Power Measurement Application Software

Yokogawa's Power Analyzer software manages numeric, waveform, and harmonic data measurements. It enables data logging and instrument configuration from your computer.

  • IS8000 test and measurement software that integrates data
  • Fast data for efficient product development
  • Synchronized measurements
  • Add-on software packages

WTViewerE software enables PC connectivity for Yokogawa power analyzers such as the WT5000, WT3000E/ WT3000, WT1800E/ WT1800 , WT500 and WT300E/WT300 through Ethernet, USB, GPIB or RS232. This connectivity allows users to easily control, monitor, collect, analyze, and save measurements remotely.

The WTViewerFreePlus software captures measured numeric values, harmonic values, and waveform data. Users can view and save data on a PC using USB, GPIB, RS-232, or Ethernet.

The WTViewerEfree is free software for power analyzer models that include WT series*. The software simplifies instrument configuration and gathering of measurements.

*WT5000/ WT3000E/ WT3000/ WT1800E/ WT1800/ WT500/ WT300E/ WT300

The WTViewer is an application software tool that reads numeric, waveform, and harmonic data measured with the WT3000E /WT3000 /WT1800E /WT1800 /WT500 Digital Power Analyzer.

The PowerViewerPlus (part #760811) enables PC-based remote control, acquisition and analysis of high-frequency and transient power signals from a PX8000 Precision Power Scope.

For use with WT3000, WT1800, WT500, WT210 and WT310. Conforms to IEC62301 Ed2.0(2011) and EN 50564:2011 testing methods.

761922 Harmonic/Flicker Measurement Software


We have added a harmonics current/flicker measuring function to the WT3000 Precision Power Analyzer with world-leading accuracy of power measurement. We have also created PC software for harmonics current/flicker measurement. This PC software and the WT3000 comply with the IEC61000- 3-2 harmonics current standard and IEC61000-3-3 voltage fluctuation/flicker standard, thus enabling the electrical power, harmonics current and flicker of electrical equipment to be measured precisely with a single unit. This paper outlines the harmonics current standard and voltage change/flicker standard, along with the measurement principle and PC-based software of the WT3000.

  • Electric Motor Power Measurement and Analysis
  • Improving/optimizing electric motor performance and efficiency
  • Understand how electric current is measured

Following Yokogawa’s launch of the complete standby power measurement consumption package, we are now diving into the background details on the standards and highlight the growing concern. This article shows how various standardisation bodies are trying to tackle the issues around it and manufacturers are beginning to respond.

Media Publication
2.3 MB

Many industry trends are conspiring to make power analysis an important consideration for designers. The New Electronics editor takes a look at this expanding arena by talking to Hafeez Najumudeen of Yokogawa.

Media Publication
1.5 MB

The Yokogawa WT210 power analyzer was used by "The Tech Report - PC Hardware Explored" to measure power consumption under load for two articles (Intel's Xeon 5600 processors and Nvidia GeForce GTX 480 and 470 graphics processors).  The WT210 is a high accuracy power meter that meets with SPEC's approval and integrates seamlessly with the SPECpower_ssj power measurement components.


After a disastrous 2009, the large publicly held test companies enjoyed booming business in 2010.


Can Xviewer.exe be run as multiple instance?   No - not at this time. Xviewer can not control two or more DL850 chassis. Xviewer can not connect to two or more instruments at the same time. Two or more Xviewer ...


The following softwares have been tested for Windows 7 compatibility. WTViewer Xviewer SL1000 Acquisition Software USB Instrument Drivers for all USB supported instruments TMCTL Library Files for programming with VB, ...

When using WTViewerFree to automatically save data in CSV format, a lack of memory may occur due to increasing load on anti-virus software such as Virus Buster. As the data save time becomes longer, the CSV file will ...

To programmatically read all 500 harmonic orders measurement values, please use the ":NUMERIC:LIST" command set. The maximum number of items for the :NUMERIC:LIST:VALUE? command is 64.  However, 1 LIST ITEM can ...

It is possible to lock out all the keys, including LOCAL, on the WT210/WT230 using a GPIB specific or controller specific command.For the GPIB controller from National Instruments, the command is called LLO or Local ...
If you want to know the condition of the "Check Range" LED indicator for voltage and current, you will need to read three bits in the Extended Event Register. "Bit-6", "Bit-7", and "Bit-8" needs to be read to know the ...

