UMG 605
(Power Analyzer for DIN RAIL)

Power quality analysers

Power quality analysers for DIN rails - continuous monitoring of the power quality e.g. EN 50160.

Harmonics occur due to operating equipment with a non-linear characteristic, e.g. transformers used in saturation, energy saving bulbs, frequency converters and power electronics. They cause a load on the mains due to additional currents and can affect or even destroy operating equipment. This mains feedback can be detected and documented using power quality analysers.
Alarm Management
The alarm management feature in GridVis® monitors all measurement parameters captured by the UMG measuring devices. It comprises escalation management, a logbook function and user management for individual notifications by e-mail, dialogue box on the monitor, etc.In addition to monitoring effective values, short term interruptions and transients, as well as communication with the measuring devices can also be monitored.
Flicker refers to the subjective impression of visibly noticeable brightness fluctuations, caused by a temporal change to the light density or the spectral distribution. The cause is voltage variations. As of a specific threshold value, flicker occurrences become disturbing and harmful to health under certain circumstances. The standard DIN EN 61000-4-15 controls the details.
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.
A notification by e-mail is the ideal aid for alarm and escalation management for the UMG measuring devices and the GridVis® software. Recipients can therefore be informed of the details of an event immediately.
Many UMG measuring devices have their own memory containing typical recording ranges of up to 2 years. Recording is freely configurable. A 128 megabyte memory can record around 5,000,000 values.

  • Profibus (DP/V0)
  • Modbus (RTU, TCP, Gateway)
  • TCP/IP
  • BACnet (optional)
  • HTTP (configurable homepage)
  • FTP (file-transfer)
  • TFTP
  • NTP (time synchronisation)
  • SMTP (E-Mail-Funktion)
  • DHCP
  • SNMP

  • Ethernet
  • RS232
  • RS485 (Modbus)
  • RS485 (DSUB9) for Profibus

Power Quality
  • Harmonics up to the 63rd harmonic direct / indirect
  • Flicker measurement
  • Short-term interruptions (> 20 ms)
  • Transient recorder (> 50 μs)
  • Starting currents
  • Unbalance
  • Half wave RMS recordings (up to 4.5 min.)

Accuracy of Measurement
  • Energy: Class 0.5 (... / 5 A)
  • Current: 0.2 %
  • Voltage: 0.2 %

Temperature Measurement
  • PT100, PT1000, KTY83, KTY84

  • IT, TN, TT networks
  • 3 and 4-phase networks
  • Up to 4 single-phase networks

Network Visualisation Software
  • GridVis®-Basic (in the scope of supply)

Peak demand management (optional)
  • Up to 64 switch-off stages

Programming language
  • Jasic®

2 Digital Inputs
  • Pulse input
  • Logic input
  • State monitoring
  • HT / LT switching
  • Emax resetting

2 Digital Outputs
  • Pulse output kWh / kvarh
  • Switch output
  • Threshold value output
  • Emax output
  • Logic output
(expandable via external I/O modules)

Areas of Application
  • Power quality monitoring
  • Ethernet gateway for subordinate measurement points
  • Analysis of electrical disturbances in the event of network problems
  • Report generator for various power quality standards
  • Control tasks e.g. depending on measured value or limit values being reached
  • MMeasured value transducer for building management systems or PLC

Measured Data Memory
  • 128 MByte Flash


Power quality analysers for DIN rails - continuous monitoring of the power quality e.g. EN 50160.

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
  • 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
Powerful alarm management
  • Can be programmed via the graphic programming or Jasic® source code
  • All measured values can be used
  • Can be arbitrarily, mathematically processed
  • Individual forwarding via email sending, switching of digital outputs, writing to Modbus addresses etc.
  • Watchdog-APP
  • Further alarm management functions via GridVis®-Service alarm management
  • Fast and reliable data exchange via RS485 interface
  • Speed up to 921.6 kB/s
Graphical Jasic® Programming (PLC functionality)
  • 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
Dimension Diagrams(in mm)
Janitza-UMG 20604 Frontal Seite
Typical Connections