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New and Improved 2-Wire Transmitter Completes Formidable Easidew Range

New and Improved 2-Wire Transmitter Completes Formidable Easidew Range

13 November 2006

Michell Instruments are delighted to announce they have up-graded their Easidew Transmitter. The Easidew 2-Wire Transmitter improves the already highly successful range of Easidew instruments that includes portable and on-line hygrometers, as well as dew point transmitters. The Easidew range was developed as a direct result of market demand for simple and affordable dew point measurement and has been an enormous success since the ranges launch in 2001. The newest addition to the range, Easidew 2-Wire is a low cost, rugged impedance dew-point transmitter for continuous measurement in compressed air or process gas.

The Easidew 2-Wire transmitter offers the customer many more new and improved features. The modified transmitter can now be connected in a 2-Wire loop configuration whilst maintaining complete backwards compatibility with all existing 3-Wire installations. This simplifies the introduction of the new design and the ongoing service requirements.

Another new feature of the transmitter is that output is configurable in ppm moisture content. The improved Easidew has powerful processing capability allowing for the first time the on-board calculation of other moisture units (ranges 0-100, 0-1000ppm and 0-3000ppm). The 2-Wire can also be sold with a new HDPE filter designed to show contamination for service ease which is <10um porosity and impermeable to liquids.

The 2-Wire transmitter also provides improved calibration data integrity, with a new design that includes improved software and firmware to protect calibration, even in the most extreme EMC/EMI fields. Application software also allows the user to configure output parameters, ranges and scaling.

The Easidew 2-Wire transmitter is designed for ease of use, incorporating all the features the user could want to make installation and operation as simple as possible. For the first time, dew point measurement is made as accessible as temperature and pressure with this fully configured, calibrated transmitter that can be instantly incorporated into your air or gas management and control system.

The key to the Easidew Transmitter’s performance is its sensor technology. Michell’s Advanced Ceramic Moisture Sensor is coupled with advanced microprocessor based measurement circuitry to produce a fully calibrated and interchangeable sensor transmitter. All calibration data is stored within the transmitter’s flash memory and so calibration exchange, or service can be effected in seconds, even by untrained personnel. The Easidew transmitter is simply disconnected, removed from its sampling block and replaced by a new fully calibrated unit. Furthermore, the Easidew transmitter forms the front-end of both the Easidew On-line and Portable hygrometers.

All products in the Easidew range use the Ceramic Moisture Sensor Advanced Technology and the same transmitter, meaning interchangeability is made simple. If a customer needs to monitor various points in the process, some with local display, others with direct mA feed to a cental control system, the Easidew range is ideal. The Easidew Portable Hygrometer allows local spot checks to be carried out when necessary, perhaps at the point of the air or process gas. Easidew On-line hygrometer provides continuous in-process measurement of gas dew point. In order to maintain traceability, the customer only needs to stock one sensor type for all products: the Easidew Transmitter.

Aside from all of the new features the Easidew 2-Wire tranmitter offers, it is also economical to purchase, install and operate. Installation costs are minimal because of the transmitters ruggedness and simplicity. On-going operating costs are low because of the transmitters stability and reliability. Only periodic re-certification is required to maintain traceability. Michell will even organise an exchange programme for the customer so that the process is never out of operation.

If you would like more information about Easidew 2-Wire Transmitter or any of the Michell products in the Easidew range, please contact us.

  • Process Sensing Technologies PST GmbH
    Max-Planck-Straße 14
    61381 Friedrichsdorf
    Germany / Europe
    Tel.:+49 (0)6172 5917-0
    Fax:+49 (0)6172 5917-99
    Web :
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