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Siemens Duct Sensor for Temperature & Humidity – QFM2171


Siemens Duct sensors for measuring relative humidity and temperature in air ducts of ventilation and air conditioning.

The sensors are used as:

i) Control sensors in the supply or extract air.

ii) Reference sensors, e.g. for shifting the dew point

iii) Limit sensors, e.g. in connection with steam humidifiers

iv) Limit sensors, e.g. for measured value indication or for connection to a building automation and control system

v) Sensors for enthalpy and absolute humidity, together with SEZ220 (Ref datasheet N5146)

Categories: ,
Operating Voltage

DC 13.5…35 V

Frequency

50/60Hz

Power Consumption

≤1 VA

Temperature Measuring Range

0…50 °C / – 35…+3 5 °C
or – 40…+7 0 °C

Temperature Signal Output

active, 4…20 mA

Humidity Measuring range

0…100%r.h.

Humidity Signal Output

active, 4…20 mA

Protection degree of housing

IP54 according to EN 60529

Protection class

III according to EN 60730-1

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