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2026. 6. 30. 작업

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Multimeter - Basic Functionality and Howto

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Basic Functionality Image In order to illustrate a typical Multimeter The Multimeter is specifically a multifunction tool. By definition it combines several, well defined instruments and multiplexes the controls for simplicity. Inputs Majority of Multimeters will have 3 input terminals. Typically you will only use COM and V/mA/Ohm input (often Black and Red respectively, but not in the sample image). The third input is used for measuring particularly large currents. Some multimeters have 4 inputs for more precise measurements using Kelvin Sensing . In handheld devices this is typically seen on LCR Meters . Voltmeter Mode In Voltmeter mode you must always perform measurements in parallel with the circuit being measured, the circuit is powered The basic functionality of the voltmeter is to measure voltages, potential differences across two points in the circuit. Virtualy all DMM's will have voltmeter functionality. On the representative device shown in the image, the voltmeter modes are