How to use a multimeter? We perform simple measurements

The question of how to use a multimeter, surprisingly, is currently very relevant. For sure, every man is familiar with the situation when he went to the electrotechnical shop to get a replacement for the burnt out lamp, to get out from there after quite a long time. Racks with electrical equipment, meters and multimeters behind the glass cabinets, circuit breakers on the shelves, etc. - Is it possible to safely pass by all this "wealth" and not stop, do not read the specifications? Of course not! Even though the education of an electrician is far from everyone.

If most of the presented goods are interested, first of all, by the owner of a private house, then even a resident of a high-rise building can think about buying measuring instruments. It is very convenient to have at home the opportunity to check the presence of voltage in the sockets, call the incandescent lamp for integrity ... it is not enough! Moreover, no one specifically asks how to work with a multimeter, because the prices for these devices in recent years have significantly decreased. A budget digital model can be bought for less than $ 5, which is very tempting.

In how to use a digital multimeter, there is nothing complicated. The main thing is to remember a few rules:

• The multimeter allows you to measure current and voltage, the values of which are hundreds of times higher than the deadly ones. This should always be remembered, regardless of whether there is a "crust" of the fitter. The device should be used carefully, carefully and thoughtfully;
• If the numerical value of the measured parameter is even approximately unknown, then first set the maximum limit, and then, if necessary, reduce it;
• The internal battery should not be discharged - this determines the accuracy of the measurements.

The answer to the question of how to use a multimeter, you need to start with the basic capabilities that all multimeters have. They can measure constant and alternating voltage, current, and resistance. In addition, continuity of the circuit is possible, check of the transistor and determination of the temperature on the probes.

How to use a multimeter? Two probes are inserted into the sockets. One of them is indicated by COM (mass), in it the stylus remains always. The second socket is used to connect the probe to any other measurements, except the special mode (current 8-10 A). If you want to measure a large current, the second probe is switched to the large current socket. Near the body are all the symbols.

The rotary mode switch on one side has an arrow, it is set to the required unit of measurement. For example, if you want to measure the resistance of the resistor, then set the switch to maximum (QM) and touch the probes to the resistor terminals. If the display shows a digit with zero at the beginning, then switch to a smaller limit (up to hundreds) - so it's easier to read the value.

To measure the voltage, put the switch in the desired genus - ACV or DCV, select the maximum value and touch the conductor under voltage and earth. For example, to see the famous 220 volts in the socket, select the ACV 750 and insert the test leads into the socket.

To measure the current consumed by any portable device is also possible. For example, you need to know what current is consumed by the camera, which is powered by two batteries. We set the maximum limit for mA (200-300); We move one side of the battery away from the contact in the device; With one probe touching the battery pole, and the other touching the current collector spring (the one where the pole should touch). In the case of two batteries, the multimeter must connect its probes to the break, like a third battery. Keep the contacts and turn on the camera. Knowing the current consumption and battery capacity, you can easily calculate the operating time. Required for batteries.

In fact, the topic "How to use a multimeter" can not be fully disclosed in one article. But who wants to learn more, easily find all the answers on the Internet.