









Hioki PW3390 Power Analyzer
The PW3390 is a high-precision, portable 4-channel power analyzer designed for measuring electrical power from DC up through high frequencies. It features excellent accuracy, broad bandwidth, synchronized multi-channel capability, and is suited for inverter, motor, and efficiency testing including standards like WLTP.
Description
The PW3390 is a compact yet powerful instrument built to capture detailed power measurements in demanding applications. It supports up to four independent input channels, letting you monitor both inputs and outputs or multiple phases of a system simultaneously. It delivers very high accuracy in power measurement (around ±0.04%) over a wide frequency band extending up to 200 kHz, with flat amplitude and phase response through that range. The analyzer includes sample refresh rates around 50 ms so it can follow transient behavior, plus optional capabilities for motor analysis (torque, rotation speed, electrical angle, slip) and analog/digital (D/A) waveform outputs. It works with a variety of current sensors (clamp, pass-through, direct wire) to handle a large current range; supports single-phase and three-phase (3- or 4-wire) circuits; provides interfaces for LAN, USB, external control, synchronization, and storage media; and is built to be usable in field or lab settings thanks to its relatively lightweight and rugged design.
Features
- Basic power accuracy of about ±0.04% over rated conditions.
- Frequency measurement band from DC up to 200 kHz, with flat response in amplitude and phase across that band.
- Four measurement channels allowing simultaneous monitoring of multiple circuits or phases.
- Fast data refresh or transient response (~50 ms) to capture changing or switching behaviors.
- Motor analysis option: measures torque, rotation speed, slip, electrical angle, etc.
- Support for multiple types of current sensors (clamp, pass-through, direct-wire) to cover wide current ranges.
- Digital/analog output option (D/A) for waveform and analog signals for further processing or external logging.
- Interfaces for external control, synchronization, and data transfer (LAN, USB, etc.).
- Capability for synchronized measurements across multiple units (up to 8 units, giving up to 32 channels).
- Designed to meet standards such as WLTP for vehicle/inverter efficiency testing.
Includes
- Instruction Manual ×1
- Power cord ×1
- Measurement Guide ×1
- USB cable ×1
- Input cord label ×2
- D-sub connector × 1 (PW3390-02, PW3390-03)










