Jiangsu Acrel Electrical Manufacturing Co., LTD.
Jiangsu Acrel Electrical Manufacturing Co., LTD.

ACREL DC Energy Meter Application in PV System in Canada

This article introduces the application of Acrel DC meters in PV systems in Canada. The device is measuring the current, together with the shunt.

1. Project Overview

The company is located in Canada, and the company is mainly engaged in the photovoltaic industry. The customer wants to use the DC meter DJSF1352-RN and shunt to monitor and measure the current and voltage of the photovoltaic system and use the switch function of the DC meter for control.

2. DJSF1352-RN Series DC Energy Meters

DJSF1352-RN series intelligent DC energy meter is designed for applications such as DC panels, solar power, telecommunications base stations, and charging ports. This series of instruments can measure voltage, current, power, forward and reverse power in a DC system. It can be used for local display, and connected with industrial control

equipment, computers, form a measurement and control system. And it has a variety of external excuse functions for the user to choose from: RS485 communication interface, Modbus-RTU protocol, relay alarm output, digital input/output. According to different requirements, through the instrument panel keys, you can set the ratio, communication parameters.

3. Model Description

ACREL DC Energy Meter Application in PV System in Canada

4. Technical data

Technical parameterslndex
InputNominal valueVoltage input rangeCurrent input
DC 0-1000VShunt: 0-75mV ;
Hall sensor: 0-20mA、4-20mA.
0-5V,0-10V and so on.
Overload1.2 times rated (continuous); 2 times rated/1 second
Power consumptionVoltage: ≤0.2VA, current ≤0.1VA
AccuracyClass 1
FunctionDisplay8-bit segment LCD screen (LCD)
Communication interfaceRS485, infrared
Communication protocolModbus-R TU, DL/T 645-2007
SwitchSwitch output2 relay outputs,2A/30VDC or 2A/250VAC
Switch input2 dry contact inputs
Pulse outputA second pulse output, an energy pulse output
See the SYS->PLUS display in the meter menu settings For example The meter displays 100, which is 100imp/kWh
Power SupplyVoltage rangeAC/DC 85-265V or DC24V(±10%) or DC48V(±10%)
Power consumption≤3W
Power frequency withstand voltagePower supply ll Voltage input l/l Current input !/l Relay output and switch input l/ Communication interface // Pulse output 3kV/1min
Insulation resistance≥40MΩ
Average barrier-free working hours≥50000h
EnvironmentTemperatureNormal operating temperature: -25C~+65°C; Limit
Humidity≤93%RH, no condensation, no corrosive gas

5. Product main functions

ACREL DC Energy Meter Application in PV System in Canada

6. Installation picture

ACREL DC Energy Meter Application in PV System in Canada

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