Model SDT Dewpoint Transmitter

4 – 20 mA Dewpoint Transmitter

Product details

The Shaw Moisture Meters Model SDT is a compact, 2 wire, 4 – 20 mA dew point transmitter designed to meet the stringent demands of industrial applications.

Utilising the ultra high capacitance SHAW sensing technology, various dew point ranges are available covering an overall range from -100 °C to +20 °C (-148 °F to +68 °F) dewpoint. The 4 – 20 mA output is configurable in °C dewpoint, °F dewpoint, ppm(v), g/m³ and lb/MMSCF.

Incorporating advanced electronics, the Model SDT can derive its power from 7 – 28 V DC non-isolated power source and is configured to output a linear, isolated, 4 – 20 mA signal for distances up to 1,000 metres.

Weighing in at only 175 g, the Model SDT is light enough to be supported by its connection direct into the pipeline or can be placed in a dedicated sample cell. The unit is fully self contained within a robust housing providing weatherproof protection to IP66/NEMA 4.

The Model SDT is supplied ready to use, with a Calibration Certificate traceable to National and International Humidity Standards, instruction manual and two metres (6.56 ft) of cable.

Key features of Model SDT

  • Shaw brand accurate held hygrometer
    2 wire, 24 V, 4 -20 mA dewpoint transmitter
  • Shaw brand accurate held hygrometer
    Various ranges: overall range -100 °C to +20 °C dewpoint (-148 °F to +68 °F)
  • Shaw brand accurate held hygrometer
    Output configurable in °C dewpoint, °F dewpoint, ppm(v), g/m³ and lb/MMSCF
  • Shaw brand accurate held hygrometer
    Accuracy ±2 °C dewpoint (±3.6 °F)
  • Shaw brand accurate held hygrometer
    Weatherproof rating IP66/NEMA 4
  • Shaw brand accurate held hygrometer
    Maximum cable length 1,000 m (3,281 ft)
  • Shaw brand accurate held hygrometer
    Open/short circuit detection
  • Shaw brand accurate held hygrometer
    Linear 4 – 20 mA output signal
  • Shaw brand accurate held hygrometer
    Signal output up to 1,000 metres
  • Shaw brand accurate held hygrometer
    Self-contained, robust and reliable
  • Shaw brand accurate held hygrometer
    Weighs only 175 g (0.385 lbs)
  • Shaw brand accurate held hygrometer
    Supplied with a Calibration Certificate traceable to National & International Humidity Standards
Shaw SDT 4-20 mA dewpoint transmitter,process gas compressed air

Various ranges

Various dewpoint ranges are available covering an overall range from -100 °C to +20 °C (-148 °F to +68 °F) dewpoint.

AutoCal function on SDT dewpoint transmitter

Automatic calibration

The most important and unique feature of the SHAW system is the automatic calibration facility… (read more)

Related products and accessories for Model SDT

Product support for Model SDT

Video help for Model SDT

Coming soon…

Downloads for Model SDT

Model SDT Specification Sheet

Model SDT Instruction Manual

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