Both dewpoint transmitters, the Model SDT and SDT-Ex utilise the industry standard, ultra high capacitance SHAW moisture sensing technology. Various dewpoint ranges are available covering an overall range from -100 °C to +20 °C dewpoint (-148 °F to +68 °F). The 4 – 20 mA output is configurable in °C dewpoint, °F dewpoint, ppm(v), g/m³ and lb/MMSCF.
Incorporating advanced electronics, power can be derived from 7 – 28 V DC non isolated power source and configured to output a linear, isolated, 4 – 20 mA signal for distances up to 1,000 metres. The mechanics of the Model SDT and SDT-Ex dewpoint transmitters have been designed to cope with extreme environmental conditions.
Designed with the operator in mind, for reliable and accurate measurements, the SHAW Model SDT and SDT-Ex are extremely easy to install and operate, requiring little or no maintenance.