| This clamp meter allows properties of the electrical current in the conductor to be measured, without having to make physical contact with it, or to disconnect it for insertion through the probe. Current clamps are usually used to read the magnitude of a sinusoidal current (as invariably used in alternating current (AC) power distribution systems), but in conjunction with more Advanced Instrumentation the phase and waveform are available. Very high alternating currents (1000A and more) are easily read with an appropriate meter, direct currents, and very low AC currents (milliamps) are more difficult to measure. |
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