The HP/Agilent 6812A is a single-phase AC power source and analyzer combining power amplification, arbitrary waveform generation, and harmonic analysis in one instrument. It delivers up to 750 VA with output voltage control from 0–300 Vrms and current delivery to 6.5 A (at 300 Vrms) or 13 A (at 150 Vrms). The unit generates sine, square, clipped sine, and up to 12 user-defined arbitrary waveforms with maximum harmonic distortion of 0.25% at 50/60 Hz. Transient modes support step, pulse, and list-based waveform programming with voltage and frequency slew control. DC output capability extends to 425 V DC at 5 A DC.
## Technical Specifications
• Maximum output power: 750 VA
• Output voltage range: 0–300 Vrms single-phase
• Output current: 0–6.5 A (300 Vrms range) or 0–13 A (150 Vrms range)
• Operating frequency: DC; 45 Hz to 1 kHz
• Total harmonic distortion: 0.25% at 50/60 Hz; 1% worst case 45 Hz to 1 kHz
• Clipped sine distortion: 0% to 43% programmable
• DC output: 0–425 V DC at 0–5 A DC
• Measurement resolution: 16-bit
• Harmonic analysis: Up to 50th harmonic (output frequencies ≤ 250 Hz)
• Line regulation: 0.1%
• Load regulation: 0.5%
• Constant voltage ripple: −60 dB
• Panel height: 5.25 inches
## Key Features
• Sine, square, and clipped sine waveforms plus 12 user-defined arbitrary shapes
• Real-time measurement of RMS voltage/current, DC components, peak values, real/apparent/reactive power
• Programmable voltage, current limit, frequency, phase, and distortion
• Step, pulse, and list-mode transient generation with slew control
• Built-in HP-IB (IEEE-488) and RS-232 with SCPI programming
## Typical Applications
• Power supply and UPS testing
• Avionics automatic test equipment (ATE)
• Power-factor-corrected equipment validation
• Regulatory compliance testing
## Compatibility & Integration
Standard input: 120 Vac single-phase, 47–63 Hz. Optional input configurations available: 87–106 VAC (Option 100), 191–254 VAC (Option 230), or 100–120 Vac unterminated wire (Option 834).
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