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The S8000RS high-precision dew-point hygrometer from Michell Instruments allows furnace operators to achieve high standards of finishes and quality of metal products at lower annealing temperatures.

The hygrometer uses chilled-mirror technology, which measures the actual formation of moisture or frost on a temperature-controlled mirror, rather than relying on calculated values. This makes it the most reliable method of measuring dew point.

The S8000RS’s advanced dual-optics system detects minute changes in moisture condensed on the mirror surface, resulting in high sensitivity (±0.01°C) when making measurements at low levels of moisture content.

Key features and specifications

  • The S8000RS has a measurement range of -80°Cdp (or -90°Cdp depending on the model) to 20°Cdp.
  • The hygrometer has an intuitive interface; it offers user-selectable measurement units and has three analogue outputs as standard.
  • The S8000RS also features internal data logging to an SD card and a USB connection.
  • The instrument is supplied with a traceable calibration as standard; optional UKAS-accredited calibration is available.


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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