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Product Description
Siemens® QFM2171 Duct Sensor transmits the changes in humidity & temperature to the building control systems. These sensors are mainly suitable for applications where precise, stable humidity sensing is requires.
Siemens® QFM2171 Duct Sensors are for use in air ducts of ventilation and air conditioning plants for acquiring:
- Relative Humidity
- Temperature
The sensors are mainly uses in:
- Control sensors in the supply or extract air
- Reference sensors, e.g. for shifting the dew point
- Limit sensors, e.g. in connection with steam humidifiers
Additional Information
Weight | 1 kg |
---|---|
Manufacturer | Siemens |
Model No | QFM2171 |
Measuring Parameters | Temperature and Relative Humidity |
Temperature | -35 to +35 °C, -40 to +70 °C, 0 to 50℃ |
Accuracy | ±0.3 °K |
Humidity | 0 to 100 %RH |
Accuracy_1 | ±3% RH |
Operating Voltage | DC 13.5...35 V |
Sensing element, temperature | DC 4 to 20 mA |
Time constant | Humidity: 20 s, Temperature: 20 s |
Immersion length | 90...154 mm |
Connection, electrical | Screw terminals |
IP Rating | IP 54 |
Type of fixing | Flange |
Analog Output, Signal | DC 0...10 V, DC 4...20 mA |
Signal output temperature | DC 4 to 20 mA |
Signal output humidity | DC 4 to 20 mA |
Dimensions | 80 X 88 X 39mm |
Weight | 590 Grams |
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