QFM2171

QFM2171

Duct sensor for humidity (DC 4…20 mA) and temperature (DC 0…20 mA)

Operating voltage                            DC 13.5…35 V

Sensing element, temperature      DC 4…20 mA

Measuring range, temperature      0…50 °C, -35…35 °C, -40…70 °C

Measurement range humidity       0…95 % r.h.

Measurement accuracy                  Humidity at 30…70 % r.h. and 23 °C: ±3 % r.h., Temperature, at 15…35 °C: ±0.8 K, Temperature, at 35…50 °C: ±1.0 K

Time constant                                   Humidity: 20 s, Temperature: 20 s

Immersion length                             90…154 mm

Connection, electrical                     Screw terminals

Type of fixing                                    Flange

Analog output, signal                      DC 0…10 V, DC 4…20 mA

Signal output temperature             DC 4…20 mA

Signal output humidity                   DC 4…20 mA

Degree of protection                        IP54

Dimensions (W x H x D)                 80 x 88 x 39 mm