Model ADHT - Dewpoint Transmitter

  • 4 Wire, 24V, 4-20mA Dewpoint Transmitter
  • Various Ranges: Overall Range -110ºC to +20ºC Dewpoint
  • Accuracy ±2ºC Dewpoint
  • Weatherproof Rating IP65
  • Maximum Cable Length 1000m
  • Open/Short Circuit Detection
  • I.S. Option Available
  • Supplied with Calibration Certificate Traceable to National & International Humidity Standards
The Alpha Moisture Systems' Model ADHT is a 4 wire, 24V powered 4-20mA Dewpoint transmitter. The unit is fully self contained in a robust casing with weatherproof protection to IP65, making it ideal for use in either industrial or laboratory environments.

Incorporated in the Model ADHT is advanced electronics, which can derive its power from 18-30V dc non-isolated power source and is configured to output a linear, isolated, 4-20mA signal for the chosen range.

Various Dewpoint ranges are available covering an overall range from -110ºC to +20ºC Dewpoint.

The 4-20mA output signal can be transmitted up to 1000 metres via a twisted pair cable to either SCADA or DCS.

The Model ADHT unit can be installed directly in a gas pipeline or it can be placed in a dedicated sampling cell.

(For full details please request specification sheet Model ADHT)

Dewpoint Transmitters

Model ADHT-Ex | Model ADHT



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