Αν έχετε αναρωτηθεί ποτέ πώς να χρησιμοποιήσετε ένα πολύμετρο και τι σημαίνουν αυτά τα σύμβολα στον επιλογέα, δείτε αυτό το επεισόδιο του Bits!
Βίντεο και σχόλια από το κανάλι I Like To Make Stuff
GinTonic.gr - Η ομορφότερη παρέα
GinTonic.gr - Η ομορφότερη παρέα
Αν έχετε αναρωτηθεί ποτέ πώς να χρησιμοποιήσετε ένα πολύμετρο και τι σημαίνουν αυτά τα σύμβολα στον επιλογέα, δείτε αυτό το επεισόδιο του Bits!
Βίντεο και σχόλια από το κανάλι I Like To Make Stuff
Just a note, if you want to test voltage or continuity, then measure across the component. If you want to measure current then you have to interrupt the circuit and place the meter in the middle of the flow of electricity.
If you do this incorrectly you might damage the circuit, the meter, or both. For example, if you use the meter in current mode across the resistor that current-limits an LED, then you're effectively bypassing the resistor with the meter, and the LED will receive the full current and possibly get fried.
Also, if you're trying to measure a component while it is in the circuit, the rest of the circuitry can interfere with the measurement and give you bad values (a resistor might not read the actual value, for instance). If you need to accurately know the value then either read the markings on the component or desolder it from the circuit and measure.
Great video, just wanted to throw a couple of extra tips out there!
The diode symbol is actually for measuring the forward voltage of a diode. On some meters its separated into the diode test function and the continuity function.
Where did you learn about electronics, I want to start working with them but I don’t know where to start!
One of the things I like to do before I take any readings is use the diode/continuity range to perform a 'lead check'. This makes sure the leads are connected properly and don't have any breaks in them 🙂
idea: CLAMPING//BITS
Hey Bob, I was wondering if you had any tips to get the smoke back in the meter.
Very handy tips thanks
Your videos are great. The only beef I have is the music. The background music is distracting, obscurative, and totally unnecessary, as your voiceovers are excellent; and the sudden bursts of loud music are just obnoxious, and unworthy of otherwise great videos.
I am a multimeter snap on technician. I am certified through the career center. I took an 8 week course there.
A good tip that can save your life as well as the life of your multimeter is when storing your multimeter always set it to the highest possible AC Voltage setting, because if you quickly grab it and forget to make the correct settings there is not much that can happen to you or your tool
I love my multimeter use it all the time.
please please please , make another one more complete , it heps me a lot , but in need another ,,thank you for make this …. and how can i measure a broken notebook charger , o find with how much voltage it works .
regards
👍👍👍👍 Good stuff in the comments too. kinda like measure twice cut once….. Especially when working with higher voltages.. You want to take your time… double check where your leads are plugged in, double check settings… and make sure nobody is around to bump or distract you. Always check meter on an energized power source for proper operation before relying on it. sorry … rambling…. day job
I can’t find anyone who has made a quidditch set from Harry Potter
Your T-shirt text is reversed =0
Can you Build A Smart Garden?
hey could you try to make an inexpensive pool table, to be honest I've always wanted one but there is no set tutorial for it on youtube,(figured you would like to be the first)
You should mention that when measuring resistance or continuity, the circuit must be de-energized. Multimeters use an internal reference voltage to test for resistance values, and can get very erroneous readings (i.e. negative resistance) if there is live external power in the DUT (device undergoing test). This can also prevent your continuity check from functioning properly and could result in false positives for continuity.
The more you know…
I haven't gotten into electronics much yet but I'm bookmarking this video because I know I will need it before too long! Great info!
Current = Amps for those who dont know.
if your measuring amps on a curcuit then your need to go inline (In-Series) with the side sending the voltage. when mensuing current dont touch the wires with your bear hands it can hurt you! (Depending on Load)
oi bob clagget
hows rush doing?
So is it pronounced multi-meter or mul-tim-itter? I've always said it the way Bob does. But I've heard it both ways.
ACDC-Thunderstruck
im sorry
OMG, I follow and love ur channel, and I literally got a multi meter today and was gonna look up a video on how to use it! Who knew??? Keep it up, Bob. X
If you have a diode like an LED then the continuity won't work so be careful and check around that.
I wouldnt use the diode che ker for continuity. Sure if you need to find to wires in a bunch you shouldn't go that route. Use the restitance setting for true continuity as you will have valid restitance to see if you have an open or short.
dont measure voltage with the meter set to Amps/current…… you will let the smoke out , then things will never work again..
Those symbols sure are confusing. Volts is just V, and DC is — ? and AC is ~ ?
Great video! In addition to what you said Farads are handy to be able to measure if you have a nice enough meter. If you are careful, you can diagnose and fix the most common aircronditioner issue bad capacitor. Caps are also on any large electric motor so vent fans boat lifts..
Bob, isn't wearing an ILTMS hoodie like being the guy wearing the band t-shirt to their concert? 😉 I love the podcast
If your meter does not have a setting for continuity, testing resistance will work, too. If there is continuity, it will read a certain number of ohms. If the circuit is open, it will not read.
I pretty much never try to interpret color bands on resistors anymore. Just grab the multimeter if it’s a loose part. Faster & more accurate (that is, the actual resistance vs nominal).
Thanks for sharing!
Do yourself a favor and buy a good quality autoranging multimeter. Fluke is the gold (well, yellow) standard, but there are other good brands; I have a pretty nice Extech bought for me by my father, who was a professional electrician for 30+ years before retiring due to poor health. If you'll be measuring AC voltages for anything other than wall current, such as testing uninterruptible power supplies (UPSs), get one that advertises true RMS.
Also, if you'll be doing much home DIY electric work, you might want to grab a clamp meter for measuring AC current (amperage). It can come in handy when troubleshooting, and better to have it when you need it. If you shop carefully, you can even find clamp meters that do autoranging voltage measurement for both AC and DC, though they usually have a few less "extra" features than a regular multimeter — still fine for most home gamers and even the tool belt unit for many electricians.
Bottom line, though, don't cheap out on your multimeter. Cheap ones are painful to use, even when you know what you're doing, and might get the inexperienced user in big trouble. They're unreliable and break quickly, too, so you're really not saving money.
BITS actually stands for
Being
Innovative
Takes (acquiring)
Skill
I got into the habit of saying mul-tim-e-ter vs multi-meter from Ben Heck. Good basic run down.
can you make a M38 ww2 tanker helmet? would really love that because they are like 500 bucks and i it would be so much cheaper to make one