Digital 3-Phase Power Meters provide low-power testing solution.

Press Release Summary:

Two-channel PW3336 and 3-channel PW3337, 3-phase AC/DC digital power meters take direct-input measurements of currents of up to 65 A while maintaining measurement accuracy of 0.15%. With optional clamp sensor, power meters can also measure up to 5,000 A ac. Devices have built-in harmonic analysis to provide GP-IB, LAN, D/A output, and other interfaces, meeting various testing requirements. They are suited for applications such as motor, inverter, and power conditioner evaluations.

Original Press Release:

HIOKI Launches 3-Phase Digital Power Meters for Electronics and Appliance R&D and Manufacturing

HIOKI E.E. CORPORATION is pleased to announce the launch of two new digital 3-phase Power Meters Models PW3336 and PW3337

Manufacturers of consumer electronics such as household appliances and audiovisual devices as well as industrial equipment such as servers, machine tools and large air-conditioning systems are competing to improve the energy-saving performance of their products. This drive toward energy efficiency demands power measuring equipment with a high degree of measurement precision for use in assessing energy savings, power consumption, and energy efficiency. Similar needs are present in power research in which engineers evaluate the characteristics of the electrical circuits in motors, inverters, power conditioners, and other energy-saving devices in efforts to lower power consumption. HIOKI's two-channel PW3336 and three-channel PW3337 three-phase AC/DC digital power meters were developed in response to these stringent needs.

"Economical and social changes surrounding energy have called for the need to rationalize the continued use of our natural resources as well as ensuring their effective utilization," said Hidehiko Sunohara, Manager of Power Meter Research & Development. "This has led many businesses engaged in the development of power-hungry industrial equipment and household appliances and electronics to compete fiercely so as to be the number one provider of the highest efficiency products that absolutely minimize power consumption. The new PW3336 and PW3337 three-phase power meters offer the fine precision, direct input functionality and large current sensing capabilities required to drive these rigorous development processes, especially in areas of motor, inverter and power conditioner evaluations."

Both Hioki digital power measuring devices can take direct-input measurements of large currents of up to 65A while maintaining measurement accuracy of 0.15%. Used with an optional clamp sensor, the power meters can also measure up to 5000A AC. In addition to built-in harmonic analysis functionality, the PW3336 and PW3337 Power Meters provide GP-IB, LAN, D/A output and other interfaces to better accommodate a variety of testing situations.


Established in 1935, HIOKI E.E. CORPORATION (TSE: 6866) has grown to become a world leader in providing consistent delivery of test and measuring instruments through advanced design, manufacturing, and sales and services. By offering over 200 main products characterized by safety and quality while meeting an expansive range of applications, we aim to contribute to the efficiency and value of our customers' work in research and development, production and electrical maintenance. HIOKI products and services are available around the world through our extensive network of subsidiaries and distributors. Information about HIOKI is available at

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