JINKO JK9948B 直流电子负载 (1~300V, 0~240A, 4800W)

Input 

Input Voltage: AC 220V ±10%, 50 ±20Hz

Power Consumption: <40W (without load)

Load  

Load Voltage: 1-300V

Load Current: 0-240A (Scalable to 120A)

Load Voltage (B type): Can be customized >300V

Load Power: 4800W

Load Resistance: 0.1Ω - 10000Ω (240A gear 1mA, 24A gear 0.1mA)

Measurement Resolution 

Current: 0.0001A

Voltage: 0.001V

Resistance: 0.001Ω

Power: 0.001W

Measurement Accuracy 

Main Current: Imax ±0.05% + 0.05% FS (24-bit A/D, 15ppm/°C Standard)

Main Voltage: Vmax ±0.05% + 0.05% FS (24-bit A/D, 15ppm/°C Standard, Input Impedance 230KΩ)

Control Accuracy 

Current: Imax ±0.1% + 0.05% FS (16-bit D/A, 15ppm/°C Standard)

Voltage: Vmax ±0.1% + 0.05% FS (16-bit D/A, 15ppm/°C Standard)

Resistance: Rmax ±0.1% + 0.1Ω (16-bit D/A, 15ppm/°C Standard)

Power: Pmax ±0.1% + 0.1W (16-bit D/A, 15ppm/°C Standard)

Protection 

Overvoltage: 310V

Overtemperature: 85℃

Overpower: 5000W

Overcurrent: 240A

Communication Interface 

Program Control Interface: RS232, RS485

Monitoring Software: Supports PC connection, downloadable from the official website (open communication protocol, supports secondary development)

Function 

Working Mode: Constant current (CC), constant voltage (CV), constant resistance (CR), constant power (CP)

Routine Function: Dynamic test (up to 10KHz), short circuit test, high-precision battery test (Ah, watt-hour WH), battery discharge: (constant resistance, constant current)

Automatic Test Function: Overcurrent protection point/protection time test, internal resistance test, list test

Expand Function: External Trigger, PASS/FAIL Output: Remote voltage measurement

Accessories: RS232 communication cable, heavy-current copper-plated silver-plated cold-pressed terminal, communication extension terminal, power cord, manual, warranty card

Operating Environment 

Temperature Range: Full range: 0~30℃ (Derating over 30℃, derating rate 40W/℃)

Humidity Range: 10~60%RH

Withstand Voltage (DC Input Terminal to Chassis): ±250VDC

Insulation Resistance (DC Input Terminal to Chassis): >20MΩ, 500VDC

Insulation Resistance (AC Input Terminal to Chassis): >20MΩ, 500VDC

Datasheet

Brife Introduction 

A new generation of programmable high-power DC electronic load, using high-performance chips, high-speed, high-precision design, providing 1mV, 1mA resolution modular design, easy to maintain and expand. Built-in high-resolution and high-precision measurement circuit, At the same time of high current and high power input, it still has extremely high accuracy and resolution, making your test results more accurate and convenient. 

A new generation of programmable high-power DC electronic loads with constant voltage CV, constant power CW, constant current CC and constant resistance CR modes, remote measurement, short circuit test, battery test and dynamic test multi-functions, to meet your diversified testing needs. JK9900 series high-power electronic loads have the best cost performance and are your wise choice for power supply and other power equipment testing applications. 

Performance characteristics 

■ Constant current, constant resistance, constant voltage, constant power, constant current and constant voltage; 

■ Constant resistance, constant voltage, six high-speed action modes; 

■ Overcurrent, overvoltage, overpower, overheating, reverse polarity protection; 

■ According to temperature changes, the infinite servo intelligent fan system; 

■ The circuit soft start time is set, which can be loaded according to the set voltage value; 

■ Battery test and short circuit function; 

■ Provide dynamic test, setting of rising and falling slope; 

■ Support external trigger input and output; 

■ Support remote voltage compensation, multiple data storage; 

■ Power-on self-check, software calibration, standard instrument rack design; 

■ Support RS232, RS485 communication. 

Application 

Uses of high-power electronic loads: widely used in production lines (mobile phone chargers, mobile phone batteries, electric vehicle batteries, switching power supplies, linear power supplies), scientific research institutions, automotive electronics, aerospace; ships, solar cells, fuel cells and other industries.