Application - PCE Health and Fitness ND10 User Manual

1. APPLICATION

The ND10 meter is a digital programmable panel
meter destined for the measurement of the 3-phase, 4-wire
power network parameters in balanced and unbalanced
systems. It is also capable of displaying measured quantities
and their simultaneous digital transmission. The meter is also
capable of controlling and optimization of the power electronic
devices, systems, and industrial installations. The meter can be
used for measuring: RMS value of voltage and current; active,
reactive and apparent power; active and reactive energy,
power parameters; frequency, 15-, 30- and 60-minute mean active
power and THD. Additionally, a current in the neutral wire is
calculated from the phase current vectors . Voltage and cur-
rent values are multiplied by given voltage and current ratios
of measuring transformers. Power and energy indications take
into account all programmed ratio values. Any and all measured
values can be sent to the master via the RS-485 interface.
The relay outputs signal alarm when selected parameters
exceed set limits. Impulse output can be used for consump-
tion check of the 3-phase real energy. This meter is also able
to detect and signal incorrect phase sequence.
The meter is powered by the measuring circuit, i.e. from
the voltage output.
There is a galvanic separation between following units of the
meter:
- voltage and current inputs,
- RS-485 output,
- impulse output.