Data Sheet for Product

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Siemens Duct air quality sensors QPM11.., QPM21.. CE1N1962en
Smart Infrastructure 2020-03-03
Pt 1000 (Kl. B) Characteristic curve: Accuracy:
Pt 100 (Kl. B) Characteristic curve: Accuracy:
NTC 10k Characteristic curve: Accuracy:
R Resistance in Ohm
J Temperature in Celsius
DJ Temperature differential in Kelvin
Mechanical design
The duct air quality sensor consists of housing, printed circuit board, connection termi-
nals, mounting flange and immersion rod with measuring probe.
The 2-sectional housing is comprised of base and removable cover (without display:
snap-on design; with display: screwed fastening). The measuring circuit and the setting
elements are located on the printed circuit board inside the cover, the connection ter-
minals on the base.
The humidity and temperature sensing elements are located at the end of the measur-
ing probe and are protected by a filter cap.
Cable entry is made via the cable entry gland M16 (IP 54) supplied with the sensor,
which screws into the housing.
Immersion rod and housing are made of plastic and are rigidly connected.
Key