The Yokogawa PX8000 Precision Power Scope is a 12-bit, 100 MS/s power measurement instrument engineered for high-accuracy, time-based analysis of instantaneous voltage and current waveforms. It bridges traditional power analyzers and oscilloscopes, delivering ±(0.1% of reading + 0.1% of range) basic power accuracy across 45 Hz to 66 Hz. The instrument displays up to 16 waveforms simultaneously on a 10.4-inch TFT LCD and captures transient phenomena with oscilloscope-level precision, making it essential for research and development in renewable energy, power electronics, motor drives, and high-efficiency inverter development.
Technical Specifications
Measurement Engine
• A/D Converter: 12-bit resolution
• Sampling Rate: Up to 100 MS/s
• Basic Power Accuracy: ±(0.1% of reading + 0.1% of range) at 45–66 Hz
• Display: 10.4-inch TFT LCD, 1024×768 XGA
• Simultaneous Waveforms: Up to 16
Voltage Measurement
• Bandwidth: DC and 0.1 Hz to 20 MHz (–3 dB, typical)
• Input Ranges: 1.5/3/6/10/15/30/60/100/150/300/600/1000 Vrms (direct input)
Current Measurement
• Direct Input Bandwidth: DC and 0.1 Hz to 10 MHz (–3 dB)
• Sensor Voltage Input Bandwidth: DC and 0.1 Hz to 20 MHz (–3 dB)
• Direct Input Ranges: 10 mA to 5 Arms
• External Sensor Input Ranges: 50 mV to 10 Vrms
Power & Supply
• Power Consumption: Maximum 200 VA (up to 400 VA with /PD2 option)
• Rated Supply: 100–120 VAC / 220–240 VAC (auto-switching)
• Rated Frequency: 50/60 Hz
• Withstand Voltage: 1500 VAC for one minute
• Insulation Resistance: 10 MΩ minimum at 500 VDC
– Key Features
• Real-time power sampling through simultaneous voltage and current multiplication
• Transient power measurement and cycle-by-cycle trend analysis (up to 4 million points)
• Harmonic analysis supporting harmonics to the 500th order
• 2-channel FFT analysis for frequency-domain inspection
• Frequency measurement: ±0.1% accuracy, 5 MHz maximum, full 5-digit display resolution
• Harmonics measurement fundamental frequency range: 20 Hz to 409.6 kHz (PLL source)
• Specific time-period measurement via cursor-defined intervals
• De-skew function for waveform alignment
– Typical Applications
• Power electronics and converter design validation
• Motor drive efficiency and transient analysis
• Renewable energy system characterization
• High-efficiency inverter development and commissioning
• Harmonic distortion assessment in complex load environments
– Physical Specifications
• Weight: Approximately 6.5 kg (without certain options)
