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Clamp Meter

Clamp Meter, In electrical and electronic engineering, a current clamp or current probe is an electrical device having two jaws which open to allow clamping around an electrical conductor. This allows properties of the electric current in the conductor to be measured, without having to make physical contact with it, or to disconnect it for insertion through the probe.  A digital clamp meter is a device that measures current in amperes (A) by magnetic induction. This type of measurement is non-intrusive and very convenient. The digital clamp meter is squeezed open, and the cable whose current needs measurement is enclosed in the clamp meter loop. The clamp meter is removed after the current reading is made, and all this can be done without having to interrupt the continuity of the cable under test. In old methods an ammeter has to be inserted, which meant disrupting the current to do the measurement.

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