Model SDT-Ex Dewpoint Transmitter

By August 3, 2011News

Intrinsically safe dewpoint transmitter

Product details

The Shaw Moisture Meters Model SDT-Ex is a compact, 3 wire, 4 – 20 mA dewpoint transmitter designed to meet the stringent demands of industrial applications.

The Model SDT-Ex is certified intrinsically safe to ATEX: Ex II 1GD   Ex ia IIC T4   Ex iaD 20 T135°C   (-20°C ≤ Ta +60°C) and IECEx: Ex ia IIC T4  Ex iaD 20 T135°C  -20°C < Ta +60°C for use in hazardous areas using a signal isolator.

Incorporating advanced electronics, the Model SDT-Ex derives 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 (3,280 ft).

Utilising the ultra high capacitance SHAW sensing technology, various dewpoint 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 lbs/MMscf.

The unit is fully self contained within a robust housing, providing weatherproof protection to IP66/NEMA 4X.

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

Key features of Model SDT-Ex

  • 3 wire, 24 V, 4 – 20 mA dewpoint transmitter
  • Intrinsically safe to ATEX and IECEx standards
  • Overall range: -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
  • Output configurable in °C dewpoint, °F dewpoint, ppm(v), g/m³ and lbs/MMscf
  • Accuracy ±2 °C (±3.6 °F) dewpoint
  • Weatherproof rating IP66 – NEMA 4X
  • Open/short circuit detection
  • Linear 4 – 20 mA output signal
  • Self-contained, robust and reliable
  • Supplied with Calibration Certificate traceable to National & International Humidity Standards
SHAW SDT-Ex intrinsically safe 4-20 mA dewpoint transmitter, fully self contained within a robust housing, for industrial applications

Intrinsically safe

Certified intrinsically safe to ATEX and IECEx standards for use in hazardous areas using a signal isolator… (read more)

SHAW SDT-Ex dewpoint transmitter with autocal functionality, suitable for use in hazardous areas and industrial applications

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-Ex

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