
Message
Priority
Cause
Action
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.
Check TV settings.
EtCO2 low
Medium
EtCO2 is less than alarm limit.
Ensure that patient is properly
intubated. Check for leaks or blockages
in the patient circuit.
Check TV settings.
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.
EtSev high
Medium
EtSev 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.
EtSev low
Low
EtSev is less than alarm limit.
Check the fill level of the vaporizers. Set
alarm limit appropriately. Check agent
setting.
FiCO2 high.
Absorbent OK?
High
FiCO2 is greater than alarm limit.
Check if absorbent needs to be
changed.
FiDes high
Medium
FiDes 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.
7 Alarms and troubleshooting
2076152-001
7-7
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