The Rigol DL3031 is a single-channel programmable DC electronic load for testing power sources, batteries, and power supplies. It operates from 0 to 150 V at up to 60 A with a total power capacity of 350 W, offering four static operating modes—Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP)—plus combined modes (CC+CV, CR+CV) and dynamic transient testing up to 15 kHz. The instrument provides precise measurement and control with 1 mA current resolution, 1 mV voltage resolution, and current slew rates from 0.001 A/μs to 5 A/μs depending on input voltage. Multiple protection mechanisms safeguard against over-voltage, over-current, over-power, over-temperature, and reverse-voltage conditions.
Technical Specifications
Voltage & Current Ratings
• DC input voltage range: 0 to 150 V
• DC input current range: 0 to 60 A
• Maximum power: 350 W
• Minimum operating voltage: 1.3 V @ 60 A
Measurement Performance
• CC mode accuracy: ±(0.05% + 0.05% FS); range 0–6 A or 0–60 A
• CV mode accuracy: ±(0.05% + 0.02% FS); range 0–15 V or 0–150 V
• CR mode: 0.08 Ω–15 Ω or 2 Ω–15 kΩ
• CP mode: 0–350 W, 100 mW resolution
• Voltage readback: 0.1 mV; current readback: 0.1 mA
• Stability: ±(0.01% ±10 mA) current; ±(0.01% ±10 mV) voltage
Dynamic Capabilities
• Dynamic frequency: up to 15 kHz
• Current slew rate: 0.001 to 5 A/μs (voltage-dependent)
• Transient test function with Level A/B switching
Physical & Environmental
• Display: 4.3-inch TFT LCD
• Dimensions: 239 mm W × 157 mm H × 442 mm D
• Weight: 7.58 kg (net)
• Operating temperature: 0°C to 40°C
• AC input: 115 Vac ±10% or 230 Vac ±10%, 50/60 Hz; <30 VA max
• Cooling: Fan cooled
– Key Features
• List operation function for complex multi-step test sequences
• Combined static modes enable simultaneous voltage and current limiting
• Four independent protection layers (OV, OC, OP, OT, reverse polarity)
• High-frequency dynamic mode option (30 kHz available)
• Temperature coefficient tracking: 100 ppm/°C (CC), 50 ppm/°C (CV)
– Typical Applications
• Battery and fuel cell charger characterization
• Power supply load testing and stability analysis
• Transient response evaluation of switching regulators
• Efficiency measurement of DC-DC converters
• Pulsed-load simulation for mobile device testing
– Compatibility & Integration
The single-output design suits bench-top and ATE integration. Programmable control via list mode supports automated test sequences without external stimulus hardware.
