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Carbon Dioxide (CO
2
) Sensor and Airway Adapter Tube
Carbon Dioxide (CO
2
) Sensor and Airway Adapter
Tube
Carbon Dioxide Sensor
The Model 9840SA CO
2
Sensor is a crescent-shaped device containing light emitting and detecting
elements (Figure 6) on the end of a cable that connects to the 9847. The CO
2
sensor is connected on to
the Model 9840AAT Airway Adapter Tube, which in turn is connected between the endotracheal tube and
the breathing circuit of intubated patients.
Figure 6: Model 9840SA Carbon Dioxide Sensor
WARNING: Do not use the Model 9847 CO
2
detector for patients younger than 3 years
old and weighing less than 10 kg (22 lb) due to the dead space introduced by the
airway adapter tube.
WARNING: Do not use a damaged sensor. If the sensor is damaged in any way,
discontinue use immediately and replace the sensor.
CAUTION:
Before use, carefully read the instruction insert provided with the
sensors.
CAUTION:
Water or other liquid between the airway adapter tube and the CO
2
sensor may cause erroneous readings.
CAUTION:
Ensure that all connections to the airway adapter tube are tight and
leak-free, and that the airway adapter tube is properly attached to the CO
2
sensor.
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