The Rigol DL3031A is a programmable DC electronic load designed for testing power supplies, batteries, and fuel cell systems across automotive, aerospace, and industrial applications. This single-channel instrument delivers 0–150 V input range with 0–60 A current capability and 350 W maximum power dissipation. The 4.3-inch TFT LCD display provides real-time visualization of voltage, current, power, and operating parameters.
Technical Specifications
DC input voltage spans 0 to 150 V with minimum operating voltage of 1.3 V at 60 A. Current resolution reaches 0.1 mA, voltage resolution 0.1 mV. Programming accuracy in CC mode (60 A range) is ±(0.05%+0.03 A); readback accuracy matches ±(0.05%+0.03 A). Current stability holds ±(0.01%±10 mA), voltage stability ±(0.01%±10 mV). Adjustable current rising speed ranges from 0.001 A/μs to 5 A/μs, with maximum rates dependent on input voltage: 5 A/μs above 5 V, 2.5 A/μs above 4 V, 0.1 A/μs above 2 V.
– Key Features
• Four static operating modes: Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), Constant Power (CP)
• Three dynamic modes—Continuous, Pulsed, Toggled—with frequency capability up to 30 kHz
• List function supporting up to 512 programmable steps
• Built-in test functions: Battery Test, OCP Test, OPP Test, Factory Test, Short-Circuit Test
• Protection: Over-voltage, Over-current, Over-power, Over-temperature, and Reverse Voltage (LRV/RRV)
• Fan-cooled design; operating temperature 0℃ to 40℃, storage -40℃ to 70℃
• Dimensions 239 mm (W) × 157 mm (H) × 442 mm (D); net weight 7.58 kg
– Compatibility & Integration
Standard interfaces include RS232, USB Device, and USB Host. The DL3031A model includes integrated LAN and Digital I/O ports. Optional USB-to-GPIB module available for legacy instrument control. AC input 115 Vac±10%.
– Typical Applications
Power supply validation, battery characterization, fuel cell testing, OCP/OPP verification, and automotive electronics assessment.
