Technology of Electrical Automatic

DC energy meter

There are 2 models of the DC energy meter: DCEM and E1-3P. Both of the dc kwh meters are designed for measuring and monitoring DC systems. This dc smart meter can measure important DC parameters: Voltage, current, power, and energy, etc. All data in the dc meter are accessible via RS485 using Modbus RTU. Input voltage range up to 1000VDC, and are din rail installing.

DCEM series DC energy meter, including DCEM and DCEM-2, can measure 0-500A and 0-1000VDC. Current inputs are flexible with a Hall CT or a shunt. DCEM is 4 channels metering and hall CT connected. DCEM-2 are 2 channels metering and shunt connected.

E1-3P series DC energy meter can have 1-way independent shunt access or 2-way independent shunt access.

Blue Jay DC energy meter is designed for scenarios such as electric power, communication, railway, transportation, environmental protection, petrochemical, steel, and other industries.

DC Energy Meter Features

  • Real-time measure DC voltage, current, energy
  • Hall effect current sensor or shunt connected
  • Standard DIN35mm rail mounted
  • RS485 communication interface
  • Supports Modbus-RTU protocol
  • LCD Screen

technical specification of dc energy meter

MeteringVoltage, Current, Power, Energy
InstallationDIN rail installing
Accuracy classClass 0.5
InputCurrent Sensing InputShunt (75mV) or Voltage Hall Effect Sensor (0-4V)
Voltage input rangeDC 0-1000V
Overload1.2 times rated continuous; 10 times rated/1second;
FunctionDisplayLCD screen
Communication InterfaceRS485
Communication protocolModbus-RTU
Pulse output1 channel, 2channel or 4 channel, energy pulse output
Power SupplyVoltage rangeAC/DC 85-265Vor 24-60V
Power consumption≤4VA

Wiring Diagram

1.Wiring diagram with shunt

2.2. Wiring diagram with Hall Effect Current Sensor

Diagram of DIN rail installation

Dimension of dc energy meter with RS485

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