
EtO2 high Medium EtO2 is greater than the high alarm
limit.
Check the O2 concentration.
EtO2 low Medium EtO2 is less than the low alarm limit. Check the O2 concentration.
7 Alarms and troubleshooting
2067226-001 7-7