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The DT722 relative-humidity (RH) and temperature transmitters from Michell Instruments have been designed for use in severe industrial environments. Excellent chemical resistance makes the transmitters suitable for longer use in contaminated areas.

The transmitters are available in digital (DT722) and analogue (DT722-X18) models. The analogue model is particularly favoured by aftermarket service companies in the nuclear industry.

Both models feature strong stainless steel housings, providing protection against rough handling or accidental damage, and can withstand temperatures of up to 150°C.

Key features and benefits

  • The DT722’s digital electronic platform gives high-performance measurement with good RH accuracy and delivers reliable and consistent results even over changing ambient conditions.
  • The DT722-X18 analogue through-path measurement device offers excellent mechanical toughness with quick and easy field adjustment.
  • The robust housing provides IP65 (NEMA 4) ingress protection.

Michell Instruments

Michell Instruments is an international leader in high-precision sensing with over 35 years’ experience in the field, specialising in instrumentation for dew point, relative humidity and oxygen analysis. The company serves industries as diverse as petrochemical and pharmaceutical to power generation and food processing. The product range includes:

  • High-precision ceramic moisture sensors to measure trace moisture in process applications.
  • Relative humidity transmitters and sensors for use in HVAC applications, pharmaceutical storage and other production processes where controlled environmental conditions are crucial.
  • Humidity calibration systems and reference dew-point hygrometers enable customers to carry out the calibration of portable hygrometers and relative humidity instruments in-house, saving on downtime and costs.
  • Zirconia and thermo-paramagetic oxygen analysers for combustion optimisation, maintaining gas purity, controlling levels of CO2 in breweries and many other applications.
  • Condumax II Hydrocarbon dew point analysers ensure the quality of natural gas at custody transfer, prevent gas burner failure and the prolong the life of process equipment, helping companies save millions of dollars on repairs and downtime.
  • Trace moisture in hydrocarbon liquids analysers are available in explosion-proof and instrinsically safe versions and allow the continuous measurement of moisture content in a wide range of applications from transformer oil, petrochemical factions and pure hydrocarbons.
  • Process moisture analysers provide continuous on-line measurements of trace moisture in process gases and are available as explosion-proof, instrinsically safe and laboratory versions.

Michell Instruments has three manufacturing locations: Oosterhout, The Netherlands; Lyon, France and Ely, UK. The company has an extensive network of factory-trained application engineers, subsidiaries and distributors stretching across 56 countries.

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