EM427 120/240V 10(100)A smart electricity kwh meter

single phase digital 120v din rail watt-hour meter

• single phase digital 120/240V
• 4 DIN modules, Standard DIN rail Format (DIN43880)
• IEC62053-21/22 Class 1.0,0.5S
• Import &Export active energy
• Import &Export reactive energy
• Instant Volt, Amp, Power factor, Frequency, Active power, Reactive power, Apparent power
• Isolate pulse output (DIN43864)
• LCD display, 6 integer 2 decimal , meter display when power fails
• Large clear backlight display
• Internal transformer
• Direct metering up to 100A
• RS485 communication port, modbus protocol
• IR port
• Program by button on the nameplate
• Memory back-up (EEprom)
• CE approval

specification :

Dimension :

Wiring diagrams:

3 Wire with RS485: 2 wire with RS485 :

Main function:

Measuring Function:

Meter can measure import & export active energy , import & export reactive energy.

Display function :

Smart meter have two status: cycle display status andbutton press display .When pressing the button, User can set according their request. Button press will Backlight the LCD. Display cycle can be set within 5~20 seconds, The default is 5 seconds.

Electricity parameters measurement and monitoring :

Measure record and display voltage, current, power and power factors. error is not more than ±1%.

Communication Function :

With an infrared COM and a RS485 COM. Communication protocols fit Modbus RTU standard. RS485 communications transfer rates allow selected at 1200bps, 2400bps, 4800 bps and 9600bps, default is 9600bps.

Alarm function:

When the meter connect wire wrong example: current reverse, the meter will display , the ALARM led will be on.

Pulse output function :

Smart meter is equipped with a pulse output which is fully separated from the inside circuit. That generates pulses in proportion to the measured energy .include the testing pulse output of active energy and reactive energy. 8/ 11 Test pulse output contact (P+/P-).