Improve Power Quality Troubleshooting with the Hioki PQ3198
Power quality issues can be difficult to diagnose because the most important events are often intermittent, fast, and spread across multiple parameters at once. The Hioki Power Quality Analyzer PQ3198 is designed to help engineers, maintenance teams, and facility operators investigate power characteristics, record anomalies, and analyze the causes of electrical problems with greater confidence. Hioki positions the PQ3198 as a portable Class A power quality analyzer for monitoring and recording supply anomalies such as voltage dips, swells, flicker, harmonics, and other power-related disturbances.
One of the PQ3198’s strongest advantages is its standards-based performance. Hioki states that the instrument verifies power problems in accordance with IEC 61000-4-30 Edition 3 Class A, supporting gapless continuous calculation, event detection, and optional GPS time synchronization for comparable measurements across devices. The analyzer also supports IEEE 519 compliance harmonics measurement, with bundled software to help generate harmonic measurement reports.
The PQ3198 is built to capture both long-term trends and fast events. According to Hioki, it can log trend data for up to one year and record up to 9,999 power quality anomalies while simultaneously performing power logging and waveform capture. The instrument measures a wide range of parameters at once, including power, harmonics, transient voltages, voltage swells, dips, interruptions, frequency fluctuations, inrush current, unbalance, and high-order harmonics.
For advanced applications, the PQ3198 also supports supraharmonic measurement from 2 kHz to 80 kHz and transient voltage measurement up to 6000 V with events as short as 0.5 μs at 2 MS/s. Hioki also highlights its isolated fourth voltage channel, which allows power and efficiency measurement across two separate circuits. This is useful for applications such as inverter evaluation and EV rapid charger input/output analysis.
Another practical strength is ease of use. Hioki includes preset configurations, automatic wiring checks, and PQ ONE software for data analysis and report generation. These features help simplify setup, reduce user error, and improve the efficiency of power quality investigations in the field.
For utilities, industrial plants, commercial facilities, and service teams responsible for maintaining reliable power systems, the PQ3198 provides a practical tool for troubleshooting, compliance verification, and ongoing energy management. Its combination of Class A accuracy, gapless recording, high-speed transient capture, and flexible reporting makes it a strong solution for serious power quality work.
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