janitza UMG 103-CBM, User Manual And Technical Data

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UMG 103-CBM www.janitza.com
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3. Product description
3.1 Device description
The device is a compact energy analyzer and is
suitable for:
·Measurements and calculations of electrical
quantities such as voltage, current, power, ener-
gy, harmonics current in building installations, on
distribution boards, circuit breakers and busbar
trunking systems.
·Measurements of voltages and currents from the
same network.
·Measurements in low-voltage networks (3-phase
4-conductor systems) in which nominal voltages
of up to 277 V from conductors to ground and
surge voltages of overvoltage category III occur.
·current measurement via external ../1 A or ../5 A
current transformers
·Installation in stationary switch cabinets or small
distribution boards, in any mounting orientation.
·Reading out measurement results via an inter-
face.
·Mains failures of max. 80 ms at a mains voltage
of 230 VAC are bridged.
3.2 Incoming goods inspection
Safe and trouble-free operation of this device and
its components presupposes proper transport,
proper storage, set-up and assembly as well as
operation and maintenance in addition to com-
pliance with the safety information and warning
notices.
Exercise due caution when unpacking and packing
the device, do not use force and only use suitable
tools.
Before installing the device, please check the
following:
·Its flawless mechanical condition by visual in-
spection.
·The scope of delivery for completeness.
If it can be assumed that safe operation of the
device is no longer possible:
·Disconnect the device from operation immediate-
ly!
·Secure the device against being switched on
again!
It can be assumed that safe operation is no longer
possible if the device, for example:
·Has visible damage.
·No longer functions despite an intact power
supply.
·Was subjected to extended periods of unfavor-
able conditions (e.g. storage outside of the per-
missible climate thresholds without adjustment to
the room climate, condensation, etc.) or transport
stress (e.g. falling from an elevated position, even
without visible external damage, etc.).
CAUTION
Malfunction and damage of the device or risk of
injury due to improper connection.
Improperly connected devices can deliver incorrect
measured values, damage the device or pose a risk
of injury to persons.
Observe the following:
·
That measured voltages and currents come
from the same network.
·
Do not use the device for measuring direct
current!
·
Ground current-conducting switchboards!
INFORMATION
The device’s suitability for measurements in medi-
um and high voltage networks is limited because
it obtains the supply voltage from the measured
voltage and loads the voltage transformer with a
non-linear current.