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5.8 CO
2
sensor for Carbon Dioxide measurement in combustion processes
Carbon Dioxide (CO
2
) is the result of combustion of an organic compound in presence of a quantity of oxygen
sufficient to complete its oxidation. In nature, it is also produced by aerobic bacteria during the process of
alcoholic fermentation and is the by product of respiration.
Many combustion processes are defined with 'mixed fuel' and is therefore difficult to calculate the amount of CO
2
produced. To avoid this drawback, the only way to know the amount of CO
2
produced in a combustion process
with 'mixed fuel' is to measure the CO
2
with special NDIR sensors.
5.9 Installing the CO
2
sensor
When the CO
2
(position S3/S4) is mounted in the CHEMIST 400, it is mandatory to configure the autozero by
setting it at 60 seconds, in order to allow for a proper pre-heating of the sensor itself.
►Fuel
Measurement units
O
2
Reference
Display contrast
Autozero/Pump
▼
CONFIGURATION
Fuel
Measurement units
O
2
Reference
Display contrast
►Autozero/Pump
▼
CONFIGURATION
►Autozero
Pump
AUTOZERO/PUMP
s
on
15
Autozero
Pump
AUTOZERO/PUMP
s
on
15
Autozero
Pump
AUTOZERO/PUMP
s
on
60
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