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UMG 508
Applying measurement current
The UMG508 is designed for the connection of
../1A and ../5A current converters.
Only AC currents, and not DC currents, can be
measured using the current measurement in-
puts.
Short-circuit all current converter outputs ex-
cept one. Compare the currents displayed by
the UMG508 with the applied current.
The current displayed by the UMG508 must
match the input current under consideration of
the current converter transfer relation.
The UMG508 must display approx. zero am-
peres in the short-circuited current measure-
ment inputs.
The current converter ratio is set to 5/5A in the
factory and may have to be adapted to the cur-
rent converter used.
Warning!
Voltages and currents outside of the
authorized measurement range can
destroy the device.
m
Voltages are shown with long pointers in the
pointer diagram, and currents with shorter
pointers.
Current
Voltage
Sign
Reactive power
• positive (+) with inductive load,
• negative (-) with capacitive load.
Phase angle (U/I)
• positive (+) with capacitive load,
• negative (-) with inductive load.
