Humidity


Humidity Measurement

The main fields of use for humidity measuring equipment lie in the air-conditioning (HVAC) and food industries, heating, ventilation, pharmaceutical  and applications as well as drying processes and storage. Measurement of air humidity moreover plays a key role in meteorology, while archives and museums also use data loggers or humidity measuring instruments. Apart from humidity, temperature is often also measured. Rotronic humidity measuring instruments therefore usually also measure temperature at the same time.

Status Instruments provide a range of “smart” humidity transmitter with either 1 or 2 x (4 to 20) mA two wire outputs. The products will measure humidity, temperature, dew point and delta T (the difference between dewpoint and ambient temperature) values. Using free software,  PC configuration allows you to output any of these 4 parameters onto the 4 to 20mA signal. 

Configuration is performed quickly using our new USB port driven configurator by connecting the transmitter to the configurator and following the software instructions. The software allows you to tag the device, set installation date and set output range. Either fixed ranges or your own custom ranges can be configured for all output types in °C or °F.

The 4 digit LED display option provides you with a visual indication of the process parameters, the display may be set to indicate either humidity, temperature, dew point or toggle between all three parameters.

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Portable Humidity measurement

Portable Thermohygrometers

The Delta Ohm HD2101 Series of portable instruments provide a large LCD display.  They measure RH humidity and temperature using a Pt100 sensor or thermocouple humidity/temperature combined probe.  Temperature only is measured by immersion, penetration air or contact probes.  When probes are connected, the instrument calculates and displays the absolute humidity, the dew point, the partial vapour pressure, the wet bulb temperature, the mixing ratio, the enthalpy and the comfort indices.  Probes are fitted with an automatic detection module, with the factory calibration data already stored inside.

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