Putting into service
Connecting the supply voltage
• The power supply voltage level for the UMG 96RM-E
is given on the rating plate.
• After applying the power supply voltage the device
switches on to display the first measured value.
• If no display appears, check whether the power supply
voltage is within the rated voltage range.
Applying the measuring-circuit voltage
• Measurement of voltages in the mains with over
300VAC to earth must be connected via voltage
transformers.
• After connecting the measurement-current voltages,
the measured values displayed by the UMG 96RM-E
for the L-N and L-L voltages must correspond to those
at the voltage measurement input.
m
Caution!
Voltages and currents that are outside
the permissible measuring range can lead
to personal injury and damage the device.
m
Caution!
If the supply voltage does not correspond
to the voltage indicated on the rating
plate, this may lead to malfunctions severe
damage to the device.
m
Caution!
The UMG 96RM is not suitable for
measuring DC voltages.
Applying the measuring-circuit current
The UMG 96RM-E 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 96RM
with the applied current.
Bearing in mind the current transformer conversion
ratio, the current displayed by the UMG 96RM-E must
correspond with the input current.
The UMG 96RM-E 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.
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