Power quality

  • Harmonics analysis up to the 63rd harmonic, even / odd (U, I, P, Q)
  • Interharmonics (U, I)
  • Distortion factor THD-U / THD-I / TDD
  • Measurement of positive, negative and zero sequence component
  • Unbalance
  • Direction of rotation field
  • Voltage crest factor
  • Flicker measurement in accordance with DIN EN 61000-4-15
  • Logging and storage of transients (> 39 µs)
  • Short-term interruptions (> 10 ms)
  • Monitoring start-up processes

High quality measurement

  • Constant true RMS measurement
  • Measurement process in accordance with IEC 61000-4-30
  • Certified accuracy of measurement according to class A
  • Continuous sampling of the voltage and current measurement inputs at 25,6 kHz
  • 512 measurement points per period
  • Recording of over 2,000 measured values per measurement cycle
  • Accuracy of active energy measurement: Class 0.2S
  • Fast measurement even enables the logging of rapid transients from 39 µs
  • Logging of currents and voltages (15 – 440 Hz)

User-friendly, colour graphical display with intuitive user guidance

  • High resolution colour graphical display 320 x 240, 256 colours, 6 buttons
  • User-friendly, self-explanatory and intuitive operation
  • Backlight for optimum reading, even in darker environments
  • Illustration of measured values in numeric form, as a bar graph or line graph
  • Clear and informative representation of online graphs and power quality events
  • Multilingual: German, English, Russian, Spanish, Chinese, French, Turkish ...

RCM (Residual Current Monitoring)

  • Continuous monitoring of residual currents (Residual Current Monitor, RCM)
  • Alarming in case a preset threshold fault current reached
  • Near-realtime reactions for triggering countermeasures
  • Permanent RCM measurement for systems in permanent operation without the opportunity to switch off
  • Ideal for the central earthing point in TN-S systems

BACnet protocol for building communication

  • Optimal interoperability between devices from various manufacturers
  • Predefined BIBBs (BACnet Interoperability Building Block)
  • BACnet is optionally available with UMG 512-PRO
  • UMG 512-PRO supports the device type B-SA with the BIBBs DS-RP-B and DS-WP-B
  • Furthermore, the BIBBs DS-COV-B and DM-UTC-B are also supported

Comprehensive communication and connection possibilities

  • 4 voltage and 6 current measurement inputs
  • 2 digital inputs, e.g. as data logger for S0 meter
  • 2 digital outputs for alarm message or e.g. for connection to a BMS or PLC
  • Free name assignment for the digital IOs, e.g. if used as data logger
  • Modbus
  • Profibus
  • Ethernet (TCP/IP)
  • Digital IOs
  • BACnet (optional)
  • Configurable Firewall


Modern communications architecture via Ethernet

  • Simple integration in an Ethernet network
  • Reliable and cost-optimised establishment of communication
  • Ideal for Master-Slave structures
  • High flexibility due to the use of open standards
  • Integration in PLC systems and BMS through additional interfaces
  • Various IP protocols: SNMP, ICMP (Ping), NTP, FTP …
  • Up to 4 ports simultaneous

Programming / PLC functionality

  • Further processing of the measurement data in the measuring device (local intelligence)
  • Monitoring and alarm functions simple to program
  • Sustainable functional expansions far beyond pure measurement
  • Comprehensive programming options with Jasic® source code programming
  • Graphical programming
  • Complete APPs from the Janitza library

Large measurement data memory

  • 256 MB data memory
  • Memory range up to 2 years (configuration-dependent)
  • Individually configurable recordings
  • Recording averaging times can be freely selected
  • PQ recordings template preconfigured for conventional standards (e.g. EN 50160)
  • User-defined memory segmenting possible

Powerful alarm management

  • Information available immediately by email
  • Inform maintenance personnel via the powerful device homepage
  • Via digital outputs, Modbus addresses, GridVis® software
  • Programming via Jasic® or graphical programming
  • Further alarm management functions via GridVis®-Service alarm management

Peak load representation and peak load management

  • Illustration of the 3 highest monthly power peaks on the LCD display (P, Q, S)
  • Rolling bar chart representation of the peak power values over 3 years on the LCD display (P, Q, S)
  • Plain text representation on the LCD display (P)

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)

GridVis®-Basic power quality analysis software

  • Multilingual
  • Manual read-out of the measuring devices
  • Manual report generation (power quality and energy consumption reports)
  • Comprehensive PQ analysis with individual graphs, Online graphs, Historic graphs, Graph sets
  • Integrated databases (Janitza DB, Derby DB)
  • Graphical programming
  • Topology views
  • High memory range

Certified quality through independent institutes

  • ISO 9001
  • Energy management certified according to ISO 50001
  • Class A certificate (IEC 61000-4-30)
  • UL certificate
  • EMC-tested product