Agilent/Keysight 6811C DC Power Supply

The Keysight 6811C is a dual-function AC/DC power source and integrated analyzer for precision power testing and waveform simulation. It synthesizes arbitrary AC waveforms and DC bias across a wide voltage range while simultaneously measuring voltage, current, power, and harmonic content in real time. The instrument integrates power amplification, arbitrary waveform generation, and multi-domain analysis - equivalent to a multimeter, oscilloscope, and harmonic analyzer - into a single benchtop unit.

Built-in protection against overvoltage and overpower conditions safeguards connected loads. Communications via LXI-LAN, USB, GPIB, and RS-232 enable remote control and data acquisition in development, qualification, and compliance test environments across avionics, telecommunications, and consumer electronics sectors.

Technical Specifications

• Maximum power: 375 VA


• Voltage range: 0 to 300 Vrms


• Current (RMS): 3.25 A; (Peak): 40 A


• Frequency range: DC; 45 Hz to 1 kHz DC Output


• Maximum power: 285 W


• Voltage range: +/−425 V


• Current (RMS): 2.5 A; (Instantaneous): 40 A Measurement Capabilities


• RMS, DC, and AC + DC voltage and current


• Peak voltage and current


• Real, apparent, and reactive power


• Harmonic analysis through the 50th harmonic (amplitude and phase)


• Total Harmonic Distortion (THD)


• Triggered digitized waveform acquisition Physical & Environmental


• Dimensions: 574.7 × 425.5 × 132.6 mm


• Weight: 33 kg


• Input: 104−127 VAC (6811C/120 model)


• Operating altitude: up to 2000 m


• Max relative humidity: 85%


• Safety Class: IEC I (requires earth ground connection)

Key Features

• Overvoltage and overpower protection


• Arbitrary waveform synthesis for power line simulation and distortion testing


• Multi-domain analysis in a single instrument


• Standard LXI-LAN, USB, and GPIB interfaces plus RS-232

Typical Applications Product development and validation, power supply and battery charger testing, power quality assessment, harmonic compliance verification, industrial equipment qualification.

Compatibility & Integration LXI-LAN, USB, GPIB, RS-232.