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The HygroFlex1 series is the latest development in inexpensive HVAC transmitters for relative humidity and temperature. The devices are equipped with the tried-and-tested Hygromer® IN-1 sensor and boast unbeatable value for money. The optional ROTRONIC HW4/SW21 software enables you to change the scale and calibrate and adjust the transmitter.

Features
• Measures relative humidity and temperature
• Hygromer® IN-1 humidity sensor
• Adjustable at 35 % / 80 %RH
• Two freely scalable analog voltage or current outputs
• USB service interface
• Small footprint
• Easy mechanical installation

  • Operating range : -20…50 °C / 0…100 %RH (non-condensing)
  • Accuracy at 23 ±5 °C : < 3 %RH (10…90 %RH) / ± 0.3 °K (0…50 °C)
  • Power supply / Power consumption : 12…28 VAC / 15…40 VDC
  • Current consumption :2-wire type max. 40mA / 3/4 wire type, with voltage output: < 15 mA, with current output: < 55 mA
  • Long-term stability : < 1.5 %RH per year
  • Humidity sensor : ROTRONIC HYGROMER® IN-1
  • Standard temperature scale : 0…50 °C or 0…100 °F
  • Temperature sensor : Thermistor
  • Response time : 4s
  • Response time t 63 : 30 s (63 % of a jump 35…80 %RH) without filter
  • Parameters shown : Humidity and/or temperature
  • Circuit type : 2 -Wire or 3/4-Wire
  • Analogue outputs scaleable by the user : 2
  • Min. / max. load voltage / current signal : 4…20 mA ; 0…1/5/10 VDC
  • Housing : ABS
  • IP protection rating : IP65
  • CE / EMC conform : 2004/108/EC
  • Weight : Wall version type W and A: 140 g / Duct version 100 mm type B and D: 140 g / Duct version 300 mm type E and F: 200 g / Space mount version type L and S: 90 g

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HygroFlex1 – HF1 – inexpensive HVAC transmitter