Qualitrol Serveron® TM1 Single Gas On-line Dissolved Gas Monitor

The Serveron® Model TM1 offers a breakthrough price/ performance point in on-line DGA. For the first time, the benefits of on-line condition monitoring can be realized across the distribution transformer fleet. The Serveron® TM1 continuously monitors and reports hydrogen PPM Levels and can be programmed to alarm based on PPM Levels and/or Rate of Change (ROC), warning operators of potentially disruptive transformer faults and pending failures.


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  • Responds only to Hydrogen: no cross interference or composite measurements.
  • Rapid step change response facilitated by active oil circulation over the sensor itself.
  • Single Valve mount
  • Low Cost of Ownership:
  • No Membrane – directly immersed sensor
  • No Sensor replacement or recalibration required for life of monitor
  • No Consumables or routine service required


  • Moisture-in-oil and oil temperature measurement.
  • Qualitrol provides utilities with the following services for our on-line DGA monitors.
  • Turnkey Installation Services including Serveron® TM1 deployment and TM View software user training
  • Serveron® Monitoring Service (SMS) offers the convenience of secure 24×7 access to all of your Serveron® DGA transformer monitor data from any Internet-connected Windows PC running our SMS software.
  • A variety of service plans to guarantee monitor operation over the long term


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