D-6 
Measurement  Alarm message  L I Cause and solution   
YY Non-Pulsatile  L  A The catheter may be occluded. Please flush 
the catheter. 
YY represents an IBP label. 
C.O.  TB Sensor Off    L  A Check the sensor connection and reconnect 
the sensor. 
CO
2
 CO
2
 Sensor High 
Temp 
L  C Check, stop using or replace the sensor. 
CO
2
 Sensor Low 
Temp 
L  C Check, stop using or replace the sensor. 
CO
2
 Temp Overrange  L  C The operating temperature of the CO2 
module goes beyond the specified range. 
After it restores within the specified range, 
the module will restart automatically. 
CO
2
 High Airway 
Press. 
L  C An error occurred in the airway pressure. 
Check the patient connection and patient 
circuit, and then restart the monitor. 
CO
2
 Low Airway 
Press. 
L C
CO
2
 High Barometric  L  C Check the CO2 connections, make sure that 
the monitor application site meets the 
requirements, and check for special sources 
that affect the ambient pressure. Restart the 
monitor.  
CO
2
 Low Barometric  L  C
CO
2
 FilterLine 
Occluded 
L 
 
C
 
The airway or watertrap was occluded. 
Check the airway and remove the occlusion.
CO
2
 No Watertrap    L  B Check the watertrap connections.   
CO
2
 Check Adapter  L  A There is a problem with the airway adapter. 
Check, clean or replace the adapter.   
CO
2
 FilterLine Err  L  C Check if there is a leak in the CO
2
 sample 
line or the CO
2
 sample line has been 
occluded.  
CO
2
 Zero Failed  L  A Check the CO
2
 connections. After the 
sensor’s temperature becomes stabilized, 
perform a zero calibration again.   
CO
2
 System Err  L  A Re-plug the module or restart the monitor. 
CO
2
 Check Cal.  L  C Perform a calibration. 
CO
2
 Check Airway  L  C An error occurred to the airway. 
CO
2
 No Filterline  L  A Make sure that the filterline is connected.   
CO
2
 No Sensor  L  A Make sure that the sensor is connected. 
CO
2
 Main Board Err    H  C There is a problem with the CO
2
 module.