KW2G / KW2G-H Eco-POWER METER
8
Chapter 3 Installation
3.1 Measured-circuit
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It is not impossible to use to measure several loads by different strain power supply.
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Each unit (main unit, expansion unit (power measurement, power measu pulse output)) can
measure 2-circuit of single-phase two-wire system, and 1-circuit of single-phase three-wire system or
three-phase three-wire system. Each unit can be used with different phase and wire system. However
be sure to check the wiring carefully.
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It is impossible to measure by only the expansion unit. Connect expansion units to main unit.
Up to 7 expansion units are connected to 1 main unit. You can use with the combination of power
measurement, power measu pulse output, pulse input and analog input as expansion units.
*Power source system
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Power source system is the electrical power system from one power source (normally one
transformer).
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KW2G can measure 1-system max. 16-circuits of 1P2W system and 1-system max. 8-circuit of 1P3W
and 3P3W system by connecting a main unit and expansion units (power measurement, power
measu pulse output).
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In order to measure several systems, it is necessary to use one main unit for each system.
3.2 Connection between the main unit and the expansion unit
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Turn off the power of main unit when connecting expansion units.
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Peel off connector label on the side before connecting.
(Do not peel off connector labels when not connecting.)
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It expands by connecting each male connector to female connector. Female connector is on the other
side of male connector.
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After connecting, push the hooks into the unit to fix the expansion unit.
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Up to 7 expansion units can be connected per one main unit.
Note) Communication will be stopped or the measurement data will be lost when the units are
removed or connected while turn on power.
Hook Hook Hook Connector label
Expansion connector (male)
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