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Michell Instruments has introduced the PMA2030, which uses the quartz-crystal microbalance technique for moisture measurement in gases.

The PMA2030 quartz crystal analyser is an ideal quality-monitoring tool for air separators, industrial and high-purity gas production processes.

The analyser provides reliable, fast and accurate measurement at trace moisture levels (ppbv and ppmv).

The quartz crystal sensor of the PMA2030 will give a 63 per cent response to a step change in moisture in less than two minutes (95 per cent in less than five minutes).

The wide operating range – from 0.1 to 2000ppmV – coupled with the fast response of the PMA2030 helps to monitor and protect processes to avoid damage to tools or finished products by enabling users to react quickly to fluctuations in moisture.

The new analyser provides measurements that can be trusted throughout its operational life.

Michell’s advanced quartz crystal technology gives a reproducible and linear response to changes in moisture content.

This allows the PMA2030 to deliver accuracy of five per cent of measured value in the range 0.5 to 500ppmV.

Its automatic calibration system, using an internal reference source, guarantees the sensor’s integrity and accuracy by cancelling out the effects of contamination.

The PMA2030 is also easy to use as its touch-screen panel provides a user-friendly and intuitive interface.

The live measurement data and graph of the session are always on view and can be downloaded to a conventional external USB storage device for traceability or analysis.

The PMA2030 analyser enhances the range of moisture sensing technologies currently available from Michell.

Along with the metal oxide ceramic sensor, chilled mirror and capacitive technologies, the quartz crystal microbalance enables the customer to benefit from flexibility of choice between these complementary humidity-measurement technologies.

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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