UMG 96RM - E
(Power Analyser with Ethernet and RCM)

Power analyser with Ethernet and RCM

Power analyser with differential current measurement – unique in its class! UMG 96RM-E – energy, universal and differential current measurement (RCM) in one device

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.
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.
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.
Ethernet Modbus Gateway
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 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.

Communications options: Ethernet, Profibus, Modbus, M-Bus
  • Modbus (RTU, TCP, Gateway)
  • TCP/IP
  • HTTP (configurable Homepage)
  • FTP (file transfer)
  • SNMP
  • NTP (time synchronisation)
  • SMTP (email function)
  • DHCP
  • SNTP
  • TFTP
  • BACnet (optional)

  • RS485
  • Ethernet

Power Quality
  • Harmonics up to 40th harmonic
  • Distortion factorTHD-U /THD-I

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

Temperature measurement
  • PT100, PT1000, KTY83, KTY84

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

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

Measured data memory (UMG 96RM-CBM, UMG 96RM-P)
  • 256 MB Flash

2 digital outputs (UMG 96)
  • Pulse output kWh / kvarh
  • Switch output
  • Threshold value output
  • Logic output
  • Remote via Modbus / Profibus

3 digital inputs/outputs
  • Usable as either inputs or outputs

2 analogue inputs
  • Analogue, temperature or residual current input (RCM)

Areas of Application
  • Measurement, monitoring and checking of electrical characteristics in energy distribution systems
  • Recording of load profiles in energy management systems (e.g. ISO 50001)
  • Acquisition of the energy consumption for cost centre analysis
  • Measured value transducer for building management systems or PLC (Modbus)
  • Monitoring of power quality characteristics, e.g. harmonics up to 40th harmonic
  • Residual current monitoring (RCM)


Power analyser with differential current measurement – unique in its class! UMG 96RM-E – energy, universal and differential current measurement (RCM) in one device.

Universal meter
  • Operating current monitoring for general electrical parameters
  • High transparency through a multi-stage and scalable measurement system in the field of energy measurement
  • Acquisition of events through continuous measurement with 200 ms high resolution
RCM device
  • 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
Energy measurement device
  • Continuous acquisition of the energy data and load profiles
  • Essential both in relation to energy efficiency and for the safe design of power distribution systems
Harmonics analyser / event recorder
  • Analysis of individual harmonics for current and voltage
  • Prevention of production downtimes
  • Significantly longer service life for equipment
  • Rapid identification and analysis of power quality fluctuations by means of user-friendly tools (GridVis®)
Janitza-UMG 96-RM-E-ku-Ereignisrekorder
Extensive selection of tariffs
  • 7 tariffs each for effective energy (consumption, delivery and without backstop)
  • 7 tariffs each for reactive energy (inductive, capacitive and without backstop)
  • 7 tariffs for apparent energy
  • L1, L2 and L3, for each phase
Highest possible degree of reliability
  • Continuous leakage current measurement
  • Historical data: Long-term monitoring of the residual current allows changes to be identified in good time, e.g. insulation faults
  • Time characteristics: Recognition of time relationships
  • Prevention of neutral conductor carryover
  • RCM threshold values can be optimized for each individual case: Fixed, dynamic and stepped RCM threshold value
  • Monitoring of the CGP (central ground point) and the sub- distribution panels
Analysis of fault current events
  • Event list with time stamp and values
  • Presentation of fault currents with characteristic and duration
  • Reproduction of phase currents during the fault current surge
  • Presentation of the phase voltages during the fault current surge
Analysis of the harmonic fault current components
  • Frequencies of the fault currents (fault type)
  • Current peaks of the individual frequency components in A and %
  • Harmonics analysis up to 40th harmonic
  • Maximum values with real-time bar display
Digital IOs
  • Extensive configuration of IOs for intelligent integration, alarm and control tasks
Ethernet (TCP/IP)- / Homepage- / Ethernet-Modbus gateway functionality
  • Simple integration into the network
  • More rapid and reliable data transfer
  • Modern homepage
  • World-wide access to measured values by means of standard web browsers via the device's inbuilt homepage
  • Access to measurement data via various channels
  • Reliable saving of measurement data possible over a very long periods of time in the 256 MByte measurement data memory
  • Connection of Modbus slave devices via Ethernet-Modbus gateway
Measuring device homepage
  • Webserver on the measuring device, i.e. device's own homepage
  • Remote operation of the device display via the homepage
  • Comprehensive measurement data incl.PQ
  • Online and historic data available directly via the homepage
  • Waveform representation of current and voltage
Dimension Diagrams(in mm)
Janitza-UMG 20604 Frontal Seite
Typical Connections