LCR-ST1 SMD ESR Resistance Capacitance Inductance Continuity Diode Smart Tweezer Test & Review

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Fnirsi sent me one of their LCR-ST1 Smart Tweezer Testers. I have to say this really surprised me. Wanna know why, you just gotta press PLAY
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Опубликовано:

29 сен 2024

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Комментарии : 35

@pault6533 20 часов назад

0.3V is to be used for in-circuit measurements to avoid turning on adjacent P-N junctions. They mean to say not “powered on” when they say not for online measurements. Diodes do not get enough voltage to be past the knee of the diode’s VI curve, so that is why the voltage is for reference only. There is no DC voltage on this device. Everything is measured using a AC signal without any DC bias. This is why diodes are identified for direction and also why polarized caps may carry some measurement error.

@grahameaves3298 21 час назад

I have one of these and I like it a lot - re the diode test mode, from firmware 1.5 the diode symbol on the display rotates to shows you the "direction/polarity" of the diode junction across the tweezer legs but still doesn't allow you test the diode in the reverse direction. Very good addition to a "portable" toolkit

@LearnElectronicsRepair 16 часов назад

I kinda assumed if FNIRSI sene me a review sample they are gonna send me one with the latest firmware, because obviously I'm gonna take the thing out of the box and try it on video 🤪

@phillipchen7749 20 часов назад

I think you could have also tested component out of circuit to 1 give better comparison of accuracy, we know measuring in circuit for individual component is not very accurate

@LearnElectronicsRepair 16 часов назад

I tested it in the way I know most viewers would be interested to see how it functions. However there is the live stream Sunday 6th October and we can take another look at this. Come and join us if you are free

@Mark_C1 19 часов назад

Thanks for the Ali link 😀 worked a treat! I have their iron and the 1014d scope, too, so this will be interesting to try out ! £26.87 to the uk including delivery. Happy days

@lonndawg7554 15 часов назад

I would like to Thank, FNIRSI for sending you this interesting device for review, I have been interested in this Device and how it works, and what it can do in component testing... This general demonstration of the product was very useful, we got to understand its operation and testing capabilities and a good discussion about its usability, I think as we continue to use it on the channel we will learn more about its ability to reveal whether a component is faulty or good. This is why look forward to the opportunities that will be apparent in your future videos. What I see with this product has shown me that it's worth purchasing... And that will be happening soon, we will learn more about the characteristics of this product and gain greater understanding of how to use it. As with all test equipment learning the devices testing capabilities will become more apparent as we use it.

@mainecoonman 20 часов назад

I have one, different brand but essentially the same thing. It is handy for checking smd components in circuit for shorts and open circuit. Not a replacement for a good multimeter but useful in certain situations.

@OnStageLighting 14 часов назад

Just had mine delivered yesterday! Not really tried it properly yet. Have been looking for a one-handed on-board SMD tester for a while and this seemed to be the most current one. Guess will see how much I use it compared to the DMM and others...

@darylmcgee4349 13 часов назад

This video came at the perfect time. I was looking at buying one the day before watching but was,'t sure. Now You have done the work for me and I will buy one.

@JustInspiredKent 14 часов назад

I found mine very useful a couple days ago when I was struggling to hold two test leads on a micro switch while pressing the switch button with my other hand. So basically a tweezer continuity tester. :)

@danblankenship5744 16 часов назад

It would be better if they offered a DC setting for resistance. I suspect the leads are not polarized since the test leads use an AC signal (why Diode Mode acted that way). It would be nice to compare components (out of circuit) to see how it sizes up with more expensive test equipment.

@kelvinwilson4412 16 часов назад

Just ordered from Banggood , £18.96 including VAT plus a couple of quid postage.

@LarixusSnydes 8 часов назад

To be honest, I'd rather have a tweezer probe for a regular LCR meter than yet another device with a separate battery.

@Dutch-linux 15 часов назад

looks like they updated the firmware yours is way more accurate then what the other reviewers had.. especially eith the ESR .. it would always show the same value no matter what capacitor they tried

@jonnyduncan7056 19 часов назад

Did you zero the prongs together initially, as it wasn't obvious that you did, on camera?

