Siemens Sensors
Humidity and temperature

Room sensors QFA..

Room sensors for rel. humidity / temperature for demanding requirements,with calibration certificate QFA41..  

For relative humidity and temperature.

The QFA41.. sensor is used in ventilation and air conditioning plants requiring very high accuracy and reliability for measuring relative humidity and temperature where calibration certificates are needed.

Range of use:

• Version: r.h.; r.h./T 

• Humidity: 0…100%

• Temperature: -40...70 °C

• Supply: AC 24 V / DC 13.5…35 V

• Output: DC 0...10 V / DC 4...20 mA

• Protection class: IP65

Signal output humidity Signal output temperature Operating voltage
[V]
Measuring range,
temperature
Display Stock No. Product No.
DC 0...10 V DC 0...10 V AC 24
DC 13.5...35
0...50 °C
-35...35 °C
-40...70 °C
--- BPZ:QFA4160 QFA4160
DC 0...10 V DC 0...10 V AC 24
DC 13,5...35
0...50 °C
-35...35 °C
-40...70 °C
LCD BPZ:QFA4160D QFA4160D
DC 4...20 mA DC 4...20 mA DC 13.5...35 0...50 °C
-35...35 °C
-40...70 °C
--- BPZ:QFA4171 QFA4171
DC 4...20 mA DC 4...20 mA DC 13,5...35 0...50 °C
-35...35 °C
-40...70 °C
LCD BPZ:QFA4171D QFA4171D