QFM2171    | Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA  |   Siemens
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Brand: SiemensSKU: QFM2171

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$174.69
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QFM2171 | Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens

This Q-Series Duct Relative Humidity & Temperature Sensors monitor and transmit changes in humidity and temperature to the building control systems. These units are especially suited for applications where precise, stable humidity sensing is required. This sensor has a 5 percent accuracy rating, a 4 to 20 mA humidity output signal, and a 4 to 20 mA temperature signal.

Siemens | QFM2171
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Overview

Details for QFM2171

Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA

Specifications

Immersion length
90…154 mm
Measurement range humidity
0…95 % r.h.
Measuring range, temperature
0…50 °C, -35…35 °C, -40…70 °C
Sensing element, temperature
DC 4...20 mA
Time constant
Humidity: 20 s, Temperature: 20 s, Air v=2 m/s: 210 s
Signal output humidity
DC 4...20 mA
Signal output temperature
DC 4...20 mA
Operating voltage
13.5…35 VDC
Analog outputs
4-20 mA
Measuring range
Temperature: -40 to 158°F; Humidity: 0 to 95% RH
Measurement accuracy
At 15…35 °C: ±0.6 K, 23 % r.h., 30…70 % r.h.: ±3 % r.h.
Dimensions (W x H x D)
80 x 88 x 39 (222) mm

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