Power quality

  • Continuous power quality monitoring (e.g. EN 50160)
  • Harmonics analysis up to the 63rd harmonic, even and odd
  • Interharmonics
  • Distortion factorTHD-U /THD-I
  • Measurement of positive, negative and zero sequence component
  • Flicker measurement in accordance with DIN EN 61000-4-15
  • Logging and storage of transients (> 50 μs)
  • Recording of short-term interruptions (> 20 ms)
  • Monitoring start-up processes
  • Recorder for limit value events


  • 4 voltage and 4 current measurement inputs
  • Logging and digitalisation of effective values (true RMS) of currents and voltages (15 – 440 Hz)
  • Continuous sampling of the voltage and current measurement inputs at 20 kHz
  • Recording of over 2,000 measured values per measurement cycle (200 ms)
  • Stipulation of nominal current possible for measuring current events
  • Fourth current measurement input is suitable for measuring the current in the neutral or PE conductor or for measuring any potential difference between N and PE
  • Large measured data memory (memory range = 5 000 000 measured values)
  • Simple remote polling of measured data via the device's own homepage
  • All interfaces can be used simultaneously
  • Up to 4 ports can be accessed simultaneously

Impressive reporting with GridVis®

  • Automatic generation and sending of power quality reports
  • Power quality reports per EN 50160, EN 61000-2-4, IEEE519
  • Illustration of the ITI-(CBEMA) curve
  • Freely definable time planning for the generation of reports

Modern communications architecture via Ethernet

  • Rapid, cost-optimised and reliable communication through integration into an existing Ethernet architecture
  • Integration in PLC systems and building management systems
  • High flexibility due to the use of open standards
  • Simultaneous polling of interfaces possible

Ethernet-Modbus gateway and high-speed-Modbus

  • Simple integration of Modbus-RTU devices into an Ethernet architecture through the Modbus gateway function
  • Integration of devices with identical file formats and matching function codes possible via Modbus RTU interface
  • Fast and reliable data exchange via RS485 interface
  • Speed up to 921.6 kB/s

Graphical programming

  • Comprehensive programming options on the device, 7 programs simultaneously (PLC functionality)
  • Jasic® source code programming
  • Functional expansions far beyond pure measurement
  • Complete APPs from the Janitza library

Convenient home page and email functions

  • Information can be received conveniently by email and via the device homepage
  • Access to powerful device homepage via web browser
  • Online data, historical data, graphs, events and much more, is available direct from the homepage

Large measurement data memory

  • 128 MByte
  • 5.000.000 saved values
  • Recording range up to 2 years
  • Recording freely configurable by the user

Device homepage

Assessment available at all times

Each measurement device has an integrated web server, which has a separate homepage. The measurement device can be operated in the same way via its homepage as with the device display.

Furthermore, extensive current and historic measurement data, including the power quality analysis, can also be called up. An advantage of the device homepage is the constant availability of the measurement data – without prior software installation.

The user can immediately obtain an overview of all energy data. The device homepage can be displayed on any end device and will be adapted to suit the device functions (Responsive Design).

Simple operation is possible thanks to the uniform design of the GridVis® visualisation software and the device homepage.

Your benefits:

  • Access to powerful device homepage via web browser
  • Constant availability of the measurement data
  • No software installation necessary
  • Online data, historical data etc. can be called up directly via the device homepage
  • Function expansion possible through APPs
  • Remote operation of the device display via the homepage
  • Integrated PQ watchdog
  • Hyperlinks deliver more detailed information
  • Integrated measured value monitor
  • Overview of events and transients in the network
  • Convenient selection of the calculation mode for displaying the measurement data per standard IEC 61000-2-4 or EN 50160 (Applies to UMG 605-PRO and UMG 512-PRO)