Keysight (Agilent) EL34143A Bench Electronic Load, Single Input 150V, 60A, 350W

The Keysight EL34143A is a single-input bench electronic load rated for 350 W that characterizes and tests DC power sources and components across voltage and current ranges of 0–150 V and 0–60 A. The instrument operates in four modes: Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP), with CC programming accuracy of ±(0.04% of output + 12 mA) at the 60 A range and readback accuracy of ±(0.04% of output + 9.6 mA). Built-in voltmeter and ammeter provide simultaneous voltage and current measurements without external shunts or cables.

The scope function digitizes voltage and current waveforms at 200 kHz with up to 256k samples, enabling transient analysis without additional test equipment. A data logger captures voltage, current, and energy continuously with adjustable sample intervals from 20 μs to 60 seconds, storing up to 10,000 hours or 5 MB of data to internal non-volatile RAM or external USB with .CSV export capability. Dynamic load profiles via LIST function allow creation of complex sequences, pulses, and toggles to simulate real-world operating conditions.

Battery test mode optimizes battery characterization with precise voltage and capacity control. The EL34143A integrates USB and LAN (LXI Core) connectivity, with optional GPIB available for system integration. Part of Keysight’s EL30000 Series, this compact bench load suits applications from consumer power supplies to wide-bandgap semiconductor component testing.

– Technical Specifications

• Input type: Single input
• Maximum input power: 350 W
• DC voltage range: 0–150 V
• DC current range: 0–60 A
• Operating modes: CC, CV, CR, CP
• Battery test mode: Available

– Key Features

• Integrated voltmeter and ammeter for simultaneous measurements
• Scope function: 200 kHz digitizer, up to 256k samples, captures voltage and current waveforms
• Data logger: Adjustable sample interval (20 μs to 60 s), stores up to 10,000 hours or 5 MB, .CSV export
• Dynamic load profiles via LIST function for complex test sequences
• CC readback accuracy (60 A range): ±(0.04% of output + 9.6 mA)
• CC programming accuracy (60 A range): ±(0.04% of output + 12 mA)

– Typical Applications

• Consumer power supply testing and characterization
• Wide-bandgap semiconductor component evaluation
• Battery testing and validation
• Transient load profiling and waveform capture

– Compatibility & Integration

• USB connectivity
• LAN (LXI Core)
• Optional GPIB interface