The Concentricity Alignment Tool (CAT) is used to concentrically align turbine diaphragms to the shaft of the turbine. It is also known as Electronic Radial Alignment Gage or ERAG. There are now three measuring heads available that cover the range of most turbines including some of the smaller marine turbines. The CAT is manufactured by EDS Measurement Systems, Inc. in Rochester, New York, USA.

Note that all CAT/ERAG repairs and calibrations are done in Rochester, NY by EDS Measurement Systems. Do not send TATKs or PWLs to Rochester. Contact us for information on where to send TATKs and PWLs.

More information is available on EDS Measurement Systems’ CAT page.