How To Use a Digital Multi meter For Beginners
Hello friends In this video we’ll see how we can do some basic electronic components with this low cost multi meter. You have to pay on it to complete orders or paid only 200 rupees to purchase these multi meter, which is really cheap, but you can do lot of things with this multi meter which you will see during the video. And we will also discuss as a beginner you should buy these low cost meter or should go for this $20 multi meter. And I will also share some tips to measure electronics components accurately with this low cost multi meter. So I highly recommend you to watch complete video to get complete idea how to test this component accurately with this low cost multi meter. So let’s get started. Before testing his electronics component with his multi meter. Let’s understand some basic features of this multi meter. We can measure voltage both DC and AC voltage, we can measure the current DC current. We can test on either raised up to 2000 kilo, or we can test diode and continuity. And we can also measure transistor gain. With this multi meter. It can also generate a square pulse.
As you can see, now here you can see there are three socket. This is a common socket so we have to put a flat plate in the socket. And the socket is for testing voltage. Nice dense, and small amount of current in the ampere range. So if I want to measure the current in milliampere range, then I can put the red wire in the socket, but to measure the current in ampere range up to 10 ampere. I have to put this red lead to this 10 ampere, Max socket. So to measure current in ampere range. I have to put a red lead here, but to measure the current in me ampere range and voltage and to pull this red lead in the socket. First we’ll measure voltage across these nine volt battery, you can see this is a positive terminal of the battery, and this is a negative terminal of the battery. So to measure the voltage across these battery packs time to turn on the multi meter and slip the voltage range. This is not a proper range multi meter so you have to select the range before the measurement on the auto sleep multi meter, you can directly. Select a DC voltage, and you can measure the voltage, but for this multi meter. You have to select a range before them is a main as I am going to measure the nine volt batteries so I have selected the range, 20. Now, I have to connect directly with the positive terminal of the battery. And that leads into negative terminal of the battery. And you can see it’s showing 9.3 volts. So it’s showing the accurate reading.
No after testing the DC voltage. Now we’ll test the AC voltage for that and selecting this AC voltage, and I’ve selected 750 voltage range. So in the screen you can see it’s showing high voltage. Now, I will tell the AC voltage just by connecting these two terminals across mains supply. And it’s showing the reading to 42, which is also accurate, you can see that we can make the AC voltageor measuring the voltage, under 200 light. One thing you have to select this range in a multi meter. As in my country the supply voltage is 240 volts. So, slipped at this 750 range. Now we’ll measure these two days. This is a one ohm resistor. And this is a one meter ohm resistor. So we’ll see how to be measured these two raised accurately, it is digital multi meter. First, to measure to register. You have to connect a range lead with voltage an oval. So I’m connecting the red lead with a voltage and overbought. As you can see, Then you have to select a scale. So, you can see, I’ve slept at 200 all arrange in this old scale. And this is an auto auto select multi meter here to select a range before measurement. But for auto sleep multi meter you can directly select the old scale. So first app selected wanted old scale. And I will measure this one over Easter. No as a raised in value of this raised is very low. So to measure raised in value accurately we have to keep some point in mind.
So as I’ve selected a 200 scaling the multi meter. So, before measuring this raised fast to measure leader he stands by connecting these two leads in this manner. And you can see in the multi meter. It’s showing me, point, five or so. Take me right down the lead resistance. I’m getting the least resistance point five. Now, we’ll measure this way since. You can see I’ve spoken in the race tense across this too late. And after some time, showing 1.5. As you can see in the multi meter. So, I’m getting the reading 1.5, or no after getting these two balou to substract this really instance from this reading. So if I sub strat point five from 1.5. I will get exact one, which is the nominal value for this raised. So here you can see I am getting very accurate, very stingy with this multi meter. Now we’ll measure this one mega ohm resistor which is very high very low resistance. And we’ll measure this waster accurately with this multi meter. for that. To select a higher range but not change the range to show you what will happen if I select row range while measuring high value of resistance. So, let me connect this raised across the need. And you can see, showing one in the reading, which indicate it string or limits so I have to select a range. Now I have selected that 200 kilo ohm range, till, I’ll get over the limit as the range would be milone, then C still is showing one so now I am selecting 2000 kilo ohm range which is to me long range. Now I can measure this one. In the old days. So whenever you see one. You have to increase the range.
Now to measure these high value of res 10s accurately. We have to hold the res 10s in this manner. You can see, I’m holding the race tense with one hand. And I’m connecting the lead on the other terminal raised since. In this manner while measuring it, and you can see in the reading I am getting thousand kilo, which is a very accurate and which is equal to one mega selected 200 kilo ohm range. So that is showing a long range. But if I hold this way since we both hand and measure it, you can see, I’m not getting the accurate reading, as I’m connecting my body in parallel interest. So, to measure the high value resistance, you should always hold the resistance with one hand and connect a lead on the other and in this manner. Does we’ll get the accurate reading while maintaining the high value of resistance.
Now we’ll test that diode and led with his multi meter. For that to slip diode symbol and see, this is a diode symbol. And for this diode, you can see this is a band. So this is the cathode. And this is the anode. Looking at this band we can easily identify which one is anode and which one is that you have to connect a red lead with the anode of the diode, and black lead with the cathode of the diode. And after that, in the multi meter much favors the terminal, connecting the multi meter would only get like.