1、 Overview

It integrates our company's more than ten years of experience in manufacturing and on-site operation of intelligent and high-precision monitoring instruments and meters. It has the characteristics of high precision, good operational stability, strong functionality, and easy operation. It can accurately and quickly measure, record, and analyze various electrical parameters. The product complies with national and industry standards such as GB/T17883-1999, GB/T17882-1999, DL/T614-1997 "Multifunctional Energy Meter", and its communication meets the requirements of DL/T645-1997 "Multifunctional Energy Meter Communication Protocol".

2、 Functional Features

High reliability, low power consumption, long lifespan, wide range, high precision

Time division measurement of positive and negative active and reactive energy, as well as four quadrant reactive energy

Maximum demand and occurrence time of active and reactive power in both forward and reverse directions for time-sharing metering

Multiple rate function: 4 programmable rates, 20 time periods, 13 sets of daily time period tables, 4 time zones, and 30 public holidays

Equipped with two RS485 interfaces and one infrared communication interface

Equipped with automatic parameter rotation display function, the parameters, time, and sequence of the rotation display can be set

Real time measurement of total voltage, current, active power, reactive power, power factor, and grid frequency for phases A, B, and C

It has the function of recording events such as voltage loss, current loss, phase failure, total voltage loss, power outage, programming, energy reset, and meter power on/off

Equipped with electricity freezing and load curve recording functions

Active and reactive pulse output, demand cycle and other second signal output functions

3、 Main technical indicators and parameters

Working voltage: 0.8Un~1.1Un (limit: 0.7Un~1.2Un)

Working temperature: -25 ℃~+55 ℃ (limit:- 30℃～+65℃）

Relative humidity: ≤ 85RH (maximum humidity: ≤ 95RH）

Voltage line power consumption: less than 2W, 10VA (per phase)

Starting current: meets the requirements of GB/T17883-1999 and GB/T17882-1999

Accuracy level: 1.0/2.0 (active/reactive)

Wiring methods: single-phase, three-phase three wire, three-phase four wire

Reference voltage: 3 × 57.5/100V; 3×220/380V

Current range: 1.56A, 520A, 2.510A, 520A, 530A, 1040A, 2080A, 30100A

4、 Key components

The PCB board and surface mounted components are treated with special processes, which have good insulation, moisture resistance, and oxidation resistance characteristics.

Measurement chip: ADE7758

Electrolytic capacitor: Japanese Ruby (YXF) capacitor.

Display device: wide temperature, wide viewing angle STN LCD·

Adopting flame-retardant ABS+PC shell and anti fading aluminum nameplate.