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Process analysers - .PDF file.

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Promet analysers - .PDF file.

Michell’s Promet IS process moisture analyser can be retrofitted in almost all existing AlOx or ceramic transmitter-based trace moisture or dew-point measuring analyser systems.

The Michell intrinsically safe ceramic moisture sensors, which form the basis of the Promet IS analyser, may be installed within the hazardous area directly into an existing sampling system with minimal wiring.

The Promet IS multi-channel format enables the control of up to four pressure compensated moisture-measurement channels within a single 19in sub-rack unit, to measure dew points as low as -100C.

Measurements of moisture in process gases and liquids can be easily combined in a single analyser system as the Promet IS channels for moisture in gas can be combined together with a product for moisture in liquid measurement – the Liquidew IS.

Each channel functions independently of the others so that maintenance can be carried out on one channel while the others continue to operate as normal – ideal in situations where redundancy is required for safety reasons.

The multi-channel format not only keeps the cost per channel to a minimum, but is also very simple to operate, with bright alphanumeric LED displays as well as temperature and pressure compensation.

Unit conversions from dew point to a range of alternative moisture content units allow the user complete flexibility to select their preferred unit of measurement.

The front-panel interface enables the user to scroll through the set up menus to easily configure the analyser to their own requirements.

Four user-adjustable alarm points and two analogue 4-20mA outputs are provided, as well as a digital RS485 RTU for connection to external devices.

The Promet IS can measure dew points as low as -100C and is calibrated and traceable to NPL and NIST.

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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