Rotronic HF5 Series Humidity Temperature Transmitter

The HF5 transmitter is designed for fixed installation in HVAC and industrial applications, and provides two analog outputs or a digital output signal corresponding to relative humidity, temperature, dew point or another psychrometric parameter.

The HF5 uses a plug-in HygroClip 2 probe, the model of probe being determined by the application. The measuring range is within 0 to 100 %RH and -100 to 200°C (-148 to 392°F), depending on the probe. All HygroClip 2 probes feature durable sensors, consistent performance and can be hot-swapped at any time to facilitate routine calibrations.

The HF5 transmitter is available in different configurations and has an extensive set of settings and functions that can be configured and enabled with the ROTRONIC HW4 software after connecting the HF5 to a PC.

In spite of its sophistication, the HF5 can be used as a simple conventional humidity and temperature transmitter. Whether you decide or not to take advantage of its full potential, the HF5 will let you have it your way.

• Interchangeable probe facilitates maintenance and reduces service downtime
• Large choice of probe models to meet the requirements of most applications
• Probe can be separated from transmitter by up to 5 m / 16.4 ft (100 m / 330 ft with a signal booster)
• Measures relative humidity and temperature
• Calculates dew point, frost point, wet-bulb temperature, mixing ratio, etc.
• Accuracy at 23 °C: ± 0.8 %RH and 0.1 °C
• Operating limits at probe 0 to 100 %RH and -100 to 200 °C (-148 to 392 °F) – depending on probe model
• 2-wire, loop-powered and 3-wire models
• Supply voltage: 10 to 28 VDC (2-wire models) or 15 to 40 VDC / 12 to 28 VAC (3-wire models)
• Optional LC display and keypad
• Analog signals only / Analog signals and Digital interface / Digital interface only
• Digital interface allows the simultaneous reading of relative humidity, temperature and calculated parameter
• Configurable analog output signals (signal type, parameter and range)
• 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 the settings and functions via external service connector or via optional digital interface

The HygroFlex5-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 °C
• 2-wire, loop-powered and 3-wire models
• Supply voltage: 10 to 28 VDC (2-wire models) or 15 to 40 VDC / 12 to 28 VAC (3-wire models)