WEBVTT

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Panorama of multimeters: manual, automatic 2 000, 6 000 and 20 000 points

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Entry level: 2,000 points: a display from -1999 to (+) 1 999

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The majority of the multimeters have 4 terminals, but sometimes only 3

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The terminal with low voltages and intensities are combined: DANGER!

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All multimeters offer a COM terminal! (common)

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Beware, the position of the COM is not standard!

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This black terminal is used in all measurements (common)!

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The COM must see the lowest potential, otherwise the display will be negative

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The second terminal allows to measure voltages V and resistance (symbol omega)

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One mA or 2 A maximum

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Attention to the common terminal here: risk of cct in case of error on the selector

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Avoid devices with common terminal and prefer, like green, those with shutters

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Finally the shunt terminal 10 or 20 amps

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Warning ! By measuring a voltage one is in parallel: the voltmeter is insulating

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The ammeter is it conductor because in series! Attention to cct in case of error!

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In the course: all the additional information!