Harmonic Analysis Software For WT1000/WT2000 series


WT1000 Series: perform harmonic analasis conforming to the IEC1000-3-2 standard. This software does not have the capability to distinguish the class (based on the IEC standard) of the item being measured by the level of the higher harmonics. However, you can enter the WT1000/WT2000's voltage and current range settings, and change the display in the instrument's front panel.


WT2000 Series: perform harmonic analasis conforming to the IEC1000-3-2 standard.
Allows you to perform hours of continuous measurement, 16 cycles at a time, and make evaluations at 2.5 minute intervals. In particular, you can simultaneously measure 3 phases, and this provides even more uses for the instrument. The general functions of this software allow you to enter the voltage and current range, and other settings in the instrument's display panel.




Applicable Model

WT1030M, WT1010, WT1030, WT2010, WT2030

System Requirements

PCA PC with a 80486DX2 CPU or later (Pentium or later recommended), and 8 MB or more of memory.

Operating system: Windows 98, Windows Me, Windows 2000 Professional, or Windows XP
Floppy disk drive: 3.5" floppy disk drive using 1.44 MB (MS-DOS compatible) type disks
Hard disk: A hard disk drive with 10 MB of available free space
Video adapter: A video adapter capable of displaying at 640 x 480 or higher resolution (1024 x 768, 16 bit color or higher recommended)
Display: VGA and Windows compatible display capable of displaying 256 colors (RGB) or more
Printer: Any device compatible with Windows
Mouse: Any device compatible with Windows
Communications interface: GP-IB: a GP-IB adapter by National Instruments (AT-GPIB, AT-GPIB/TNT, or PCMCIA-GPIB)
RS-232: a built-in port, or COM1 or COM2 exclusive (COM1 only for PC9801 or PC9821)

Connecting the WT Series Instrument to a PC

GP-IB Interface to prevent electric shock, turn the power to the instrument OFF when connecting it to the PC. Connect a GP-IB cable from the GP-IB connector on the rear panel of the WT series instrument to the corresponding connector on the PC.

  • Setting the Address
    Set the GP-IB address according to the procedure given in the user's manual that came with the WT series instrument. For details about the GP-IB interface, refer to the information about the communications functions included in the user's manual.
  • RS-232C Interface
    To prevent electric shock, turn the power to the PC OFF when connecting the instrument to it. Connect an RS-232 cable from the RS-232 connector on the rear panel of the WT series instrument to the serial port of the PC.
  • Parameter settings
    Follow the procedure given in the user's manual of the WT series instrument to enter the following parameter settings. (Normally, operation can begin using the factory default settings.)
    Handshaking: select a method from 0 to 7.
    Data format: select a format from 0 to 3.
    Baud rate: select 75, 150, 300, 600, 1200, 2400, 4800, or 9600.
    Terminator: select CR+LF, CR, or LF.
    For details about the RS-232 interface, refer to the user's manual that came with the WT series instrument.


Turn on your PC and start Windows.
Extract the downloaded ZIP compressed file. A new folder, same as the file name (WTx000hrm), will be created on drive C and files will be extracted to it.
If so, installation is complete.

Creating Icons for the WT Free Software

After the program has been installed, you can use Explorer to create a shortcut to the program. Locate the executable file, right-click its icon, and select Create Shortcut from the shortcut menu.

Running the Software

Double-click the program executable file or its shortcut to run the software.




Please read Software Agreement carefully before downloading.


Release Date Apr 22, 2019
File Name wtx000hrm.zip 1.2 MB


Type Software


* Software Agreement
  • The property rights, proprietary rights, intellectual property rights, and all other rights associated with the software are held by Yokogawa Test & Measurement Corporation.
  • Under no circumstances is any dumping, reverse compiling, reverse assembly, reverse engineering, or any other kind of alteration or revision of this software allowed.
  • This software is offered free of charge, but no unlimited warranties are made against any defects whatsoever.
  • Also, Yokogawa may not be able to accept inquiries regarding repair of defects in or questions about this software.
  • The contents of this software are subject to change without prior notice as a result of continuing improvements to the software's performance and functions.
  • Yokogawa bears no liability for any problems that may occur during download or installation of this software.
  • Use of the Yokogawa Web site is at the user's own risk.
  • Any parties contributing to the creation or distribution of the contents on the Yokogawa Web site shall bear no responsibility whatsoever for any damages occurring as a result of the use of said contents.
  • Note that you must agree to the contents of “Software License” for the software that encloses or displays the “Software License” as the conditions of use.
  • This software product may contain open source software (hereafter referred to as OSS). License terms appropriate for each OSS component are applicable in place of the terms of this license. If there is a discrepancy between the terms of the OSS license and the terms of this license, the license terms of the corresponding OSS take precedence.

Downloading of the software indicates acceptance of the software agreement.

Related Products & Solutions

WT2010/WT2030 Digital Power Meters

The WT2000 digital powermeter series has been designed with emphasis on basic performance (bandwidth, accuracy, response speed, and noise immunity) from the viewpoint of measurement of electrical quantities. The broad range of functions of these power analyzers enable them to be used in various fields of applications.