In 1950, ZERA developed the first electromechanical indicator, followed by an electrical meter tester with an accuracy of 0.1%. In the late 1990s, ZERA ...
As a primary standard, the COM5003 is designed for testing current and voltage meters as well as single- or three-phase power and energy meter testing systems.
Three Phase Electric Meter Test Equipment Distributor in France, Find Details about Zera Mt3000, Electric Meter Test Equipment from Three Phase Electric ...