How to Use a Multimeter 

You're welcome!

I watched this video for the same reason to diagnose my dryer. Thank you for a great tutorial!

Me too! Thank you thank you!!! This is what the Internet is for!!!

When do we elect a science president?!?!

I'm going to attempt problem solving my washer! Wish me luck!

Thanks! If you found this video helpful then you might also find our breadboard tutorial video useful: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6WReFkfrUIk.html

Thanks! If you are going to buy a breadboard, you may find out breadboard tutorial video helpful: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6WReFkfrUIk.html

I agree. I have that exact multimeter, except the brand is CEN-TECH instead of the DT830L. It doesn't beep, but gives the number on the continuity test.

@@LittleMopeHead Yep, got three of them. 2 were free, first one think I paid $2-3. Worth that.

Solid approach. Thorough, concise and clear, and professional. You instruct like the Green Berets. That's saying a lot if you know how they roll up poorly equipped and untrained foreign nationals and turn them into skilled tactical combatants in relatively little time...amongst other battlefield roles.

Glad we could help!

Glad we could help! If you found this video useful you may also enjoy the breadboard video on our channel.

We're glad you found the video helpful!

Thank you mate I learn slot from your video..

Yes

Absolutely, I have at least 12 of them cuz they were on sale for crazy cheap. I wish the batteries were replaceable cuz I've left them on before

​​@@birdsaredinosaurs5472They are replaceable. There are 2: #1 phillips head screws in the back to access the battery.

@slshanklin thank you brother. Unless they are harbor freight batteries on sale it's almost or is cheaper to buy a new one.. well when the multimeter are on sale at least

​@@birdsaredinosaurs5472flip it over, take out the 2 screws on tha back. Take the cover off and replace the 9volt battery. Thank me later

Are you giving caie physics p3 exam too?? 😭

Hey I have a interview for associate tech engineer coming up what kind of jobs do you do?

Spoken like a real left-brain type 😙 🍿

And remember he’s an aerospace engineer. Lol.

@@richiejohnson is that not most common?

@@jasonvaughan2886 I was a little amused by the dual left brain functions. The engineering mind (which I do not have) places equal value on purity--- data and hygiene. The left brain is compulsion driven. The right brain has no discipline.

I guess my beeper went bad? Maybe I'm missing something? Maybe mine, though it looks like the same one, Doesn't Have a beeper?

Hi - one way to avoid frying the meter is to put a large resistor in series with one of the leads. For example if you put a 1 kilo-ohm resistor in series with the load that is powered by a 9V battery, then at most even if the load is short circuited you would get i = V / R = 9V / 1kOhm = 0.009A or 9mA. The drill press won't run with current that low but it would allow you to test wires if your meter does not have a continuity check feature.

his is my new restoration video 👉👉👉👉ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-upxG9Y6In6o.html👈👈👈👈

Hi - unless you have more experience with electronics, we don't recommend tinkering with devices while they are plugged into a wall outlet, as they can have dangerously high voltages present inside. Unfortunately it's hard for us to help with debugging a specific piece of equipment in RU-vid comments, but there are other places online like Reddit or Stackexchange where you might be able to post pictures of the circuit and get help.

Hi - we're a K-12 STEM education nonprofit so our tutorials are intended for kids using multimeters for science projects. We can't really provide advice on car repair - you might be better off asking this question on an automotive channel or forum. Good luck!

Hi - we hadn't tested that specific setting and didn't include it in the video since not all multimeters have it. But, after testing it myself, I believe the value in parenthesis is the amount of current the multimeter will attempt to draw from the battery. So for example if you got 25mA from a 9V battery, the battery is still fairly "fresh." If you only got 21mA then the battery is not as new. The difference is that in the battery test mode, the multimeter is using some internal resistance to limit the amount of current drawn from the battery. When you set the multimeter to measure current, the internal resistance is (almost) zero, so you are effectively short-circuiting the battery and letting a very large amount of current flow. That can cause overheating and is not a realistic test condition, so the battery test function lets you test the battery with a more realistic load. I don't think I have any original paper manuals for my model DT830L, and after a quick search I can't find one online - this manual: www.all-sun.com/manual/Dt830_en.pdf is for the 830 series but doesn't list the 830L in the table of models. Section 9 on the battery test function says the display will show the battery's voltage, but it doesn't look like that's the case for this model (impossible for a 9V battery to be 25V, so it looks like it's showing the current). Hope that all makes sense.

@@Science.Buddies Thank you, Ben

For beginners we recommend sticking with battery-powered circuits and avoiding the high voltage from a wall outlet. That can be much more dangerous, so we did not cover it in this video since our videos are primarily aimed at K-12 students.