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Engineering Dictionary

Clamp Meters

A clamp meter is an electrical measurement device designed to allow for the safe measurement of electrical current around a conductor. A spring level is used to open a set of jaws, allowing the jaws to be placed around the conductor of interest. The current through the conductor creates a magnetic field which can be measured by the winding in the jaws of the clamp meter. The current is then read on a meter in the handle of the device.