SDT-Ex Intrinsically Safe Dew Point Transmitter

Dew point transmitter for compressed air and process gases

Product details

Intrinsically safe dewpoint transmitter, reliable and accurate, designed to meet the stringent demands of industrial applications. Suitable for the continuous measurement of trace moisture in dry compressed air and industrial process gases. Ideal for hydrocarbon, petrochemical and hydrogen applications.

Compact, 3 wire, 4-20 mA, loop powered dewpoint transmitter. Certified intrinsically safe to ATEX: Ex II 1 GD Ex ia IIC T4 Ga (-20 °C ≤ Ta ≤ +60 °C) and IECEx: Ex ia IIIC T200135 °C Da (-20 °C ≤ Ta ≤ +60 °C) for use in hazardous areas when using a signal isolator.

The SDT-Ex incorporates advanced electronics, deriving its power from a 7-28 V DC non-isolated power source. Configurable to output a linear, isolated, 4-20 mA signal. This intrinsically safe dewpoint transmitter will not suffer any loss of signal when sited up to 1,000 metres (3,280 ft) away from the display.

Utilising the ultra high capacitance SHAW moisture 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 to display in °C dewpoint, °F dewpoint, ppm(V), g/m³ and lb/MMSCF.

Fully self-contained within a robust housing to provide weatherproof protection rated IP66 NEMA 4X. The SDT-Ex intrinsically safe dewpoint transmitter is supplied ready to use with a Certificate of Calibration traceable to National & International Humidity Standards, instruction manual and two metres (6.56 ft) of cable.

Key features of the SDT-Ex dew point transmitter

  • Shaw brand accurate held hygrometer
    3 wire, 24 V, 4-20 mA dewpoint transmitter
  • Shaw brand accurate held hygrometer
    Certified intrinsically safe to ATEX and IECEx standards
  • Shaw brand accurate held hygrometer
    Overall range: -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
  • 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 of ±2 °C (±3.6 °F) dewpoint
  • Shaw brand accurate held hygrometer
    Weatherproof rating IP66 NEMA 4X
  • 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
    Self-contained, robust and reliable
  • Shaw brand accurate held hygrometer
    Supplied with Certificate of Calibration traceable to National & International Humidity Standards (NPL)
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 when using a signal isolator… (read more)

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

AutoCal

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

Related products and accessories for the SDT-Ex

Product support for the SDT-Ex

SDT-Ex Dewpoint Transmitter Specification Sheet

SHAW SDT-Ex Dewpoint Transmitter Instruction Manual

SDT-Ex Dewpoint Transmitter Instruction Manual

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