Janitza UMG 512-PRO Class A Power Quality Analyser


The Janitza UMG 512-PRO is a Class A device suitable for the monitoring of power quality in accordance with current standards EN 50160, IEEE519 or EN 61000-2-4

Features include:
  • Harmonic monitoring up to the 63rd harmonic
  • Class A according to IEC 61000-4-30
  • Residual current measurement
  • Flicker measurement
  • Events and transients
  • Programming options (Jasic & Apps)
  • Power quality analysis onboard
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Class A measurement:

Measuring devices in class A are certified to the IEC 61000-4-30 standard.  This standard provides detailed specifications that a mains analyser must meet so that the results can also be consulted in case of disputes. The standard defines the parameters, suitable measurement methods, accuracy and bandwidths. This makes it possible to easily reproduce and compare results.

Power quality

Reliable operation of modern plants and systems always demands a high degree of supply reliability and good power quality. UMG measuring devices reliably record, analyse and document all interferences such as harmonics, unbalance, transients, voltage dips, voltage swells, flickers, phase shifts and reactive power.

Residual Current Monitoring (RCM)

Powerful RCM residual current monitoring already detects leakage currents in their initial stages before they cause system failures or even fires. It is already integrated in certain UMG measuring devices. The measuring current transformer that is required can be installed manually at a later date if required. Continuous RCM monitoring increases the system safety and availability significantly. In specific applications such as the data centre, residual current monitoring is essential due to the high availability requirements.


The Ethernet Modbus gateway can be used to easily include the Modbus RTU devices that are connected to the master device as slaves in an Ethernet architecture. This is also possible via a Modbus RTU interface for devices with identical file formats and matching function codes.


BACnet is one of the most important communication standards for building technology, mainly due to its compatibility with the most diverse hardware and its uniform communication with devices from various manufacturers. As soon as a UMG measuring device has received its BACnet ID and is integrated into the network, the system recognises it and displays it in the browser. This makes configuration very easy.


Download the Janitza UMG 512-PRO brochure here:

Download the 2021 Janitza Product Catalogue here:

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