Specifications
Channels
4 input channels
Basic Power Accuracy
±0.04%
Measurement Band
200 kHz
Sampling
500 kS/s, 16-bit A/D
Phase Resolution
Virtual oversampling equivalent to 200 MS/s
Phase-Shift Correction
0.01° resolution (current-sensor correction)
Data Refresh Rate
50 ms
Frequency Tracking
From 0.5 Hz, automatic
Max Current
4000 A AC/DC (with clamp sensors)
Large-Current Mode
Up to 6000 A on 50/60 Hz lines (CT7040 flex sensors)
Synchronised Units
Up to 8 units (32 channels) via 9683 cable
Noise Analysis
Frequency analysis to 100 kHz, top-10 points
Order Codes
PW3390-01, PW3390-02, PW3390-03
Operating Temperature
−10 to 40°C (extended for WLTP)
Certification
JCSS DC power measurement (ISO/IEC 17025)
Applications
Inverter, motor, WLTP, environmental power
Overview
The Hioki PW3390 is a high-precision, broad-range benchtop power analyzer for measuring electrical power from DC to inverter frequencies. Four input channels support single- and three-phase inverter motor systems up to 4000 A AC/DC with ±0.04% basic accuracy and a 200 kHz measurement band.
A 500 kS/s, 16-bit digitizer combined with virtual-oversampling phase correction (equivalent to 200 MS/s) and 0.01° phase-shift resolution enables accurate measurement of high-frequency, low-power-factor power at inverter switching frequencies — a task conventional analyzers struggle with. Transient power, harmonics, waveform display and noise analysis are computed in parallel at a 50 ms refresh rate.
Key Benefits
Bench-class accuracy in the field: ±0.04% basic accuracy in a small, light chassis. Fast and parallel: 500 kS/s sampling with simultaneous transient, harmonic, waveform and noise engines. Scales: synchronise up to 8 units for 32 channels. EV-ready: WLTP fuel-economy support and JCSS DC power certification.
Applications
Inverter output and motor efficiency analysis, EV/HEV WLTP fuel-economy testing, field and environmental power measurement, solar power-conditioner evaluation, and multi-cable large-current measurement.
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