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CO
2
Using the CO
2
sensor and corresponding calibration curve, the air quality can be mea-
sured. The sensor has a measuring range of up to 5000 ppm (parts per million). The
CO
2
value is a decisive factor for the air quality.
CO
2
value possible occurrences effect
400 fresh ambient air comfortable
1000 ventilated classroom comfort limit
2000 classroom - windows mostly
closed
declining concentration
3000 classroom - windows closed headache
Infrared temperature
Shows the current temperature of the object illuminated by the sensor. The sensor has
a 1:10 optic. This means that at a distance of 1 meter, a measuring area of 16 cm is
created. Info: No shiny or reflective materials can be measured.
7.2 Application range
Within the normal application range (normal range) the accuracy of the device is as
indicated. A long-term application beyond the normal application range (max. range),
particularly at an air humidity of more than 80 %, can lead to higher measuring errors
(+3 % after 60 hours). Back in the normal application range, the sensor will return to
the indicated accuracy automatically.
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