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Yokogawa WT500
Power Analyzer, Single Phase and Three Phase

Electrical Test and Power Analyzers >> Power Analyzers >> Power Analyzer, Single Phase and Three Phase
Rent Used Test Equipment
Manufacturer: Yokogawa
Model: WT500

Yokogawa WT500 Power Analyzer, Single Phase and Three Phase

Electronic Test and Measurement Equipment

Yokogawa WT500 Power Analyzer, Single Phase and Three Phase Product Datasheet Download Product Datasheet

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Available Option Configurations


  • C1 - GPIB Interface
  • C7 - Ethernet Interface
  • DT - Delta Computation
  • EX3 - External Sensor Input for WT500-760203
  • FQ - Add-on Frequency Measurement
  • G5 - Harmonic Measurement
  • WT500-760203 - 3 Input Element Version of WT500 w/ USB Interface & Memory Ports
  • MSRP: $12,260 | Available for Rental    GET QUOTE  

Product Overview

RENT YOKOGAWA WT500 Power Analyzer (call for availability)

The Yokogawa WT500 Power Analyzer is a Mid Range product for single phase and three phase power 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 interfaces 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.

As internet and personal computer usage expand at exponential rates, so does a growing demand for energy efficient computers and servers. Leading this movement is the Standard Performance Evaluation Corporation (SPEC), who publishes benchmarks that evaluate the power and performance characteristics of volume server class and multi-node class computers. SPEC is a non-profit corporation, formed to establish, maintain and endorse standardized benchmarks for the latest generation of high-performance computers.

The SPECpower_ssj2008 V1.10 Industry-Standard Benchmark is the first of its kind. This benchmark measures power consumption in relation to the performance of server-class computers. It makes use of highly accurate Power Analyzers to make these power measurements. Some of the key requirements of the Power Analyzers listed by SPEC are:

  • Over all measurement accuracy of 1 % or better
  • Store measurements to an external device at a rate = 1/sec
  • Crest Factor of at least 3 or greater
  • Start and Stop recording/logging from an external controller
  • Analyzer calibration must be traceable to NIST (U.S.A)

The Yokogawa WT500 Power Analyzer is listed and endorsed as an accepted device by SPEC for performing these accurate power measurements. With a bandwidth of DC and 0.5 Hz to 100 kHz, the Yokogawa WT500 Power Analyzer offers a base accuracy down to 0.1 %. The meter can be controlled by an external controller using USB, GPIB or Ethernet communication interfaces and can provide update rates as fast as 10/sec (100msec).

Features and Specifications of the Yokogawa WT500 Power Analyzer include:

  • 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)
  • Deltal 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


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