Patient Monitor User Manual Alarm Information
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Message Cause Alarm Level Action Taken
AG Agent Mixture
Mixture agents are detected,
but the monitor cannot
calculate MAC because of
low concentration.
Medium
Check agents’
concentration ratio.
CO
2
CO
2
Comm Fail
CO
2
module failure or
communication failure
High
Check if the water
tray has been fixed.
CO
2
Sensor Over
Temp
CO
2
sensor temperature
exceeds +40 °C.
High
Stop using
measuring function
of CO
2
module,
notify biomedical
engineer.
CO
2
Sensor Faulty
CO
2
module failure High
CO
2
Zero Required
Zero calibration failure Low
Disconnect the
sampling cannula or
adapter from the
airway; initiate the
zeroing before
making sure that no
expired air is inside
the sampling
cannula and adapter.
CO
2
Check Adapter
1) For the Respironics CO
2
module: The cannula is off
or disconnected.
2) For the EDAN CO
2
module: The water trap is
disconnected or not properly
connected.
Low
1) For the
Respironics CO
2
module: Check
whether the adapter
is properly
connected or
replace the adapter.
2) For the EDAN
CO
2
module:
Properly connect
the water trap.
CO₂ Out Of Range
The CO
2
concentration
exceeds the accuracy range
of CO
2
module.
High
Reduce CO
2
concentration.
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