Rotronic HF8 Series Humidity Temperature Transmitter

The HF8 has two probe inputs and the optional HW4 software allows users to configure the connected HygroClip2 or 3rd party analog probes exactly to their needs. Each HF8 has 4 analog outputs and 4 alarm relays programmable to any probe input and any probe parameter, including all psychrometric calculations such as dew point or wet-bulb. Audible and visual alarms can be activated as well. The data logging function on the HygroFlex 8 allows recording of up to 20,000 data points with date and time stamp. Users can configure the logging intervals and download, store and graph the data with the HW4 software.

Together with the digital HygroClip2 probes, the HygroFlex8 is one of the most versatile and precise humidity and temperature measuring instruments available on the market.

With a measurement accuracy of 0.8% RH and 0.1°C, the instruments can measure humidity ranges from 0 to 100%RH and overall temperature ranges of -100 to 200°C depending on the type of probe being used.

• Two inputs: HygroClip 2 relative humidity and temperature digital probe or 1-channel analog probe (barometric pressure or other)
• Calculates dew point, frost point, wet-bulb temperature, mixing ratio, etc.
• 0 to 100 %RH and -100 to 200 °C (-148 to 392 °F) – depending on probe model
• Accuracy at 23 °C: ± 0.8 %RH and ± 0.1 °C
• Real time clock
• Up to 10,000 pairs of temperature & humidity samples
• Record both probes simultaneously
• Start / Stop or loop recording mode
• Configurable analog output signals (signal type, parameter and range)
• User definable Hi / Lo alarm for each measured or calculated parameter.
• Relay outputs can be associated with the alarm conditions of any parameter, configurable timing options
• Automatic RH sensor test with optional sensor drift correction 1)
• Configurable fail safe mode – fixed output signals in the event of a humidity or temperature sensor failure
• Simulator function (fixed output signals) for on-site validation of the measurement loop
• Full access to configurable settings via service connector or optional digital interface

The HygroFlex8-series is ideal for all applications where exact measurement of humidity and temperature is of decisive importance, for example the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology and climatology. There is hardly a field today in which these parameters may be ignored. It is ultimately the measuring task at hand that defines the combination of transmitter and probe that best covers your needs.

• 0 to 100 %RH and -100 to 200 °C (-148 to 392 °F) – depending on probe model
• Accuracy at 23 °C: ± 0.8 %RH and ± 0.1 °COutput Signal Options
• 4 analog output signals + 4 relay contacts (no digital interface).
• 4 analog output signals + 4 relay contacts + RS-485
• 4 analog output signals + 2 relay contacts + RS-485 + Ethernet (wired)
• Ethernet with PoE (complies with standard IEEE 802.3af)
• Optional LC display and keypadMechanical Configuration Options
• Surface mount enclosure
• Up to 5 m / 16.4 ft probe extension cable (100 m / 330 ft with a signal booster)Electrical Configuration Options
• 3-wire, 15 to 40 VDC or 12 to 28 VAC – 50/60 Hz
• 3-wire, 9 to 36 VDC or 7 to 24 VAC – 50/60 Hz, galvanic power supply isolation
• 85 to 265 VAC, 5 Watt, 50-60 Hz, galvanic power supply isolation
  

• Rotronic HF8 Data Sheet.pdf
• Rotronic HF8 Manual.pdf