email:robin.wong@email.acrel.cn
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1 Overview
DJSF1352-RN rail-mounted 0-300v dc energy meter with double DC input channels, designed for telecommunications base stations, dc energy meter monitering 8in ones, solar photovoltaic and other applications, this series of meters can measure the voltage, current, power and forward and reverse energy and so on in the DC system.The actual use of the site, you can measure the total power, but also measure the energy within a specified period of time. The test results can be used for local display, but also with industrial control equipment, computers to form a measurement and control system.
The meter can have infrared communication interface and RS-485 communication interface, and supports Modbus-RTU protocol and DLT645-97 (07) protocol at the same time.The meter can have relay alarm output and digital input function;You can set the ratio, alarm, and communication through the meter panel keys according to different requirements.The meter can have event recording of switch (Modbus protocol), programming and event setting records(645 protocol), instantaneous and timing freeze function of data (645 protocol), maximum and minimum value recording function of voltage and current power.
2 Product specification

3 Technical parameters


Maximum power = rated voltage * voltage ratio * current ratio * 1.2
The meter can have infrared communication interface and RS-485 communication interface, and supports Modbus-RTU protocol and DLT645-97 (07) protocol at the same time. The meter can have relay alarm output and digital input function; You can set the ratio, alarm, and communication through the meter panel keys according to different requirements. The meter can have event recording of switch (Modbus protocol), programming and event setting records (645 protocol), instantaneous and timing freeze function of data (645 protocol), maximum and minimum value recording function of voltage and current power.
1 |
DC voltage, current, power measurement |
2 |
Forward and reverse energy measurement |
3 |
8-bit segment LCD screen |
4 |
RS485, infrared Communication |
4 Installation guide
4.1.2 Product installation
The meter is designed by standard DIN35mm rail mounted.
Note: The second DC input channel and DI and DO functions are optional.
When the current input mode is current shunt input:
Note: 1. When current shunt is connected to the negative, set the option to on in the meter menu, see section 6 menu programming interface for details.
2. When the two current inputs are input by the Hall current sensor, the power supply of the second Hall current sensor cannot be used with the built-in power supply of the meter, and the power module needs to be externally
connected.
3. When the current is input by the shunt, the voltage value measured by the four-wire method has an error of about one thousandth.