Yokogawa PZ4000 Power Analyzer

The Yokogawa PZ4000 Power Analyzer is a precision instrument for comprehensive electrical power measurement and analysis across DC to 2 MHz bandwidth. Engineered for engineers, system integrators, and laboratories requiring high accuracy, it delivers detailed insights into power parameters, harmonic distortion, and dynamic load behavior. The PZ4000 excels in testing power supplies, inverters, and electrical equipment operating at higher frequencies or with complex waveforms.

– Technical Specifications

Measurement Performance

• Measurement bandwidth: DC to 2 MHz
• Sampling rate: Maximum 5 MS/s
• Basic accuracy (45–66 Hz): Voltage/Current ±(0.1% of reading + 0.05% of range); Power ±(0.1% of reading + 0.025% of range); Power Factor Efficiency ±0.5% of S reading
• Voltage measurement range (direct input): 30/60/120/200/300/600/1200/2000 Vpk (maximum 1000 Vrms)
• Current measurement range (direct input): 0.1/0.2/0.4/1/2/4/10 Apk (5 Arms maximum)
• Current measurement range (external input): 100/200/400/1000 mVpk (maximum 500 mVrms)
• Frequency range for power measurements: Several tens of kHz to approximately 100 kHz
• Low-frequency measurement capability: Down to several mHz with optional 4 M word internal memory

– Key Features

• Waveform capture and display with real-time voltage and current analysis
• Harmonic analysis up to the 500th order across voltage, current, active power, apparent power, and reactive power
• Fast Fourier Transform (FFT) analysis up to 2.5 MHz for high-frequency power spectrum evaluation
• Dynamic load fluctuation measurement for time-domain load variation tracking
• Delta computation function for fluorescent ballast and cathode current analysis
• Motor efficiency evaluation with optional torque and speed sensor input
• Vector display for 3-phase systems showing fundamental components of distorted waveforms
• Expandable internal memory: Standard 100 K word, upgradeable to 4 M words

– Typical Applications

Power supply characterization, inverter evaluation, harmonic distortion assessment, motor performance testing, and electrical component validation in frequency ranges from several tens of kHz to approximately 100 kHz.