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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.
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Documents and manuals
Siemens QFM2171 Documents
Datasheet(Duct sensors QFM21... with 0…5 V output)Datasheet(Q-Series Duct Relative Humidity and Relative Humidity and Temperature Sensors Technical Specification Sheet)Datasheet(Duct Sensors QFM21xx Series Technical Instructions)Datasheet(Duct Sensor QFM31xx Series Technical Instructions)Datasheet(Duct sensors QFM21... w/o 0…5 V output)Declaration of conformity(EU Declaration of Conformity QFM21xx)Declaration of conformity(RCM Supplier's declaration QAM21... / QFM...)Declaration of conformity(UK Declaration of conformity for QFM21xx)Declaration of conformity(Test report MTBF for QFM... QFA..)Declarations and Certificates(OSS Readme for QAE2164.010. QAE2164.015. QAM2161.040. QFM2100. QFM2120. QFM2160. QFM2160U. QFM3100. QFM3160. QFM3160D. QPM2102. QPM2102D. QPM2163. QPM1162. QPM1160)Environmental Declaration(Duct sensor for relative humidity and temperature)Installation instruction(Q-Series Relative Humidity (RH) and Relative Humidity and Temperature (RH/T) Duct Sensors Installation Instructions)Mounting instruction(Duct sensor for rel. humidity / temperature QFM... with 0…5 V output)Mounting instruction(Duct sensor for rel. humidity / temperature QFM... w/o 0…5 V output) Installation Instructions More Info
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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