Optimus™ DGA Monitor OPT100

The world’s first maintenance-free multi-gas DGA monitor now comes with the groundbreaking, robustly reliable  total gas pressure method for detecting ambient air leaks into your sealed power transformer. That’s robust technology enabled by Vaisala science — that’s Optimus™ OPT100.

No consumables of any kind required. 

  • No carrier or calibration gases to monitor or replace
  • No internal column or measurement components to replace
  • No fixed filters, filter wheels, membranes or capillary tubes to repair or replace

Patented. Trusted. Reliable.

Ensure your power transformer stays operational longer. OPT100 brings unmatched long-term stability, reliability and measurement performance for detection of any formation of fault gases. It is trusted for its patented infrared  measurement of DGA gases, unique vacuum gas extraction technology and its groundbreaking total gas pressure measurement to detect air ingress into a sealed transformer tank. 

A word from our customers

 “Over two years after installation we have had no problems with the equipment at all – no user intervention and no consumables have ever been needed.”
- Eduardo Briosso, Asset Maintenance Manager at CTM.

“We have compared the data from the OPT100 with our third-party professional offshore testing report and it has proven to be very accurate, so we know we can rely on its performance.”
- A person in charge at Dalian Company.

“The OPT100 gives us the ability to track any disturbance that may occur and extend the lifetime of our transformer, as well as reducing the possibility of any unplanned outages.”
- Keith Black, System Performance Senior Engineer at Scottish Power.

Get smart

  • Guard against the harmful effects of oxygen on your transformer — download our new White Paper
  • What makes our vacuum gas extraction and IR technology work — watch the video
  • Enjoy ease of use with the sleek web-based UI — watch the video
  • Ships fully assembled for quick installation — watch the Quick Start 6-step Guide


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Key Benefits

Works in the harshest environments
Robust performance. That’s Optimus™ OPT100. Stainless steel pipes, IP66-rated housing, temperature controlled gas and oil handling, magnetic pump and valves. With no consumables to service or replace, Optimus™ OPT100 simply works – from the arctic to the tropics.
Intelligent and hassle-free
Integrated web UI. That’s Optimus™ OPT100. No need for additional software. Its field-savvy design makes installation quick — just connect oil pipes, power it up and connect to the UI, and you’re set. What’s more, self-diagnostics allow the monitor to restart its operation automatically after a power cut.
Peace of mind
No false alarms. That’s Optimus™ OPT100. Its unique auto-calibration ensures long-term stable online measurement. No recalibration at factory is needed.
Now with DC power option
Available as an option, the DC powered Optimus complies with the same IEC61010 safety certification and comes with the same level of surge protection as the AC model.

Watch the video

Maintenance free monitoring with the Vaisala Optimus™ OPT100 DGA

Product Resources

Näkymä sähköverkosta

Understanding the uncertainties of DGA monitoring

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DGA monitor online installation course

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Improved DGA Monitoring — Measuring Total Gas Pressure

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Your most pressing questions related to moisture in transformer oil

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What does total lightning mean anyway?

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Customer Stories