Translations:Multimeters/30/en

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Clamp meters are auto-ranging and share all of the basic functions of a traditional handheld multimeter, but they enable current measurements above 10 A to a certain limit, typically around 300-400 A. The multimeter performs current measurements by measuring the current that is flowing in a wire based upon the electro-magnetic field that it generates. To take a measurement one simply passes one wire of a circuit through the jaws of the clamp, which can easily be opened and closed by a button the side. It is important to only pass one wire of a circuit through the clamp because if both wires are passed through the currents will cancel out.