Description
Hioki PW3337 Meter for Accurate 3-Phase Power Measurement
The Hioki PW3337 Meter is a versatile 3-channel AC/DC power meter designed for accurate power measurement across a wide range of electrical equipment. From single-phase devices such as household electronics and battery-driven devices to three-phase industrial systems, the PW3337 delivers precise and reliable measurements. Its advanced features and high accuracy make it ideal for both research, development, and production environments.
Reliable Measurement Across Multiple Systems
The PW3337 supports DC, single-phase 2-wire, single-phase 3-wire, 3-phase 3-wire, and 3-phase 4-wire measurements. With a basic accuracy of ±0.1%, it ensures high-precision readings across voltage ranges from 0.15 V to 1000 V and currents from 2 mA to 65 A directly, while optional sensors extend the range up to 5000 A. The wide frequency bandwidth (DC to 100 kHz) enables detailed evaluation of inverter outputs, motors, power conditioners, and power supplies.
Advanced Harmonic and Multi-Unit Functionality
The PW3337 includes harmonic analysis up to the 50th order in compliance with IEC 61000-4-7. High-accuracy measurements are maintained even at low power factors, making it suitable for no-load testing of transformers and motors. Up to 8 units can be synchronized for multi-unit measurements, and two PW3337 units can be combined using the free PC application to create a 6-channel power measurement setup.
User-Friendly and Efficient
With refresh rates ranging from 5 times per second to 20 seconds, the PW3337 allows flexible data acquisition. Its compact design (305 × 132 × 256 mm) and lightweight 5.6 kg body enable easy installation in laboratory, production, or field environments. Optional built-in GP-IB and D/A output expand connectivity for automated testing systems.
Technical Specifications
| Specification | Details |
| Product Name | Hioki PW3337 3-Channel AC/DC Power Meter |
| Measurement Lines | Single-phase 2-wire, single-phase 3-wire, 3-phase 3-wire, 3-phase 4-wire |
| Voltage Range | 0.15 V to 1000 V AC/DC |
| Current Range | Direct input: 2 mA to 65 A AC/DC; optional sensors up to 5000 A |
| Basic Accuracy | ±0.1% (Active power, DC & AC) |
| Frequency Bandwidth | DC to 100 kHz |
| Harmonics | Up to 50th order (IEC 61000-4-7) |
| Multi-Unit Synchronization | Up to 8 units; 6-channel via PC application |
| Data Output | Built-in GP-IB, LAN, RS-232C; D/A output for selected models |
| Measurement Items | Voltage, Current, Active/Reactive/Apparent Power, Power Factor, Efficiency, Harmonics, Waveforms |
| Dimensions | 305 × 132 × 256 mm |
| Weight | 5.6 kg |
| Ideal Applications | Motors, inverters, power conditioners, industrial power supplies |
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