I.Brief introduction forLED Programmable Digital Multi-function Energy Meter

This product adopts the most modern microprocessor and digital signal processing technology, which can measure three-phase voltage, current, power, grid frequency and other common power parameters in the power grid. At the same time, it also has electric energy accumulation, energy pulse, cross-line alarm, switch input and output, simulation transmission output and network communication functions. With a friendly man-machine interface.

This product has a very high cost performance and can directly replace conventional measuring indicator instruments, energy meters, multi-function network power meters and related auxiliary units. As an advanced intelligent, digital grid front-end acquisition component, which can be applied to various control systems, energy management systems, substation automation, distribution network automation, residential power monitoring, industrial automation, intelligent buildings, intelligent switchboards, In the beginning cabinet, it has the characteristics of convenient installation, simple wiring, convenient maintenance, small engineering quantity and field programmable input parameters. It can complete the networking of different PLC and industrial control computer communication software in the industry.
II.Main Technical Instructions

Performance	Parameters
Input measurement display	Network	3-phase 3-lines, 3-phase 4-lines
Voltage	Rated value	AC100V, 400V(Please indicate when place order)
Overload	Duration:1.2 times Instantaneous: 10 times /10s
Power consumption	＜1VA(Each phase)
Impedance	≥500kΩ
Accuracy	RMS measurement, accuracy level 0.5
Current	Rated value	AC1A, 5A(Please indicate when place order)
Overload	Duration:1.2 times Instantaneous:10 times/10s
Power consumption	＜0.4VA(Each phase）
Impedance	＜2mΩ
Accuracy	RMS measurement, accuracy level 0.5
Frequency	40~60Hz, accuracy 0.1Hz
Power	Active, apparent power accuracy is 0.5, reactive power accuracy is 1.5
Electric energy	Four-quadrant measurement, active energy accuracy 1.0, reactive energy accuracy 2.0
Display	Programmable, switching, loop (LED) display
Power supply	Power supply range	AC220V AC/DC 85~270v
Power consumption	≤5VA
Output	Digital interface	RS-485, MODBUS-RTU protocol
Pulse output	2-way energy pulse output, optocoupler isolator
Discrete input	4-way switch input, dry contact mode (optional)
Switch output	4-channel digital input, optocoupler relay (optional)
Analog output	4-channel simulation output, 4~20mA/0~20mA (optional)
Environment	working environment	-10℃~55℃
Storage environment	-20℃~75℃
Safety	Withstand voltage	Input / Power > 2kV, Input / Output > 2kV, Power / Output > 1kV
Insulation	Input, output, power supply to chassis >50MΩ