The HF5-series is the latest development in measurement transmitters for humidity, temperature and dewpoint. The HF5-series is compatible with HygroClip2 series probes with integrated AirChip3000 technology – thanks to which the probes achieve an unparalleled degree of accuracy not seen before. HygroFlex HF52, HF53, HF54 and HF56 transmitters combined with a HC2A-S advanced probe provide superb precision and state-of-the-art functionality, taking humidity and temperature measurement to a whole new level of accuracy < 0.8 %rh and < 0.1 K at 10...30 °C. One outstanding feature of this measurement device is the possibility to output any psychrometric calculation as an analogue or digital signal.

Applications of the HF5 Transmitter: Measures relative humidity and temperature and calculates all psychrometric parameters in the fields of

  • Pharmaceutical industry
  • Food industry
  • Brick industry
  • Heating, ventilation, air conditioning
  • Printing and paper industries


  • HF5 transmitter measures relative humidity, temperature and dew point
  • Absolute repeatability guaranteed
  • Freely configurable and scalable analog outputs

Features of the HF5-series transmitters

  • Relative humidity and temperature measurement
  • Dew Point and other psychrometric calculations
  • Interchangeable probe for easy maintenance
  • Wide choice of probes to satisfy every application
  • Low voltage and mains versions
  • Freely scalable analogue signals
  • Various digital outputs available
  • Available with metal housing
  • Proven housing: Robust, industrial quality housing
  • Wall or duct mounting possible
Accuracy at 23 ±5 °C Prob dependent
Operating range HF520: -25…60 °C / 0…100 %rh / HF53/54/56: -40…60 °c / 0…100 %rh / HF5X with screen -10…60 °C
Power consumption HF52: 10...28 VDC: 10 V+(0.02x load) HF53: 15…40 VDC /12…28 VAC HF54 with galvanic isolation: 9...36 VDC HF56 with galvanic isolation: 85...240 VAC HF52: max 40 mA HF53 <100mA
Psychrometric calculations All psychrometric values
Backlight with Backlight
Display type Optional graphics display. Presentation configurable.
Initialisation time Typically <3 sec.
Number of probe inputs 1
Alerting Sensor break or short circuit, programmable.
Alarm indicators Yes
Exploitation software ROTRONIC HW4
Probe adjustment by software Yes, with service cable
Probe adjustment by keypad display / keyboard
Software Update With internet and HW4 software
Data processing via HW4 Graphics, statistics, analysis, qualification, etc.
Analogue outputs scaleable by the user Yes
Analog output signal (standard) 2 x 0…1 V, 0…5 V, 0…10 V, 0(4)…20 mA
Automatic load compensation Yes
Circuit type 2 -Wire or 3/4-Wire
Communication interfaces RS-485 / USB / LAN / WLAN
Cable connections M16 cable gland and screw terminals
Enclosure material ABS / Aluminium (HF5xxS)
IP protection rating IP65 / Corresponds to UL94-HB protection class
Service Interface Mini USB (UART)
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible
Dimensions HF52, HF53, HF54: 129 x 72 x 45 mm
HF56: 192 x 102 x 52 mm
Weight 220 g / 500 g

Want to learn more about our products?
We will be pleased to personally advise you.

+65 6376 2107

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