Measuring Mainstream CO
2
using M3016A 14 Monitoring Carbon Dioxide
175
Removing Exhaust Gases from the System
WARNING Anesthetics: When using the sidestream CO
2
measurement on patients who are receiving or have
recently received anesthetics, connect the outlet to a scavenging system, to avoid exposing medical staff
to anesthetics.
Use an exhaust tube to remove the sample gas to a scavenging system. Attach it to the sidestream sensor
at the outlet connector.
Measuring Mainstream CO
2
using M3016A
The M3016A Mainstream CO
2
Extension measures partial pressure of carbon dioxide in a patient’s
expired gas using the mainstream method. When using the appropriate accessories you can use the
mainstream CO
2
measurement with ventilated adults, pediatric and neonatal patients.
WARNING Infra-red radiation: Do not expose the airway adapter or M1460A transducer to infra-red radiation
during use. This may cause incorrect readings.
Preparing to Measure Mainstream CO
2
1 Attach the transducer connector to the CO
2
connector on the M3016A extension.
2 Wait 20 minutes, allowing the transducer to reach its operating temperature and a stable thermal
condition.
3 Perform an accuracy check and then, if necessary, calibrate the transducer.
Checking Transducer Accuracy
WARNING Check transducer accuracy at least once a week or if you doubt the CO
2
readings.
1 In Setup CO
2
menu, select Cal. Mode to switch on calibration mode.
2 Look at the calibration value displayed in the Setup CO
2
menu next to Start CAL1. Is it the
same as the value on the calstick? If not, calibrate the transducer now.
3 Place the transducer on the low cell of the calstick (labelled 0.0 mmHg or “ZERO”). The reading
on the screen should be zero within ±1 mmHg within one minute.
4 Place the transducer on the high cell of the calstick. The reading on the screen should be within ±1
mmHg of the value on the calstick within one minute.
5 If both readings are in range, you can leave calibration mode and begin monitoring. If either of the
readings is out of range, calibrate the transducer.
Calibrating the Transducer
1 Check that the windows on the calstick are clean and clear.
2 Place the transducer on one of the calstick cells and select Start CAL1.
To Next Page
Loading...
Need help?
General
