UMG 801
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Technical details

Item no.: 5231003
Data sheet (407 kB)
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Janitza UMG 801 Front 1

Data at a glance

Certifications

  • UL certified

Three-phase 4-conductor system, grounded, max (IEC)

480 / 830 V AC (IEC)

Three-phase 4-conductor system, grounded, max (UL)

347 / 600 V AC (UL)

Three-phase 3-conductor system, ungrounded, max

690 V AC

Supply voltage DC

24 V DC, PELV

Three-conductor / Four-conductor (L-N, L-L)

Yes / Yes

Quadrants

4

Sampling rate 50/60 Hz

51.2 kHz (V) / 25.6 kHz (A)

Effective value from periods (50/60 Hz)

10/12

Current measuring channels

8

Combined function: Analog/Temperature/Residual

4

Harmonics V / A

1st – 127th / 1st – 63rd

Distortion factor THD-U/THD-I in %

Yes

Transients

18 µs (V) / 39 µs (A)

Accuracy V; A

0,2 %; 0,2 %

IEC 61000-4-30

Class S

Active energy class

0.2S (…/5 A)

Digital inputs

4

Digital / Pulse output

4

Memory size

4 GB

Recording time (factory setting)

approx. 95.95 months

Integrated logic

Comparator

Software & Function

  • GridVis®-Essential

GridVis® Items

1

Other properties

  • Unbalance
  • Short-term flicker / long-term flicker
  • Short-term interruptions
  • Memory min. / max. values
  • Analogue output

Integrated functions

  • Clock
  • Webserver

Interfaces

  • RS485
  • USB
  • Ethernet (2x)

Protocols

  • Modbus RTU
  • Modbus Gateway (To query slave devices)
  • Modbus TCP/IP
  • OPC UA

Functions and features

Communication

2 Ethernet interfaces enabling simultaneous (switched mode) or separate (dedicated mode) use

  • Complex measurement device and module topologies can be implemented when used separately

Extreme Value Capture

  • Easy-to-use extreme value capture functionality for the most important measured variables, such as conductor currents and voltages

Device Homepage

  • Integrated web server on base device for customized configuration without needing to use additional software

Power quality

  • Capture, analysis and documen­tation of disturbance variables, e.g. harmonics current
  • Event and transient detection with storage in PQDiff and Comtrade
  • Comprehensive visu­alization in the event browser

Maximum data security

  • Secure communication through OPC UA security structures
  • Data storage (redundancy) provided by the basic device’s onboard memory

Minimum integration costs

  • Easy integration into a higher- level system through open communication architecture via OPC UA standard (e.g. GLT, SCADA and ERP applications)
  • Versatile interfaces that can be used simultaneously
  • Gateway functionality for integrating additional devices e.g. Janitza UMGs from downstream measurement levels

Flexible use

  • Multifunction channels are available and offer flexible options depending on the application required: RCM, temperature or current measurement

Future-proof-investment

  • Modular extension of the measuring points by measuring modules
  • Open and future-proof communication through various interfaces and OPC UA Server
  • IPv4 and IPv6 Ethernet IP addresses

Profit from OPC UA

  • Easy integration of measurement data from the basic device and measurement modules into higher-level systems (e.g. building control systems, SCADA systems)
  • Cyber security: Integrated security mechanisms to protect against unauthorized access and misuse
  • Configuration of the entire measuring system via OPC UA
  • Future-proof software architecture as the OPC UA standard evolves with new applications

Managing and using Data

  • Various interfaces for simultaneous use
  • 2 Ethernet interfaces
  • RS485 interface for data readout and can be used as gateway
  • Comprehensive protocols and services (OPC UA and Modbus)

Visualizing, documenting and analyzing

  • Comprehensive options for visualizing, analyzing and documenting energy measurement data (GridVis® software)
  • Integrated automatic report generation (GridVis® software)
  • Integrated color graphic display for visualization and intuitive configuration on site

High-precision measurement

  • High sampling frequency (51.2 kHz voltage)
  • 1024 Samples for the voltage measurement
  • High measurement accuracy on all channels (V: 0.2% / A: 0.2% / kWh: class 0.2)
  • Maximum safety: 1000 V CAT III
  • Extensive power quality parameters
    • Voltage up to 127th harmonic and interharmonics – THD-U and THD-I
    • THD-U and THD-I
    • unbalance
    • Event and transient detection

All in one device

  • The basic device has:
  • 8 current measurement channels with 1/5 A inputs
  • 4 Multifunction channels, optionally configurable as RCM, temperature measurement channels or additional current measurement channels
  • Extensive measurement data memory with 4 GB for storage of measurement data
  • Two groups with four digital IOs each (tariff changeover and pulse input, logic states)
  • Analog output (DC 0/4-20 mA)