Hydran M2

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The Hydran M2 is a compact affordable all-in-one on-line transformer-monitoring device. While permanently mounted on the transformer, The Hydran M2 will alert personnel to developing fault conditions. In addition to providing a composite value of various fault gases (in ppm) and the moisture in oil reading (%RH and ppm), the Hydran M2 can also encompass on-board transformer mathematical models based on IEEE® and IEC® standards to provide further information on the performance of the transformer.
Medium to large sized transformers.
Lower risk and/or consequence of failure.

Transmission transformers.
Significant step up from manual oil sampling.

  • Real-time single composite fault-gas and moisture in-oil measurement system.
  • Option to integrate additional sensors (temp, load, …).
  • Option to process transformer mathematical models based on IEEE/IEC standards and only transmit key results.
  • Easy to install on a single valve.
  • No moving parts, no pumps and no extra piping required.
  • No field calibration required.
  • Local and remote alarms set at pre defined levels.


  • Composite gas sensor which responds 100% to Hydrogen(general gas fault) and is sensitive to Carbon Dioxide (overheated paper insulation).
  • RS-485 output as standard.
  • Choice of up to 4 extra input/output modules.
  • Wide range of communication methods and protocols.
  • Easily upgradeable to models package.
  • Vacuum-resistant gas extraction membrane.
  • Built in temperature condition system.
  • Full system self test and self-diagnostics.
  • Logging of data and significant events up to a year.
  • User-friendly client/server graphical user interface software.
  • TCP/IP, copper or fibre, as an option.
1 reviews
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