Chapter 1. Introduction
1.1 Introduction
SDM630MCT-ML is a new multifunction energy meter designed by Eastron for multi channels measurements.
The meter can work with 1p2w, 1p3w, 3p3w and 3p4w electricity grid, and it provides all important electrical
parameters: voltage, current, power, PF, THD, frequency, demand, energy etc. By using plug-in connectors, the
meter provides an easy click solution saving 80% installation time and avoiding wiring mistakes.
The SDM630MCT-ML is compactly designed. It can be used as 4x three phase energy meters or 12x single
phase energy meters. 100mV secondary external CT is required to work with the meter.
The meter is equipped with a RS485 communication port by using 2x RJ45 connectors. Modbus RTU protocol is
adopted for remote reading and programming. The meter has a big backlitted LCD showing data and uses 4
touch buttons in front for data checking and programming.
1.2 Product Characteristics
⚫ 100mV/100mA CT connected
⚫ Multiparameters measurement
⚫ Plug-in solution
⚫ LCD with white backlit, adjustable backlit time
⚫ Quad loads measurement
Measurements:
⚫ Phase voltage: V1, V2, V3
⚫ Line voltage: V1-2, V2-3, V3-1
⚫ Current: I1, I2, I3
⚫ Active power: P1, P2, P3, P_total (total active power)
⚫ Reactive power: Q1, Q2, Q3, Q_total (total reactive power)
⚫ Apparent power: S1, S2, S3, S_Total (total apparent power)
⚫ Frequency: Hz
⚫ Power factor: PF
⚫ Active energy: Ep_imp (import active energy), Ep_exp (export active energy), Ep_total (total active energy)
⚫ Reactive energy: Eq_imp (import reactive energy), Eq_exp (export reactive energy), Eq_total (total reactive
energy)
⚫ THD-I and THD-U
⚫ Maximum demand: MD
⚫ Max./Min. value: Max/Min
Setup:
⚫ RS485 Modbus
⚫ CT1 value
⚫ CT reverse connection
⚫ Demand Interval Time
⚫ Backlit time
⚫ Supply system 1p2w, 1p3w,3p3w,3p4w
⚫ Reset
⚫ Password modification
1.3 Application
SDM630MCT-ML is suitable for scenarios where multi-loads are required.
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