Rotronic HygroFlex4 HF4 - Temperature & Humidity transmitter
The HF4 transmitter is designed for fixed installation in HVAC and light industrial applications that require precise measurement of humidity and temperature within the range of 0 to 100 %RH and -50 to 100C (-58 to 212F).
The HF4 transmitter is available in different configurations and has extensive settings and functions that can be configured and enabled with the ROTRONIC HW4 software after connecting the HF4 to a PC.
- Measures relative humidity and temperature, or humidity only, or temperature only
- Calculates the dew or frost point
- Accuracy at 23 C: 1.0 %RH and 0.2C
- Configurable analog output signals (signal type, parameter and range)
- Optional LCD display and keypad
- Analog output signals or digital interface
- Digital interface allows the simultaneous reading of relative humidity, temperature and one calculated parameter
- Digital interface offers several communication protocol options, including a ModBus compatible protocol
- Automatic RH sensor test with optional sensor drift correction
- 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