janitza UMG 103-CBM, User Manual And Technical Data

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UMG 103-CBM www.janitza.com
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3.9 Measuring method
The device measures:
·Continuously and calculates all effective values
using in a 200 ms interval.
·The true RMS value (TRMS) of the voltages and
currents applied to the measuring inputs.
3.10 Transformer
For Janitza measurement devices and compo-
nents, use
only current transformers intended
for measuring purposes ("transformers")!
"Transformers", unlike "protection transformers",
go into saturation at high current peaks. "Pro-
tection transformers" do not have this saturation
behavior and can therefore significantly exceed
the rated values in the secondary circuit. This
can overload the current measurement inputs of
the measurement devices!
Furthermore, please note that Janitza measure-
ment devices and components are
not to be
used for critical switching, control or protection
applications (protective relays)! Observe the
safety and warning information in the „2.3 Prod-
uct safety“ on page 11 and
„7. Installation“ on page 26 chapters!
3.11 Operating concept
The operating concept of the measurement
device incorporates the following methods:
·
2 coding switches
for setting the device ad-
dress
·The
GridVis network analysis and program-
ming software
®
for programming and analysis
of data
.
·The
Modbus protocol and the Modbus
address list
to configure and read out data. A
standard Modbus address list is available at
www.janitza.de.
3.12 GridVis
®
network analysis software
The GridVis
®
software (download at
www.janitza.de) is the perfect tool for the configu-
ration, readout and analysis of measurement data.
Performance characteristics of the GridVis
®
software
·Configure and read out data from your measure-
ment device.
·Graphic display of measured values.
·Store measurement data in databases.
·Analyze measurement data that has been read
out.
·Create reports.
Connections to the PC (GridVis
®
software)
Connections for communication between the PC
and the measurement device can be found in
chap. „Warning“ on page 11„Warning“ on page
11
ATTENTION
Material damage due to security vulnerabilities
in programs, IT networks and protocols.
Security vulnerabilities can lead to data misuse
and faults and even the standstill of your IT infra-
structure.
To protect your IT system, network, data com-
munications and measurement devices:
·
Inform your network administrator and/or IT
representative.
·
Always keep the meter firmware up to date
and protect the communication to the meter
with an external firewall. Close unused
ports.
·
Take protective measures against viruses
and cyber attacks from the Internet, e.g.
through firewall solutions, security updates
and virus protection programs.
·
Eliminate security vulnerabilities and update
or renew existing protection for your IT infra-
structure.