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Siemens® QFM2171 Duct Sensor
KSh 25225
Siemens® QFM2171 Duct Sensor transmits changes in humidity and temperature to the building control systems. These sensors are mainly suitable for applications where precise, stable humidity sensing is required.
Applications: Air Ducts, HVAC Systems, etc
Siemens® QFM2171 Duct Sensors are for use in air ducts of ventilation and air conditioning plants for acquiring
- Relative Humidity
- Temperature
The sensors are used as:
- 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
| Manufacturer | Siemens |
|---|---|
| Model No | QFM2171 |
| Measuring Parameters | Temperature and Relative Humidity |
| Temperature Range | -35 to +35 °C, -40 to +70 °C, 0 to 50℃ |
| Temperature Accuracy | ±0.3 °K |
| Humidity Range | 0 to 100% RH |
| Humidity Accuracy | ±3% RH |
| Voltage | DC 13.5…35 V |
| Response Time | Humidity: 20 s, Temperature: 20 s |
| Immersion Length | 90…154 mm |
| Connection Type | Screw terminals |
| Protection Class | IP 54 |
| Output | 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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