MODULE 1 - Introduction to DMM and Its Components
Section outline
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Students mustView
A Digital Multimeter (DMM) is an electronic measuring instrument used to measure electrical values such as voltage (V), current (A), and resistance (Ω).
It combines the functions of a voltmeter, ammeter, and ohmmeter into a single device, with a digital display that shows the measured values in numbers for easy reading.
DMMs are widely used in electronics, electrical work, and troubleshooting because they are:
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Accurate
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Portable
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Easy to use
Most modern DMMs also include additional features such as continuity testing, diode testing, frequency, and capacitance measurement.
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Students mustView
Parts of a Digital Multimeter and Their Functions
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Display Screen
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Dial/Rotary Switch
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Function Buttons
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Input Terminals (Probes Ports)
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Test Probes
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Battery Compartment
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Fuse
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