Patient Monitor User Manual Monitoring CO
2
- 136 -
15.3 Monitoring Procedures
15.3.1 Zeroing the Sensor
For the EDAN EtCO
2
module:
EDAN EtCO
2
module itself has automatic zero function, only when the measurement is abnormal
or measurement results are doubtful, the user can perform manual zero as following steps:
1. Wait until the monitor’s warm-up message disappears; keep the monitor away from CO
2
source.
2. In the CO
2
Setup menu, set Work Mode to Measure.
3. Select Zero Calibration in CO
2
Setup menu.
4. After the zeroing calibration is completed, the zeroing message disappears, and the CO
2
monitoring can be performed.
For the Respironics Sidestream CO
2
Module:
1. Connect the sample line to the module correctly, wait until the monitor’s warm-up message
disappears, keep the inlet of sample line away from CO
2
source.
2. In the CO
2
Setup menu, set Work Mode to Measure.
3. Select Zero Calibration in CO
2
Setup menu.
4. After the zeroing calibration is completed, the zeroing message disappears, and the CO
2
monitoring can be performed. If the monitor displays Breath Detected or Zero Required,
zeroing has failed. Zero calibration must be performed again.
For the Respironics Mainstream CO
2
Module:
1. Wait until the monitor’s warm-up message disappears; correctly install the mainstream CO
2
sensor to airway adaptor and remove it from breathing circuit, keep the monitor away from
CO
2
source.
2. In the CO
2
Setup menu, set Work Mode to Measure.
3. Select Zero Calibration in CO
2
Setup menu.
4. After the zeroing calibration is completed, the zeroing message disappears, and the CO
2
monitoring can be performed. If the monitor displays Breath Detected or Zero Required,
zeroing has failed. Zero calibration must be performed again.
Note: CO
2
source includes ventilator, patient’s and operator’s breath.
15.3.2 Sidestream CO
2
Module
15.3.2.1 Measurement Steps
For the EDAN EtCO
2
Module:
1. Fix the water trap to the water trap holder in the V-CO
2
module (EDAN CO
2
module),