Although WTViewer is not officially supported under the Linux environment, users have successfully done so using WINE (flavor of Linux) via RS232. For connectivity to WT210/WT230, WTViewer requires that the meter be set ...


The IEC Harmonic analysis on the DL/DLM series oscilloscopes provides a rough analysis and estimation for harmonic testing. The scope will perform an FFT on the current waveform and can be used to measure the general ...


To use USB interface on the WT500 and WT1800 Power Analyzer from NI LabVIEW environment, you will need to use the USB driver from National Instruments. This USB driver is usually installed when you install NI-VISA and is called the ...

There are several items you will need to check and verify to solve this issue. Verify the GP-IB connectionSome instruments have a D/A output connector located next to the GP-IB connector. There have been some ...
You can use the Power Viewer (Model 253734) software. However if you only need to view waveforms, we recommend you use the Waveform Viewer (Model 700919, version 1.23 or later) software. The trial version of the Power ...

When making a WT230 Digital Power Meter RS232C connection using GateWT, please verify the following RS232C communication settings on the instrument: Mode = 488.2 Hand = 0 For = 0 Baud Rate = 9600 Terminator Cr+Lf Even though you can run ...

You can read the average active power during continuous integration mode (just before the integral resets) for the WT230, by monitoring the status of the ITG or ITM bits of the extended event register.   Bit 1 ITG is ...
Yes, you can use DL Term with the WT1800 using an Ethernet (VXI-11) or USB connection.
For the WT1600, to view the harmonic data in the Bar Graph window of WTViewer, you have to select all the harmonic orders in the Numeric window. WTViewer's Bar Graph window display follows the harmonic items activated ...
  • WTViewer Save Setting feature will only save WTViewer setting information
  • Will NOT save the setting information of the instrument
Infographic: Getting started with electrical power measurements  
(Infographic: Getting started with electrical power measurements)
Edition 2017

Energy efficiency directives from bodies like International Electro technical Commission (IEC), European commission, California Energy Commission (CEC) and others govern standards across various classes of electrical, electronic and mechatronic equipment.

This infographic provides a snapshot guide for making reliable power measurements across your product development lifecycle with particular emphasis on the high accuracy needs of compliance testing. 


This training module covers the following topics:

  • Introduction & Installation
  • Connecting to Instrument
  • Setup, Measure, and Analyze
  • File Operations: Saving and Loading Data
  • Video Demonstrations
Download eBook: Electricity Applied - A handbook of common applications and key measurement parameters  
(Electricity Applied - A handbook of common applications and key measurement parameters)
Edition 2017

Product Overviews


    The IS8000 Integrated Software Platform software platform is an integrated solution that accelerates engineering workflow. It is a revolutionary software that tightly integrates the timing, control, and data collection from multiple instruments, creating a comprehensive measurement suite that delivers confidence, efficiency, and unity.


    Test and measurement engineering work groups can have differing priorities and requirements, which often results in multiple instrumentation systems and data file formats, as well as incompatible reporting. This lack of effective communication between groups and instruments causes decreased efficiency and quality and increased spending and time to market. Unify test and measurement instrumentation, software, and data across engineering teams with a suite of solutions that caters to the different needs of engineering work groups, including accurate power data, fast sampling rates, long recordings of multiple different input types, and insights into waveform data.




    Although DC power measurements can be fairly straightforward, complexities with AC power measurements arise when dealing with distorted waveforms, fluctuating power factors, and multiple phases, which introduce intricacies that complicate an otherwise simple measurement process.

    This on-demand webinar provides an informative dive into the various fundamental aspects of power measurement and includes:

    • A look at multi-phase measurements and measurement techniques
    • A review of practical applications
    • Real-world examples

    While DC power measurements are relatively straight forward, AC power measurements that include distorted waveforms, varying power factors, and multiple phases can add complexity to an otherwise simple measurement. During this webinar, we cover multiple fundamentals of power measurement.

    Key topics include:

    • Multi-phase measurements
    • Measurement techniques
    • Measurement applications
    • Real-world examples and more

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