Shaw Model SDT-Ex Intrinsically Safe Dewpoint Transmitter



Shaw Ex Intrinsically Safe Dewpoint Transmitter

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 II I GD Ex ia IIC T4 Ex ia D20 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 a 7 – 28 V DC non-isolated power source and is configured to output a linear, isolated, 4 – 20 mA signal for distances up to 1000 meters (3280 ft).

  • 3 wire, 24 V, 4 – 20 mA dewpoint transmitter
  • Intrinsically safe ATEX II I GD Ex ia IIC T4
  • Overall range -100 °C to +20 °C 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 Standard



4-20 mA, ATEX



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