MRG 508 / 511 Flex
(Mobile Network Analysers)

Overview
Mobile Network Analysers

Transportable measuring equipment. With storage of measurement values, complete with accessories and software.

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.
Transients
Transients refers to very fast, impulse, electrical transient effects that can cause a great deal of damage. In order to detect transients, high quality, digital power quality analysers with a high sampling rate must be used.
Reporting
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.
Measuring Devices Homepage
The web server for the measuring device provides a wide range of data in a user-friendly format. The user does not have to install any software on their PC; a conventional web browser is all that is required. The user enters the measuring device IP address in the browser's URL bar and the measuring devices homepage is displayed on the screen. In addition to the modern homepage, APPs are available for an extended range of functions.
Events
Events are short-term increases in voltage, dips in voltage, current swells or short-term interruptions (e.g. through bird strike or short circuits). UMG measuring devices can safely record and process events as of 20 ms and transients as of 50 μs. The causes of power quality variations can be identified and analysed in this way.
Jasic®
The user can use the graphical programming language Jasic® to add their own functions to a UMG measuring device. Up to seven freely configurable user programs can run in parallel, e.g. monitoring processes or notifications when reaching defined threshold values. In addition to the graphical programming option, the user is also free to program the source code directly in JASIC.
Janitza-Mobile-Analysatoren-MRG-604-605-508-511
Communication
  • Ethernet (TCP/IP) via patch cable
  • Modbus (RTU, TCP, Gateway)
  • HTTP (Homepage)
  • FTP (File transfer)
  • SNMP
  • TFTP
  • NTP (time synchronisation)
  • SMTP (email function)
  • DHCP
Interfaces
  • Ethernet 10/100 Base TX
Power Quality
  • Harmonics up to the 40th (MRG 604 / 508) or 63rd (MRG 605 / 511) harmonic
  • Interharmonics for U and I (MRG 605 / 511)
  • Distortion factorTHD-U / THD-I / TDD
  • Measurement of positive, negative and zero sequence component
  • Direction of rotation field
  • Voltage crest factor
 
  • Acquisition of short-term interruptions (> 20 ms)
  • Transient recorder (> 50 μs)
  • Starting currents (from 20 ms)
  • Unbalance
  • Flicker measurement per EN 61000-4-15 (only MRG 605 / 511)
  • Display of waveforms
Accuracy of Measurement
  • Current: 0.2 %
  • Voltage: 0.1 % (MRG 508 / 511) or 0.2 % (MRG 604 / 605)
Networks
  • TN, TT networks
  • IT network (only MRG 604 / 605)
  • 3 and 4-phase networks
  • Up to 4 single-phase networks
Network visualisation software
  • GridVis®-Basic (in the scope of supply)
PLC Functionality
  • Graphical programming
  • Jasic®-programming language
Areas of Application
  • High quality PQ analysis at class A level (IEC 61000-4-30)
  • Temporary measurement e.g. for the design of power factor correction systems
  • Analysis of electrical disturbances in the event of PQ problems
  • Fault analysis with power quality problems
  • High quality comparative measurement of energy measurement devices and meters
Features

Transportable measuring equipment. With storage of measurement values, complete with accessories and software.

Main Features
  • Monitoring of the power quality
  • Capturing of all power quality parameters (harmonics, short- term interruptions, asymmetries etc.)
  • Remote access via Ethernet and embedded web server
  • GridVis® PQ analysis software
  • Standard PQ reports: EN 50160 , IEEE519, ITIC, EN 61000-2-4
  • Cost centre report
  • Large 128/256 MB internal memory for storing measurement data
UMG-Messkoffer
MRG 508 / 511: User-friendly, colour graphical display with intuitive user guidance
  • High resolution graphics display
  • User-friendly, self-explanatory and intuitive operation
  • Clear and informative representation of online graphs and further power quality events
Fig-Colour-graphical-display-Example-Harmonics-analysis
Modern communications architecture via Ethernet
  • Ethernet interface and web server
  • Faster, better cost-optimised and more reliable communication system
  • High flexibility due to the use of open standards
Large measurement data memory
  • 128 or 256 MByte
  • Recording range of up to 1 year (MRG 604 / MRG 508) or up to 2 years (MRG 605 / MRG 511) depending on the recording configuration
  • Recording freely configurable
Scope of delivery for the MRG product range
  • Compact, robust plastic housing with measurement device and all connections
  • Supplementary description for each measurement device
  • Operation manual for each measurement device
  • CD with following content:    Programming software GridVis®-Basic    Functional description - GridVis®
  • Carry soft bag for accessories
  • Mains connection cable
  • 4 voltage taps with fuses (black)
  • 1 voltage tap with fuse (blue)
  • 4 voltage measurement cables
  • 1 measurement cable, blue (N)
  • 1 measurement cable, green / yellow (PE)
  • 8 current measurement cables
  • 1 Crossover patch cable, CAT5e
Fig-measurement-connection