DC energy meter for photovoltaic power station

The DC energy meter of the photovoltaic power station adopts LCD display and has RS485 function for data exchange with a microcomputer. 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. DJSF1352 rail type DC energy meter charging pile DC metering

1. Overview

　　DC energy meter for photovoltaic power stationAdopting LCD display, with RS485 function for data exchange with microcomputer. 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.

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. Electric energy meters have the characteristics of high overload, high accuracy, low power consumption, automatic storage of power outage data, and long lifespan. This electric meter complies with the Q/GDW1825-2013 DC Energy Meter Technical Specification and GB/T29318-2012 Technical Requirements for Off Board Charging Energy Measurement of Electric Vehicles.

The DJSF1352 automotive DC charging station has numerous functions and can meet the special requirements of different occasions at home and abroad. The main functions are as follows:

★ 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, with a small interval of 15 minutes between time periods. Time periods can be set across zero points;

Modulation infrared communication interface and RS-485 communication interface, using DL/T645-2007 communication protocol and Modbus RTU protocol. The communication rate of RS485 can be set at 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, and the modulation infrared is fixed at 1200bps.DC energy meter for photovoltaic power station

2.2 Technical Parameters

2.2.1 Basic Error

At rated voltage (Un), the basic error of the electric energy meter should not exceed the error limit in the following table

Table 1 Basic Error of Electric Energy Meter

2.2.2 Operating voltage range

Table 2 Operating Voltage Range

2.2.3 Submersion

Under reference conditions, the current circuit of the electric energy meter is short circuited, and the voltage circuit is applied with 1.1Un and 0.8Un respectively. Within 20 minutes, the electric energy meter cannot have pulse output or the indicator light representing pulse output does not flash.

2.2.4 Power consumption

2.2.5 Working environment conditions

2.2.6 Communication Interface

2.2.7 Mechanical parameters

★ Dimensions: 160 ± 0.5mm (length) 112 ± 0.5mm (width) 58 ± 0.5mm (thickness)

★ Weight: Approximately 0.5kg

3. Product Features