Digital Power Meter WT300


This firmware is intended to upgrade the WT300 to the latest version.


Please read installation manual (IM B8212ZY EN) throughout before performing the installation.
Each zip file contains firmware program file and an installation manual.

Revision History

Version Release Date Content
1.06 Nov 1,2016
  • Fixed the problem that when the over current protection function went into action during auto range integration on the WT310, sometimes a measurement value after that was not updated.
1.04 Sep 29,2014
  • Added the extended function of D/A output.
  • Added the resume function of the integration when returning from power failure.
  • Fixed USB-PC communication interface issue.
1.03 Jun 11,2013
  • Improvement of the zero-level compensation operation in WT310.



Please read Software Agreement carefully before downloading.


Version 1.06
Release Date Nov 1, 2016
File Name 3.1 MB


Type Firmware* Registration is required to download.


* 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

Digital Power Meter WT300

The WT300 offers high performance and high reliability in a compact package with excellent price value, making it ideal for multiple applications from R&D to manufacturing test. It is the fifth generation of Yokogawa's value series power meter, and the world's best selling power meter.