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  • SDM630MCT-RJ Three Phase Multifunction Energy Meter with RJ12 CT connected, RS485 Modbus RTU

    • Measures kWh Kvarh, KW, Kvar, KVA, P, F, PF, Hz, dmd, V, A, etc.
    • Bi-directional measurement IMP & EXP
    • Two pulse outputs
    • Mbus
    • Din rail Mounted
    • Easy Wire RJ12 CT connection
    • Class 1.0 accuracy
    • 72mm  4 modual width
    • Description
    • Diagram
    • Manual Download
    SDM630MCT-RJ  measures and displays the characteristics of single phase two wires (1p2w), three phase three wires(3p3w,) and three phase four wires(3p4w) supplies, including voltage, frequency, current, power ,active and reactive energy, imported or exported. Energy is measured in terms of kWh, kVArh. Maximum demand current can be measured over preset periods of up to 60minutes. In order to measure energy, the unit requires voltage and current inputs in addition to the supply required to power the product. The requisite current input(s) are obtained via current transformers(CT).

    This meter can be configured to work with RJ12 CTs, giving the unit a wide range of operation. Built-in interfaces provides pulse and RS485 Modbus RTU outputs. Configuration is password protected.

    This unit can be powered from a separate auxiliary (AC or DC) supply. Alternatively it can be powered from the monitored supply, where appropriate.

    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, 3p3w,3p4w
    Demand Interval time
    Reset for demand measurements
    Pulse output duration 

    Two pulse output indicates real-time energy measurement. An RS485 output allows remote monitoring from another display or a computer.

    Current Transformer Primary Current
    The unit can be configured to operate with CT ratio between primary current and secondary current. The secondary CT : 100mV

    RS485 Serial–Modbus RTU
    This uses an RS485 serial port with Modbus RTU protocol to provide a means of remotely monitoring and controlling the Unit
    Set-up screens are provided for setting up the RS485 port. 

    Pulse output
    This provides two pulse outputs that clock up measured active and reactive energy. The constant for active energy is 3200imp/kWh(Terminals 11&12). The pulse width for pulse 1(Terminals 9&10) can be set from the set-up menu.