1000V DC energy meter

Jian Ting

Ankerui Electric Co., Ltd. Shanghai Jiading 201801

User side energy storage meter, bidirectional DC energy meter

1 Definition

The DJSF1352 electronic DC energy meter adopts a liquid crystal display and has RS485 function for data exchange with a microcomputer. The product consists of a measuring unit, a data processing unit, a communication unit, a display unit, etc., and has functions such as energy measurement, data processing, real-time monitoring, and LCD display.

2 Scope of application

Suitable for DC metering of charging stations, battery, solar panel and other DC signal equipment for power measurement and energy metering. It can also be used for modern DC power supply and distribution systems in industrial and mining enterprises, civil buildings, building automation, etc.

3 main functions

★ It has the function of measuring active energy in both forward and reverse directions, with a combined energy of forward and reverse;

★ Voltage, current, and power measurement;

★ Settlement function for the previous 12 months;

★ It has calendar, timing, and leap year automatic conversion functions, as well as timing function. The clock error issued by the broadcast shall not exceed 5 minutes, and time calibration is not allowed within ten minutes before and after midnight. Time calibration is only allowed once a day;

★ It has two sets of rate time periods, which can be automatically converted through pre-set times. Each rate time period can have at least two time zones throughout the year, and at least 8 time periods can be set within 24 hours. The interval between time periods is 15 minutes, and time periods can be set across zero points;

Modulation infrared communication interface and RS-485 communication interface, using DL/T645-2007 communication protocol, DL/T698.45 communication protocol and Modbus RTU protocol. The communication rate of RS485 can be set at 1200bps, 2400bps, 4800bps, 9600bps, and the modulation infrared is fixed at 1200bp

Comparison of 4 models

5 Technical Parameters

6 Appearance and Installation

External dimensions:

Wall mounted:

Rail type:

Installation:

Wall mounted:

The electric energy meter should be installed indoors, and the base plate for installing the electric energy meter should be placed on a sturdy and fire-resistant wall. It is recommended to install it at a height of about 1.8m. There are no corrosive gases in the air. The upper part of the electric meter has hook screw holes that use M4 hook screws, and the lower part of the electric meter has 2 installation holes that are fixed to the terminal block with M5 × 35 self tapping screws (as shown in the figure below).

Rail type:

Actual installation

7 Wiring

Wiring diagram for shunt

Wiring diagram for sensors

8 Application Networking Diagram

User side energy storage meter, bidirectional DC energy meter

Author Profile: Jian Ting, female, undergraduate, currently working at Ankerui Electric Co., Ltd