8-7
8.3.5 Scavenge the Sample Gas
To scavenge the sample gas to the waste gas disposal system, depress the metal chip and then
plug the exhaust tube to the ports marked
(sample gas return to the AGSS) on the
anesthesia machine as shown in the above picture.
WARNING
z When using CO2 module to perform CO2
measurements on the patient who is
receiving or has recently received anesthetic agents, connect the gas outlet to the
waste gas disposal system to prevent the medical staff from breathing in the
anesthetic agent.
8.3.6 Zero the Sensor
Zeroing the sensor aims to eliminate the effect of baseline drift on the readings during the
measurement so as to ensure measurement accuracy.
For CO2 module, a zero calibration is carried out automatically when necessary. You can also
start a manual zero calibration when deemed necessary. To manually start a zero calibration,
enter the [Gas Module Setup >>] menu and then select [Zero]. You do not need to
disconnect the sensor from the breathing system when performing the zeroing.
8.3.7 Calibrate the Sensor
For CO2 module, a calibration should be performed once a year or when the measured value
has a great deviation.
Metal chip
Exhaust tube
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