WT1800E High Performance Power Analyzer


This firmware is intended to upgrade the WT1800E to the latest version.


Please read installation procedures throughout before performing the installation.
Each zip file contains firmware program file and an installation procedure.

Revision History

Version Release Date Content
3.21 Dec 21,2018
  • Support a power cords corresponding to Taiwan requirement.
  • Fixed the problem that measurement data is incorrect when the HS filter is set to ON.
  • Fixed the problem that communication fails due to a timeout error at the initialization when USB interface is in use through VISA.
3.11 Oct 13,2017
  • Added support for PD2 option.
3.02 Nov 9,2016
  • Fixed the problem that the WT1800E sometimes hung after operating for one and a half months continuously.
3.01 Sep 26,2016
  • New release



Please read Software Agreement carefully before downloading.


Version 3.21
Release Date Dec 21,2018
File Name wt1800e_321.zip 28.0 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 Electric 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.

Downloading of the software indicates acceptance of the software agreement.

Related Products & Solutions

WT1800E - High-Performance

  • Power, Harmonics (THD) Measurements (up to 500th order)
  • Electrical & Mechanical Efficiency of Inverters and Motors in EV and HEV