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HF5-EX Series Temperature & Humidity Transmitters for Hazardous Area Installations


Omni Instruments : Product available from October 2014

5-EX Series Temperature & Humidity Transmitters for Hazardous Area Installations

The HF5-EX series can only be used together with the intrinsically safe HC2-EX probes, available below, to provide a temperature and humidity monitoring system suitable for use in a Zone 1 or 2 Hazardous Area. The relative humidity and temperature can be displayed and output as analogue 4-20mA signals. Calculated psychrometric values such as dew point or mixing ratio can also be derived and provided as one of the output signals. Probes are interchangeable and suitable for mounting in Zone 0/20. Ranges: Temperature -40 to +60°C, Relative Humidity 0 to 100%. Accuracy ±0.8%RH, ±0.1°C.


Safe operation in areas with explosion risk.
Intrinsically safe electrical construction
No IS power supply required, power supply via HF5 EX transmitter (10-28vDC)
Measures relative humidity and temperature, optional dew point and other calculated parameters.
Temperature measurement range -40 to +60°C (at probe)
Accuracy: ±0.8%RH / ±0.1°C
Robust Aluminium housing, IP66
Duct and Wall mounted versions available
Interchangeable probes
Easy configuration

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