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Configuration - measurement
Rated frequency
For measuring and calculating the meaurement
values, the EM-PQ2500 requires the Rated fre-
quency of a.c. systems.
The EM-PQ2500 is suitable for measurements
in networks with a rated frequency in the range
of 40Hz to 70Hz.
The rated frequency can be specified by the
user or automatically detected by the device.
•
Auto
- Factory pre-setting. The rated fre-
quency is measured.
•
50Hz
- The rated frequency is set to 50Hz.
The rated frequency is not measured.
•
60Hz
- The rated frequency is set to 60Hz.
The rated frequency is not measured.
Automatic frequency detection
A voltage (V-Vref) larger than 10Veff must be
applied on at least one of the voltage measure-
ment inputs for the automatic detection of fre-
quency by the EM-PQ2500.
If a sufficient measurement voltage is not ap-
plied, the EM-PQ2500 can not detect the rated
frequency and a measurement can therefore not
be carried out.
