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Summary of Contents for Eastron SDM120C
- Page 1 SDM120C SMART MINI POWER DIN Rail Smart Energy Meter for Single Electrical Systems USER MANUAL 2014 V1.0...
- Page 2 Important Safety Information is contained in the Maintenance section. Familiarize yourself with this information before attempting installation or other procedures. Symbols used in this document: Risk of Danger: These instructions contain important safety information: Read them before starting installation or servicing of the equipment Caution: Risk of Electric Shock...
- Page 3 1 Introduction This document provides operating, maintenance and installation instructions.The unit measures and displays the characteristics of single phase two wires(1p2w)supply, including voltage(V), current(A),power(W),frequency(Hz),power factor(PF),active energy(kWh).The non-displayed parameters of imported and exported energy can be read via RS485 communication with corresponding register.
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Page 4: Rs485 Modbus Rtu
2.Specifications 2.1 Performance criteria ≤ 85% Operating humidity ≤ 95% Storage humidity -25 ° C - +55 ° C Operating temperature (3K6) Storage temperature -30°C - +70°C International standard IEC 62053-21 Accuracy class 0.5 or 1.0 Protection against penetration of dust and water IP51 Insulating encased meter of protective class 2.2 Meter specifications Nominal voltage(Un) - Page 5 2.4 Accuracy Voltage 0·5% of range maximum Current 0·5% of nominal Frequency 0·2% of mid-frequency Power factor 1% of unity (0.01) Active power (W) ±1% of range maximum Reactive power (VAr) ±2% of range maximum Apparent power (VA) ±1% of range maximum Active energy (Wh) Class 1 IEC 62053-21 2.5 Environment...
- Page 6 Press the button once effectively to scroll the display interface Long press the button last for 3 secs to enter the set-up model Each successive pressing of the button selects a new range: Total kWh The default display form is X.XX,when it achieve 9.99,the display form will turn to XX.XX, then XXX.XX and XXXX.XX Voltage...
- Page 7 SDM120C smart meter can be set to any value between 1 and 247.Broadcast mode(address 0)is not supported. All data values in the SDM120C smart meter are transferred as 32 bit IEEE754 floating print numbers,therefore each SDM120C smart meter value is transferred using two Modbus Protocol registers.All register read requests and data write requests must specify and even number of...
- Page 8 30017 Current Amps Float 30013 Active power Watts Float 30019 Apparent power Float 30025 Reactive power Float 30031 Power factor None Float 30071 Frequency Float 30073 Import active energy Float 30075 Export active energy Float 30343 Total active energy Float Part 2 *It needs to long press the button on meter last for 3 seconds to enter the set-up interface firstly,then the set-up can be realized via RS485 communication.After the set-up is finished,long...
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Page 9: Installation
0001:Import energy,only the LED of import energy lights on 0002:Export energy,only the LED of export energy lights on 6 Dimensions 7. Installation DIN Rail 8.Wiring diagram...
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