GE H201Ci-1 monitor

The HydranTM 201Ti is a small and easy to setup continuous Dissolved Gas-in-oil Analysis (DGA) monitor.

It provides the basic information used by IEEE® Standard C57.104 and can be used as an essential first line of defence for the transformers in your fleet to obtain advance warning of a failure condition and

minimize the risk of unplanned outages.

The 201Ti’s composite-gas sensor provides the world renown “Hydran gas value” using fuel cell

technology (described as fixed instruments - method 3 in the standard). It responds 100% to Hydrogen(general fault gas) and is also sensitive to Carbon Monoxide (overheated paper), Acetylene (arcing) and

Ethylene (overheated oil), thus covering all the main transformer failure root causes.

Because the monitoring unit mounts on a single valve and uses Dynamic Oil Sampling, there is no

need for a pump or extra piping to connect to different valves. Due to its uncomplicated features and

the easily understood information it provides, the 201Ti has been amongst the monitors of choice for

many years, with one of the largest installed base of any monitor.

With the latest Mark IV version, the Hydran 201Ti monitor has been completely overhauled with new

electronic boards and power supply to make it RoHS compliant, address any obsolescence issue and

further improve this time proven product.

It now offers additional features like:

• Improved sensor

• Modbus® protocol communication over isolated RS-485

• Local USB port to replace the RS-232 port no longer found on most field laptops

• Compatibility with GE’s acclaimed PerceptionTM Fleet software to download, trend and analyse data,like with any other GE DGA monitoring equipment

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