@sivoltage 13 часов назад

A teardown of this would be interesting. Thanks Richard.

@chrishartley1210 20 часов назад

I think "online measurements" means the tested device being powered on.

@Dutch-linux 16 часов назад

also I have seen other reviews of that tester and it is not very accurate !!

@fredwooding599 17 часов назад

Nice tool, but I doubt I would use it very much.

@Dutch_off_grid_homesteading 18 часов назад

Heya, for the price I guess it's a nice tool. pretty fast with it's readings. only the diode testing ??? wel I guess that wen a diode is shorted it will tel you "zero"? or wen it's open circuit.

@LearnElectronicsRepair 16 часов назад

Yeah that is true - how else can as Diode fail really?

@danieljohnson8437 20 часов назад

Excellent Thank you.

@Dutch-linux 15 часов назад

I give it a 6 out of 10

@pauldery7875 20 часов назад

Richard, they seem a bit quirky to use, I don't think I would spend 40 dollars on them. The tips look to be very bendy as you were using them, as opposed to multimeter probes. Paul, USA!

@andrew_koala2974 19 часов назад

Thousands of curious fans of gadgets will find $40 to throw away on an instrument that will spend most of its time in the drawer when the novelty of it wears off - after a few months or a year - it will end up in the trash. Better use the $40 to buy some SILVER to offset inflation

@LearnElectronicsRepair 16 часов назад

There is a special offer link in the video description...

@GregM 16 часов назад

I wonder how this compares to the Zotac Zoyi tweezers or the Shannon tweezers?

@LearnElectronicsRepair 16 часов назад

Well come to mention it, after last weeks livestream I was approached by one of those companies....

@vladimirisakov3715 14 часов назад

Richard, I recommend watching it. Miron63 - лучший помощник в ремонте! Смотрим видео - Miron63(M63-v3.4h) vs Fnirsi (LCR-ST1). Сравнение внутрисхемных измерений Miron63 и FNIRSI LCR-ST1

@LearnElectronicsRepair 13 часов назад

Seeing as no one sent me a Miron63 as a comparison then how can I make a comparison?

@andrew_koala2974 19 часов назад

The problem with having too many similar test instruments presents itself as a result of a human factor - and that is curiosity and doubt. The combination of the two then results in an inefficient time wasting environment. How is it so ? You may well ask. One starts comparing the test results across the other test instruments because of the curiosity factor.. Each instrument will have a slightly different reading - usually the discrepancy is minimal - but where the reading is significant - doubt begins to surface. either way - the time taken to take the measurements is wasted on comparison of results rather than that time being used used efficiently in the repair process. So it is better to stick with the trusted instruments one already has - trusts and is familiar with. Like having too many knives in the kitchen drawer - you will not know which one of them is the best one to use. Sure - FNIRSI wish to sell as many as possible - that is more money being siphoned off to CHINA where they will invest it in Gold - Silver and overseas Real estate to rent --- That is why your Real Estate values keep rising. The Chinese economic python is slowly strangling you.

@LearnElectronicsRepair 16 часов назад

Yeah it's a real hassle that manufacturers send me free stuff to review. But i'm not racist about it, UK, USA and any other companies based in any other location are quite free to send me their stuff too and I will review it in the same fair manner. Strange though, for the main part they don't appear to interested in promoting their products. That's not my fault, and as I mentioned I'm not racist about whoever wants to send me stuff, if it is electronics test/repair related I'll look at it. I have no prejudice against the Chinese. I've even been there, it was an interesting place.

@Dutch-linux 16 часов назад

Richard that is not what I meant with hot tweezers... hot tweezers are basicalle a soldering iron in the form of a tweezer so you can desolder componets in tight places or in the other cases you do not need to soldering irons... that is just a tester.. so when you said in the live stream you got something like that coming that is not even close to what I was talking about.... you always say use the right tool for the job... well then use the right tool for the job and get your self a pair of hot tweezers !!!!!!!