The HF5-series is compatible with HygroClip2 probes with integrated AirChip3000 technology – thanks to which the probes achieve an unparalleled degree of accuracy not seen before.
In combination with advances in sensor technology and integration, the HygroFlex HF52, HF53, HF54, HF55 and HF56 transmitters combined with a HC2-S 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 23 °C. 

Measures relative humidity and temperature and calculates all psychrometric parameters in the fields of HVAC, industry and pharmaceuticals.

• 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

Dimensions HF52, HF53, HF54, HF55: 129 x 72 x 45 mm
HF56: 192 x 102 x 52 mm
Weight 220 g / 500 g
Operating range HF520: -25…60 °C / 0…100 %rh / HF53/54/55/56: -40…60 °c / 0…100 %rh / HF5X with screen -10…60 °C
Accuracy at 23 ±5 °C Probe dependent
Power supply / Power consumption 15…40 VDC or 12…28 VAC/ <100 mA
Psychrometric calculations All psychrometric values
Number of probe inputs 1
Initialisation time Typically <3 sec.
Display type Optional graphics display. Presentation configurable.
Backlight with Backlight
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
Firmware update With internet and HW4 software
Data processing via HW4 Graphics, statistics, analysis, qualification, etc.
Circuit type 2 -Wire or 3/4-Wire
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
Communication interfaces RS-485 / USB / LAN / WLAN / PoE (Modus B)
Service Interface Mini USB (UART)
Enclosure material ABS / Aluminium (HF5xxS)
Cable connections M16 cable gland and screw terminals
IP protection rating IP65 / Corresponds to UL94-HB protection class
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible