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UMG 512
Nominal frequency
The UMG 512 determines the mains frequency from
the voltage applied to L1 and uses this for the additional
calculations.
The nominal frequency is required as a reference for
measurement of the voltage quality.
Configure the nominal frequency for the mains
on the UMG 512 prior to starting the measurement.
Select the mains frequency 50Hz or 60Hz
for measuring the power quality in accordance with
EN61000-4-30 and EN50160.
Setting range of the nominal frequency:
• 50Hz (factory default setting)
• 60Hz
• 15Hz to 440Hz (wide range)
Set the nominal frequency to "Wide range" for
measurements in networks with other nominal
frequencies e.g. 16 2/3Hz or 400Hz.
C
In order to determine the mains
frequency, a voltage L1-N of greater
than 10Veff must be applied to voltage
measurement input V1.
Содержание UMG 512
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