SDM630MCT-LoRaWAN User Manual
Zhejiang Eastron Electronic Co.,Ltd.
Add: No.1369. Chengnan Road, Nanhu District, Jiaxing City, Zhejiang, China 314001.
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1 Introduction
This document provides operating, maintenance and installation instructions .
The unit measures and displays the characteristics of single phase two wire(1p2w) , single phase
three wire(1p3w), three phase three wire(3p3w,) and three phase four wire(3p4w) supplies,
including KWh, kVArh, kW, kVAr, kVA, PF, Frequency, Voltage, Current, dmd. THD etc. Energy is
measured in terms of kWh, kVArh. Maximum demand current can be measured over preset
periods of up to 60minutes.
The requisite current input(s) are obtained via current transformers (CT). This meter can be
configured to work with a wide range of CTs, giving the unit a wide range of operation.
Configuration is password protected.
This unit has a built-in LoRaWAN module which allows long range wireless communication. Two
pulse outputs are available for real time energy measurement.
1.1
Unit Characteristics
The Unit can measure and display:
Line voltage and THD% (total harmonic distortion) of all phases
Line Frequency
Currents, Current demands and current THD% of all phases
Power, maximum power demand and power factor
Active energy imported and exported
Reactive energy imported and exported
The unit has password-protected set-up screens for:
Changing password
Supply system selection 1p2w, 1p3w, 3p3w, 3p4w
Demand Interval time, backlight time
Reset for demand measurements
Pulse output type/ duration
Current inputs correction
1.2
CT Ratio
The unit can be configured to operate with different ratio of CTs. The Primary current can up to
9999A. The secondary CT has two options: 1A/5A
1.3 Pulse outputs
The unit provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total/
import/ export kWh or kVArh.
The pulse constant can be set to generate 1 pulse per:
0.01 = 10 Wh/VArh
0.1 = 100 Wh/VArh
1 = 1 kWh/kVArh
10 = 10 kWh/kVArh
100 = 100 kWh/kVArh
