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Product Description
Siemens QFA3171 Outdoor Air Relative Humidity Index Track and monitor relative humidity/temperature sensors and transmit temperature and humidity shifts to control system construction. Standard available Models are rated for 2 % and 2 %, for humidity only and Combining humidity with a sense of temperature. Sensors are accessible with 4 to 20 mA, or input signals 0 to 10 Volts.
Features of Siemens QFA3171 Humidity Sensor
- 4 to 20 mA or 0 to 10 Vdc output signals
- High degree of accuracy
- Removable, replaceable sensing tip sold separately on B-39
- “D” suffix models include LCD Display*
Additional Information
| Weight | 1 kg |
|---|---|
| Manufacturer | Siemens |
| Model No. | QFA3171 |
| Measuring Parameters | Temperature and humidity |
| Range | 0 to 50 °C (R2 = factory setting), −35 to +35 °C (R1), −40 to +70 °C (R3) |
| Accuracy | 23 °C ±<0.5 K ; 15 to 35 °C ±0.6 K ; −35 to +70 °C ±0.8 K |
| Operating Temperature | -31 to +140°F (-35 to +60°C) |
| Temperature Effect | Less than 0.1% per degree C |
| Operating Humidity | 0...100 % r.h. (with condensation) |
| Dimensions | 3.43 X 3.5 X 4.1" ; 87 X 89 X 104 mm (H X W X D ) |
| Weight | Without LCD-display 0.152 kg ; With LCD-display 0.175 kg |
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