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Help CenterEM427 Kwh Meter Single Phase Digital 120v Smart Electricity Meter Single Phase Single Phase Din Rail Watt-hour Meter
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EM427 kwh meter single phase digital 120v/240V
smart electricity meter single phase single phase din rail watt-hour meter
- single phase digital 120v/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 :
Electrical Characteristics |
EM427 |
Voltage(v) |
120v/240v |
Operational voltage |
±70%Un |
Current(A) | |
- Iref |
10A |
-Itr |
1A |
-Imax |
100A |
-Imin |
0.5A |
-Ist |
40mA |
Power consumption of current circuits(VA) |
< 0.01 |
Power consumption of voltage circuits(W) |
< 1.3W |
General data | |
Frequency (Hz) |
50/60 |
Memory back-up |
EEprom |
Environment resistance to heat and fire |
Terminal 960°C Cover 650°C |
Enclosure material | |
upper |
ABS+PC |
lower |
ABS+PC |
Pulse output | |
Pulse width(ms) |
80 |
Pulse constant(imp/kWh) |
1000 |
LED | |
LED constant |
1000 |
Dimension | |
Width (mm) |
72 |
Height (mm) |
104.5 |
Depth (mm) |
60 |
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-).
Other products:
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