Multimeter

A multimeter (also called universal controller ) is an electric whole of measuring devices S contained in only one case, generally consisted of a Voltmètre, a Ampèremètre and a Ohmmètre.

The choice of the type of measurement (of the instrument), of the gauges or scale of measurement is generally done using a rotary switch, pushbuttons can order additional functions.

  • the most recent multimeters, often easiest to use, automatically choose the good mode and the good gauge.
  • the oldest models of multimeters use a bill-poster with Aiguille controlled by a milliammeter with mobile framework.
  • From now on, the digital display with Liquid crystals is of rigor.
  • Parfois, posting is summarized with some leds which provides a brief indication, but sufficient for the Opérateur.

Other functions of measurement available according to the degree of sophistication of the multimeter:

  • Test of continuity with or without sound-effects man;
  • Amplification to measure the very low tensions and the high resistances;
  • Measurement of the capacity of a condensing ;
  • Measurement temperature, with the assistance of a external Probe;
  • Tests of discrete semiconductor: Diode S, Transistor S;
  • Measurement of Frequency of electrical signals;
  • Measurement of the peaks (high and low) of tension;
  • Checking of the absence of tension (VAT).

External bonds

  • Multimeters

Simple: Multimeter

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