Dynamp

Electro-Process and High Power Conversion 

Measurement, Control & Protection

Providing the most accurate and reliable electrical measurement and analysis systems available since 1961.



With over 6,000 systems installed around the world we are the global leader in high power conversion and process monitoring.
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1961Haley and Martin found Halmar Electronics

1963Halmar introduces DynAmp line of high current measurement products

1985LEM, a manufacturer of small DC current sensors, introduces systems >10kA

1989Robicon acquires Halmar

LEM DynAmp1992LEM establishes LEM DynAmp acquiring the “DynAmp” product line from Halmar-Robicon

1995LEM reorganizes creating the High Current Systems (HCS) Business unit

1997LEM DynAmp introduces LKP utilizing the best technology from LEM and Halmar

2000LEM DynAmp develops OLOP technology and introduces LKAT for rectifier control and protection.

2003LEM supports a management buy-out of its High Current Systems business. DynAmp, LLC is reorganized as a privately owned, independent business.

2005DynAmp introduces LKCO for measurement of high current using fiber optic sensor technology.



DynAmp, LLC
3735 Gantz Road
Grove City, OH, 43123, USA
Phone: (+1) 614-871-6900
Fax: (+1) 614-871-6910


DynAmp Europe
Chemin des Aulx 8,
1228 Plan-les-Ouates, Geneva, Switzerland
Phone: (+41) 22 706 1446
Fax: (+41) 22 706 1311

Copyright © 2006 DynAmp, LLC
All Rights Reserved
help@dynamp.com
( formerly Halmar and LEM DynAmp )
To visit LEM Group, click here
Updated: 1 April 2006