Smart Component Tester - Assembly & Review (LCR-T4 M328)

Got one of those smart component testers: resistors, capacitors, transistors, MOSFETs, diodes, ... We assemble the case and test the tester.

WARNING: There is always a danger of shock, fire and electrocution when working with electricity. Capacitors of high voltage can kill if mishandled.

[charlesmoore]

Excellent video, thanks. I just got mine today and I realized that the rectangular hole in the back near the battery is for mounting the battery on the OUTSIDE of the case. The little holes are for zip-ties to hold it in place. Also, the little hole in the side is for mounting a power switch. Could help extend the life of the battery.

[OFGODSOWN]

I am happy mine was fully assembled when I got it other than the clear Lexan case which I purchased after the meter was given to me at Christmas by a friend.

[daysleeper]

Thanks so much for taking the time to show this.... Much appreciated!.

[jutukka]

Yes, the weak point of this kind of meter is inductance measuring. I tried to measure inductance of a fully functional 10 H choke (which was not connected to any circuit). No result at all.
And when I tried to measure a excellent condition Celestion Vintage 30 speaker, the result was that it is a very small capasitor. Resistance or inductance was not measurable at all. Of course the loudspeaker coil is very sensitive and can move and react to the test signal (which can be heard very clearly during the measurement) and kick back.

And yes, battery change is not very easy.
And yes, the display cable is too close to the upper part of the casing.

Nice video.👍

[kingshahzad]

This ribbon of lcd can be folded inward slightly

[frederickgaylon]

Square Hole is for exteded Test Probe or alligator clip. Actually the test probe is not included in the package.

[bigbasil]

I bought one of these from China with the battery holder, which was for some reason cheaper than the one with the battery lead. I would have thought a holder would cost more than a lead but in this case, not. I also have the 3 small leads that you can plug into the 3 testing points, so you can clip them on to components so you don't have to plug the components directly into the testing points (which will work out good for capacitors etc that have had their pins cut too short to reach the testing points). I got to figure out how to use the thing now lol

[jagboy]

I have one of these and so does a friend. Any idea when I test a transistor on each them, one says NPN and the other shows the same transistor is a PNP What am I missing here? It's a TIP126 bipolar transistor. Thank you! Great channel btw, I'm learning a ton!

[azzuro]

thanks man, you've just saved me a ton of nervs

[matthewjohnston]

I found a spare 500ma 9V power supply which I use instead of a battery and made small groove in the end of the case for the wires.

[ralphups]

i did see, a review of this type product.
on eevblog and shango066 youtube channels, but i wen't and got one the other day to put it together take a good look at its picture on the web site you go it, also i put some glue around the nuts after the screws were in the outside case, but then the batteries could be replaced with a 2.1mm dc socket with break contact were that square hole is on the side. plus the unit dont come with a holder to put your 9 volt batterie in anyway.?

[phaenius]

How did you peeled the brown paper from acrylic?

[ionmarius]

5-7% error on inductance meassurings, tried with 15 pieces of known values

[pennylane]

Thanks a lot, Mister. I send a link from your assembly vid to Aliexpress. I think it gets a lot of traffic. :-)

[LOTPOR]

Leave the front on and cut a hole in the back case so you can replace battery easier

[eduardboray]

Die ältere Version ( 2.07 ) erkennt mehr Bauteile.