Yokogawa WT500 Precision Power Analyzer

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Yokogawa WT500
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Manual Specifications Accessory Kit
The Yokogawa WT500 Power Analyzer is a mid-range product for single-phase and three-phase power measurements and energy monitoring. This precision power analyzer is very accurate and has been accepted and endorsed by Standard Performance Evaluation Corporation (SPEC) for accurate measurements. It is designed into a compact half-rack size chassis which can also be double rack mounted. Standard features include a color TFT display and USB interface for communications and memory. The instrument has a basic accuracy of 0.1%, maximum inputs of 1000 Vrms, 40 Arms and a measurement bandwidth of DC to 100 kHz.
Yokogawa WT500 Features
  • Simultaneous measurement of voltage, current, power, and harmonics
  • High-speed data updating (100 ms)
  • Display of numerical values, waveforms and trends
  • Measurement of bought and sold watt hours
  • Easy setup and operation
  • Basic Power Accuracy: 0.1% of reading + 0.1% of range
  • Measurement power bandwidth: DC, 0.5 Hz to 100 kHz
  • Input Elements: 1, 2, 3
  • Voltage Range (Crest Factor = 3): 15/30/60/100/150/300/600/1000(V)
  • Current range (Crest factor=3) - Direct Input: 0.5/1/2/5/10/20/40 [A]
  • Current range (Crest factor=3) - External Sensor Input: 50 m/100 m/200 m/500 m/1/2/5/10 [V] (opt.)
  • Guaranteed accuracy range for voltage and current ranges: 1% to 110%
  • Main Measurement Parameters include: Voltage, current, active power, reactive power, apparent power, power factor, phase angle, peak voltage, peak current, crest factor
  • Measurement Parameters include: Peak hold (instantaneous maximum value hold, MAX hold, Voltage RMS/MEAN simultaneous measurement, RMS/MEAN/AC/DC simultaneous measurement, Average active power (user defined), Active power amount (WP), Apparent power amount (WS), Reactive power amount (WQ), Efficiency, Frequency: 2 channels (up to 6 channels with option /FQ)
  • Sampling Frequency: 100 kS/s approximately
  • Harmonic Measurements (w/ opt. G5)
  • Delta Calculation Function: (w/ opt. DT)
  • Display Formats: In addition to numerical data, the WT500 can display input signal waveforms and trends (time variation of numerical data). Bar graph display and vector display are also available with the harmonic measurement (opt. G5)
  • Storage: 20 MB internal / 1 GB to USB
  • Interfaces, USB, GPIB (opt. C1), Ethernet (opt. C7), VGA Output (opt. V1)
  • Removable Storage: USB
Yokogawa WT500 Applications
  • Measure the energy efficiency of software
  • Measure Power Bought and Sold via Power Conditioners
  • Evaluation and Efficiency Measurements of AC Adapters and Other Products with and without Loads
  • Performance Evaluation and Testing of Home Electronics
  • Measuring Power Conversion Efficiency and Power Consumption in a Photovoltaic Generator
  • Measuring Fluctuations in Voltage, Current, Power, and Frequency of a Wind Power Generator
  • Large Current Measurements for IH Cooking Heaters
  • Standard Performance Evaluation Corporation (SPEC): Power Consumption for Server-Class Computers. The WT500 is listed and endorsed by SPEC for performing these accurate measurements