Acrel DJSF Series DC energy meter with double channels DC input is mainly designed for telecom base station, DC charging pile, solar photovoltaic and other applications. This series of meters can measure voltage, current, power and positive and negative energy in the DC system.
|Input||Nominal value||Voltage input range||Current input|
|See the physical wiring diagram||Hall sensor：0-20mA、4-20mA、0-5V，0-10V and so on.|
|Overload||1.2 times rated (continuous); 2 times rated/1 second;|
|Power consumption||Voltage: ≤0.2VA, current ≤0.1VA|
|Accuracy class||Class 1|
|Function||Display||8-bit segment LCD screen (LCD)|
|Communication Interface||RS485, infrared|
|Communication protocol||Modbus-RTU, DL/T 645-2007|
|Switch||Switch output||2 Relay outputs, 2A/30VDC or 2A/250VA|
|Switch input||2 dry contact inputs|
|Pulse output||A second pulse output, a energy pulse output|
|See the SYS->PLUS display in the meter menu setting|
|For example: The meter displays 100, which is 100imp/kWH|
|Power Supply||Voltage range||AC/DC 85-265V or DC24V(±10%) or DC48V(±10%)|
|Power consumption||≤ 3W|
|Power frequency withstand voltage||Power supply // Voltage input // Current input // Relay output and switch input // Communication interface / / Pulse output 3kV/1minPower supply // Relay output // Voltage input // Current input 3kV/1minPulse output // Communication interface // Switch input 2kV/1min|
|Insulation resistance||≥ 40M Ω|
|Average barrier-free working hours||≥50000h|
|Environment||Temperature||Normal operating temperature: -25 °C ~ +65 °C;|
|Limit working temperature: -40 °C ~ +70 °C;|
|Storage temperature: -40℃～+80℃|
|Humidity||≤93%RH, no condensation, no corrosive gas|
DJSF1352-RN has two channels dc circuits input. The input voltage shall not be higher than 120% of the rated input voltage of the product. 1A fuse shall be installed at the voltage input end. The current input should be external shunt or Hall current sensor. The instrument provides RS485 communication interface and supports Modbus-RTU protocol. Theoretically, up to 128 instruments can be connected on a line at the same time. Each instrument can set its Addr and baud, and also can be selected by setting.
DJSF DC energy meter is designed for DC screen, solar power supply, telecom base station, subway and other applications.
The DC voltage and the DC current are measured separately with two DMM, and the results are multiplied to get the DC power.
use 35mm guide rail which is convenient and quick to install.
voltage supports 1000V input, current supports shunt (0-75mV), Hall sensor (0-20mA, 4-20mA, 0-5V) access.