(Multifunction power analyser)

Multifunction power analyser

The UMG 96S is a measurement instrument of the newest generation which is suitable for measuring, recording and monitoring electrical parameters (True-RMS) in low and medium voltage networks (1 and 3-phase systems with a neutral conductor).

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.
In order to record work values securely and precisely for individual consumers, the UMG measuring devices have an extensive selection of tariffs of up to 14 items depending on the device type. Of course, they differentiate between effective energy (consumption, supply and without backstop) and reactive energy (inductive, capacitive and without backstop). This can be used to record high and low tariffs separately for example.
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.
Pulse input/output
Pulse inputs can be used to record the values for meters such as water and gas meters using UMG measuring devices. Using pulse outputs as a measured value transducer, the working pulses can be transferred to a control system such as BCS, PLC, SCADA systems.
Accuracy of measurement
The high accuracy of measurement is due to the high sampling rate and very good long-term stability. If used as intended (ambient temperature!), accuracy of measurement is always better even after years of use than that of conventional meters immediately after delivery. Devices that are certified according to class A are available for measuring tasks that are particularly demanding.

Communication (device-specific)
  • Modbus (RTU)
  • Profibus DP V0
  • TCP/IP
  • M-Bus

  • RS485 (UMG 96RM, UMG 96RM-P, UMG 96RM-CBM)
  • Profibus (UMG 96RM-P)
  • M-Bus (UMG 96RM-M)
  • Ethernet (UMG 96RM-EL)
  • USB (UMG 96RM-P, UMG 96RM-CBM)

Power Quality
  • Harmonics up to 40th harmonic
  • Rotary field components
  • Distortion factorTHD-U /THD-I
  • Waveform display (UMG 96RM-EL) via GridVis®-Basic software

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

  • 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)
(UMG 96RM, UMG 96RM-M und UMG 96RM-EL without measurement data memory, energy, minimum and maximum values will be saved in the EEPROM)
  • 256 MB Flash

Up to 4 digital inputs
  • Pulse input
  • Logic input
  • State monitoring

Up to 6 digital outputs
  • Pulse output kWh / kvarh
  • Switch output
  • Threshold value output
  • Logic output
  • Remote via Modbus / Profibus

Areas of Application
  • Measurement, monitoring and checking of electrical characteristics in energy distribution systems
  • Recording of load profiles for 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)


The UMG 96S is a measurement instrument of the newest generation which is suitable for measuring, recording and monitoring electrical parameters (True-RMS) in low and medium voltage networks (1 and 3-phase systems with a neutral conductor).

  • Large, high-contrast LCD display with backlighting
  • Very good readability and intuitive operation, even in poor lighting conditions
Display Selection and Auto Display Selection and Automatic Display Rotation
  • Generous LCD display
  • All measured values can be called up in factory setting
  • Measured values that are not required can be hidden and displayed again
Particular advantages
  • Compact construction saves space and costs during installation
  • Seamless and sustained recording thanks to large measured data memory or via the online data acquisition (e.g. GridVis®-Service)
  • High data security and redundancy
  • Comprehensive communications options and protocols
  • Multifaceted, pre-defined reports for power quality and energy consumption analysis (via GridVis®-Service)
  • Simple report generation at the press of a button or automatically in accordance with defined time plans
  • Precision measurement results provide an effective infrastructure as well as high production availability
  • Generic Modbus profile: Arbitrary Modbus-capable devices and systems from other manufacturers can be incorporated and visualised in the monitoring solutions
  • Long-term availability of the measurement devices guarantees simple retrofitting with system expansions
Energy data acquisition & load profile
  • Detailed acquisition of the energy data and the load profile
  • More transparency in energy supply through energy analyses
  • Safer design of the power distribution systems
Transparency of energy supply
  • More transparency through a multi-stage, scalable measurement system
  • Acquisition of individual events through continuous measurement with high resolution
Cost centre analysis
  • Determination of energy costs
  • Breakdown and allocation of energy consumers
Energy management systems (ISO 50001)
  • Continuous increase in energy efficiency
  • Cost reduction
  • UMG 96RM series multifunctional power analysers are an important part of energy management systems
Power quality monitoring
  • Notification of inadequate power quality
  • Introduction of measures to address network problems
  • Prevention of production downtimes
  • Significantly longer service life for equipment
  • Improved sustainabilityt
Measurement accuracy of 0.2 % (V), kWh class = 0.5
  • High sampling rate at 21.3 kHz
  • Reliable measurement accuracy of 0.2 % (V)
  • Effective energy class (kWh): 0.5
Energy meter with 7 tariffs, effective and reactive energy
  • Energy measurement in 4 quadrants, each with 7 tariffs for effective and reactive energy
  • Safe and precise acquisition of operational values for individual electrical loads
Communications options: Ethernet, Profibus, Modbus, M-Bus
  • Numerous interfaces and protocols, guaranteeing an easy system connection (energy management system, PLC, SCADA, BMS
Large Measurement data memory
  • Saving of measurement data possible over very long periods of time
  • Recording freely user configurable
Janitza-UMG 96 RM-Oberschwingungsanalysator
Harmonics analyser
  • Harmonics analysis up to 40th harmonic
  • Information about power quality, grid disturbances and possible "network polluters"
Pluggable screw terminals
  • Convenient installation even where spaces are tight
Janitza-UMG 96RM-Mit-Hand
  • Large, high-contrast LCD display with backlighting
  • Very good readability and intuitive operation, even in poor lighting conditions
Janitza-UMG 96RM-Nur-Diplay
Basic device
  • RS485 interface with Modbus protocol and 2 digital outputs enable quick and low-cost monitoring of power quality and energy consumption
Profibus and digital IOs
  • The Profibus connection is used in systems where the UMG 96RM-P is to be incorporated into the automation environment (PLC controllers)
  • The UMG 96RM-M can be simply and cost-effectively integrated into consumption data acquisition systems via the M-Bus connection
  • The M-Bus is primarily used for the acquisition of consumption data collection from various different consumption meters, such as water, gas, heat or electrical current
Ethernet (TCP/IP) with the UMG 96RM-EL
  • Simple integration into the Ethernet (LAN) network
  • Fast and reliable data communication
4th current transformer input
  • Continuous monitoring of the N-conductor by means of the 4th current input
  • Available with variants UMG 96RM-P and UMG 96RM-CBM
Dimension Diagrams(in mm)
Typical Connections
Janitza-UMG 96RM-M-Massbild-Rueckansicht