The multimeter is a universal device that makes it possible to measure such basic indicators associated with electricity as the current, resistance, the size of constant and alternating voltage. Some models determine the container, voltage frequency, inductance. Digital testers are used to be popular. They are mobile and easy to handle.
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All measurements are carried out using a pair of special probe. Indications are displayed on a digital scoreboard or common with a scale by oscillation arrow.
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Connect the probe to the appropriate sockets. They are easy to distinguish with inscriptions or color. As a rule, black is minus, denotes the margin of Som, and red - plus. If the estimated current is more than 200 mA, then the probe is stuck in the connector under which the boundary value is indicated, for example, 10a or 10 ADC.
3
To enable a multimeter, turn the knob of the regulator from the OFF or OFF position to the sector you need.
4
To find out the resistance, set the switch to the area indicated by the Ω symbol. From the proposed interval from 200 Ohm up to 2 MΩ, choose the most likely. Figure 1 on the scoreboard indicates that you need to switch to the higher range. If the same picture is observed in all positions, it means that the chain opening face.
5
The site marked by the letters ACV or V ~ allows you to define an alternating voltage that is used in the usual household power grid. Install one of the positions - 200V or 750V - and measure the measurement.
6
A constant voltage is diagnosed to control the operation of some devices, schemes and nodes. Put the regulator to DCV or V.
7
Most tester models are equipped with a DCA DCA measurement function, the values \u200b\u200bof which fluctuate in the 200 μA-200 MA range. ACA mode, that is, the definition of alternating current is used less frequently.
8
Also using a multimeter you can make a call. To do this, disconnect the device or the circuit from the power supply. Provisions Explore a low-resistance chain. If the audio signal did not follow, then in this place there is a conductor or connections.
9
The device functions from the ninety-tide battery. The flashing image on the display flashes that it is time to replace it.
When operating a multimeter, adhere to safety equipment. Work is advisable in the presence of another person. Properties should be well breathed. Start all measurements from the top limit so that the tester is not burned.
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