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WT330

The Yokogawa WT330 is a high-performance digital power meter that delivers enhanced accuracy and functionality for a wide range of power measurement applications. With improved specifications over the WT310, it offers ±0.1% power accuracy and supports frequencies from DC to 100 kHz, making it suitable for both basic and intermediate power measurement needs.

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Parameters
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Specifications
Parameter Specification
Model Yokogawa WT330
Input Elements 1 element
Power Accuracy ±0.1% of reading (40-66 Hz)
Voltage Range 15/30/60/150/300/600 V (6 ranges)
Current Range 0.5/1/2/5/10/20 A (6 ranges)
Bandwidth DC, 0.5 Hz to 100 kHz
Basic Accuracy ±0.1% reading + ±0.1% range (40-66 Hz)
Power Factor Range 0.00 to 1.00
Harmonic Measurement Up to 50th order
Integration Function Energy measurement (Wh, Ah)
Data Update Rate 200 ms (5 readings/s)
Display 5-digit LED display
Interfaces Optional GPIB or RS-232
Operating Temperature 0°C to +40°C
Dimensions (W×H×D) 215 × 106 × 307.5 mm
Weight Approx. 3.5 kg
Key Features
Enhanced accuracy for reliable power measurements

Wide frequency range up to 100 kHz

Improved harmonic measurement up to 50th order

Faster data update rate (200 ms)

Compact and portable design

Simple operation with intuitive interface

Optional communication interfaces for remote control

Measurement Functions
Voltage (RMS, mean)

Current (RMS, mean)

Active power (W)

Reactive power (VAR)

Apparent power (VA)

Power factor

Phase angle

Frequency

Harmonic measurement (up to 50th order)

Energy integration (Wh, Ah)

Advanced Capabilities
Better harmonic analysis compared to WT310

Improved measurement speed

Enhanced accuracy across wider frequency range

Superior noise immunity

Extended measurement functions

Typical Applications
Power supply efficiency testing

Motor and drive system evaluation

Electrical product quality verification

Educational laboratory experiments

Production line testing

Service and maintenance applications

Energy consumption monitoring