Yokogawa 2533 Yokogawa 2533 Multiphase AC Power Monitor

The Yokogawa 2533 Multiphase AC Power Monitor is a precision digital power meter engineered for accurate measurement of effective power across distorted waveforms in production, research, and development environments. The instrument measures AC voltage, AC current, and power with true RMS capability, and selected models support DC voltage and current measurement. It computes apparent power, reactive power, and power factor from measured values, with simultaneous three-parameter display capability.

Technical Specifications

Voltage & Current Measurement

• AC Voltage: 3 V to 600 V across six selectable ranges (30, 60, 100, 150, 300, 600 V)


• AC Current: 100 mA to 30 A; standard ranges include 0.5 A, 1 A, 2 A, 5 A, 10 A, 20 A


• DC models: 1 A to 20 A current range; DC voltage superimposable on AC signals Power Measurement & Accuracy


• Single-phase power: 300 mW to 18 kW


• Three-phase, three-wire power: Up to 36 kW


• AC meter accuracy: ±(0.1% of reading + 0.1% of range)


• DC/AC meter accuracy: ±(0.1% of reading + 0.2% of range) Waveform & Frequency Specifications


• True RMS measurement via Yokogawa's log RMS-to-DC conversion system; supports distorted, triangular, and square waveforms


• Standard frequency range: 10 Hz to 20 kHz


• With /FRQ option: 10 Hz to 200 kHz (filter OFF) or 2 Hz to 500 Hz (filter ON)


• DC/AC models: 10 Hz to 30 kHz


• Frequency measurement accuracy (/FRQ): ±(0.1% + 1 digit), 10.00 Hz to 200.0 kHz display range

Key Features

• Simultaneous display of three measured or computed parameters


• PT/CT scaling for direct readings when using external transformers


• Integrator function available via /INTEG option


• Single-phase and three-phase four-wire configuration support

Typical Applications Production line power quality assessment, R&D power consumption testing, distorted waveform analysis, transformer and circuit characterization.

Compatibility & Integration External Potential Transformer (PT) and Current Transformer (CT) compatible with ratio entry for scaled measurements.