Patient Monitor User Manual Monitoring CO
2
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NOTE:
After the low battery alarm appears, please do not start the CO
2
measurement, or the
monitor may turn off for the low battery.
16.3 Monitoring Procedures
16.3.1 Zeroing the sensor
You must perform zeroing following the steps when using the new airway adapter.
1. Expose the sensor to room air and keep it away from all sources of CO
2
including the
ventilator, the patient’s breath and the operator’s.
2. In the CO
2
Setup menu, please set the Work Mode to Measure.
3. In the CO
2
Setup menu, select Zero Calibration.
4. If the system briefly displays Zero In Progress, the process is successful. After the
zeroing calibration is finished, you can start CO
2
Monitoring. If the system displays
Breath detected or Zero required, zeroing has failed. Zero calibration must be
performed again.
16.3.2 LoFlo CO
2
Module
NOTE:
You must perform a zero calibration as described in this procedure each time the ambient
temperature changes more than 10°C (for example during transport).
LoFlo CO
2
module
16.3.2.1 Measurement Steps
1 Plug the sensor cable into the monitor’s CO
2
input connector. Allow the sensor two minutes
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