Updates for Doble’s LCM500 and LCMViewer software for in-service testing of metal oxide surge arresters (MOSAs).


All LCM files are password protected and are available to current registered users. To obtain a password, contact your Doble engineer or send an e-mail to Please state your name and company in the text.


LCM500 Firmware
File Size 106Kb – 2013/5/18 LCM500 Firmware Version 1.23


LCM500 User Guide
File Size 2 MB – 2018/02/20 LCM500 User Guide – English
File Size 2 MB – 2014/10/17 LCM500 User Guide – Portuguese


LCMViewer Software
Prior to installation, please read the Release Note for feature information and installation instructions. You must have administrator privileges to install LCMViewer.

File Size 25.0 MB – 2015/12/31 LCMViewer Software 2.0.0
File Size 66 KB – 2015/12/31 LCMViewer 2.0.0 Release Note
File Size 1.59 Mb – 2015/12/31 LCMViewer 2.0.0 User Guide


Doble Engineering Company

Doble Engineering Company