janitza UMG 512, Operation Manual And Technical Data

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UMG 512
Applying the measuring-circuit voltage
The UMG 512 is designed for the connection of .. /1A
and .. /5A current transformers.
Only AC currents can be measured via the current
measurement inputs - DC currents cannot.
Short circuit all current transformer outputs except for
one. Compare the currents displayed by the UMG 512
with the applied current.
Bearing in mind the current transformer conversion ratio,
the current displayed by the UMG 512 must correspond
with the input current.
The UMG 512 must display approx. zero amperes
in the short circuited current measurement inputs.
The current transformer ratio is factory-set to 5/5A
and must be adapted to the current transformer used
if necessary.
Phase shift angle sign prefix (U/I):
- Positive (+) for capacitive load
- Negative (-) for inductive load
In the Phasor diagram, the voltages are displayed
with long pointers and the currents with short
pointers.
Current
Voltage
Please note!
Voltages and currents that are outside
the permissible measuring range can
damage the device.
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