Michell Pura trace moisture transmitters

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Michell’s Pura range of trace moisture transmitters was developed for applications where purity of gases is of critical importance and even trace amounts of moisture are considered to be a contaminant.

Based on Michell’s ceramic impedance moisture sensor, the Pura is capable of measuring dewpoints between -120 and -40°C dewpoint, or, in terms of absolute moisture content, 1 ppbV to 126.71 ppmV. This focus towards drier measurements optimises the performance for applications such as semiconductor manufacture, where the near-total absence of moisture is crucial to quality.

The Pura is simple to install and easy to operate. An optional display is also available to create a highly accurate, yet cost-effective hygrometer. Routine maintenance is also simple as the Pura is also included in the Michell Instruments sensor exchange program. Effectively providing a lifetime warranty, the exchange program allows users to ensure their sensor is always calibrated, while keeping their process running.

As well as semiconductor manufacturing, the Pura range is also widely used in fibre-optic production, optical coating processes and industrial gas manufacturing.