mid approved meter electric power meter rs485 infrared port meter

 

Main Functions and features:

Three phase metering 7 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,transformer metering 1.5(6)A
Optional single-phase model
RS485 communication port, modbus protocol
IR port
Program by button on the nameplate
Memory back-up (EEprom)
MID approval 

 

 

Measuring function:

On the EM737’S front panel, there are three LED, active/reactive energy pulse light, and alarm indicator lights .

Meter can measure import & export active energy , import & export reactive energy. The measurement type can be set. 

 

 

Display function

 Smart meter have two status: cycle display status and button 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%.

Provide out of limit monitoring capability,  Voltage, Current, Power factor can be setup the limit value and monitoring.

 

 

Communication Function

With an infrared COM and a RS485 COM. Its physical layers are independent with each other. One communication channel will not be affected by the other one. The meter can realize data acquisition, broadcast time setting, read, program and manage through hand-held terminals, data acquisition terminal, test equipments and computers. Communication protocols fit Modbus RTU standard.

RS485 communications transfer rates allow selected at 1200bps, 2400bps, 4800 bps and 9600bps, default is 2400bps.

 

 

Alarm function

When the meter connect wire wrong example: current reverse, lost phase and reversed phase sequence , 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-), 9/ 11 Test pulse output contact (Q+/Q-) 

 

Programming 

The meter can be programmed by pressing button on the panel such as Modbus ID, password,Baudrate and CT ratio etc..

 

 

Certification

 

 

                      

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