LCR-T4 electronics components tester ATMega328 - Test and Review

CMS wrote:

but I will say that when I saw the display dangling loosely on the tape ...

Did he drop out when unpacking? I hoped that my day would arrive and I miscalculated and ordered on July 3 in the morning

CMS wrote:

I also had a problem with the package, fortunately everything works, but let me say that when I saw a display dangling loosely on the tape, I was a bit sad, but after connecting the power the smile returned.

Unfortunately, that's how it looks everywhere, even if you pay PLN 100, so you have to quickly secure it to serve many years. They were not removed from the original packaging. Probably the next versions will be already with the housing for self-assembly, but unfortunately they may be worth a bit more points. For now, all the information I receive from the battlefield is all undamaged.

For me, the display popped out of the "backlight frame" and flew loosely in this anti-static film package, fortunately enough to knock it in place and work fine. However, stress was . I did not have time to test, I just checked if it actually measures the inductance of the coils. Measures, so it's great, as I check the other functions, I will appeal to you on this topic, although I think it will be better at https://www.elektroda.pl/rtvforum/topic1635313-630.html#16567613 I put something in, the rest of the package. Stickers great, it's a pity that only two, because now I have a dilemma where to put them and there are many places. A pen that is not practical as a pen and not practical at all as a vernier caliper, but BETTER Although it is terribly trashy, it will join my "pencil case" because it makes the atmosphere . Greetings. CMS

CMS wrote:

A pen that is not practical as a pen and not practical at all as a vernier caliper, but BETTER Although it is terribly trashy, it will join my "pencil case" because it makes the atmosphere .

I also laughed at it, but what's interesting is that it writes well, very light and fast, and it also measures well, so I took the art, forgive me Always something different than an ordinary pen.

gulson wrote:

I also laughed at it, but what's interesting is good

I have not tried yet, somehow I prefer "round", moreover, they lie better in my pocket. The measuring tape has an accuracy of max. 0.5mm (and with good winds), so it's gone, but the gadget itself is really cool. And with the logo of El ... And these are just good gadgets to promote Electrodes in OpenCaching. Such "mushy pens" or convex stickers. These are things that are ideal for placing in caches, as "things to exchange". Admittedly, the project discussed two years ago somehow quietened (not to say he died completely), but I am still actively playing (which can be seen in my description, and I could throw such gadgets into the found cache.) Kamil, how do you have stickers and writers, then you can send, and I will make use of them. I purposely write, in an open topic, because maybe someone will catch "caching"

gulson wrote:

I decided that the foil, bubble foil plus additional foam protection would be sufficient against the deteriorating activity of Poczta Polska.

Once, when I sent PP delicate shipments I reported that it is not advisable to pound the date after shipment. The employee then took a square, clean sticker and reflected the stamp on it. Then she stuck it on the parcel. But that was some time ago. Or there was just nice service on my post.

gulson wrote:

Other shipping methods (> PLN 10) are unfortunately not profitable with free gadgets, and payment for the shipment can not be accepted from users.

And how to send cash on delivery? Of course, with the consent of the user. Then you would not charge the payment. Those 10 PLN or even 15 PLN I am able to get over. And probably not just me. Some gadgets do not get in the newsstand around the corner. Especially with the Electrode logo. Besides, PP also has to be paid. Maybe the user would cover the difference ?. Then it would not be 10 zlotys or 15 zlotys anymore and for example a surcharge of 5.5 zlotys?

The tester arrived in full (although also in my display the "got out" from its mounting), passed the calibration and the first tests. Below I present the results of measurements using the M328 tester. These results, being the averaged value of three measurements, I compared with the data obtained during the measurements using the following multimeters: - UNIT UT-10A (from the Forum shop from February 2014), - DT-9208A (version from the Forum shop from April 2013), - DT-9208A (version from the Forum shop from February 2016). The devices were powered using new 6F22 (DT9208A, M328) or CR2032 (UT-10A) batteries. When measuring using DT9208A, I used one pair of test leads for both multimeters. All measured elements come from the outflow.

Element	Nominal value or designation	UT-10A	DT-9208A (IV 2013)	DT-9208A (II 2016)	M328 tester	Comments
resistor	1.5? 10W 10%	1.6?	1.8?	1.8?	1.53?
resistor	39? 2W 5%	39.2?	39.5?	39.4?	39.6?
resistor	6.8k? 1 / 4W 5%	6.72k?	6.71k?	6.71k?	6.83k?
resistor	680k? 1 / 4W 5%	0.679M?	0.679M?	0.676M?	0.6846M?
diode	BYW98-100	0.365V	0.369V	0.29V	0.480V
dioda	STTA506F	0.383V	0.398V	0.312V	0.541V
dioda	1N4937	0.458V	0.459V	0.346V	0.570V
dioda	1N4004	0.528V	0.557V	0.414V	0.657V
kondensator	820pF 1.6kVDC/0.65kVAC	1125 pF	734 pF	898 pF	813 pF
kondensator	22nF 630VDC	22.31 nF	19.97 nF	23.7 nF	22.16 nF
kondensator	1µF 50VDC	1.028 µF	0.901 µF	1.223 µF	1.023 µF
kondensator	100µF 50VDC	102.8 µF	85 µF	101 µF	95.66 µF
tranzystor	BF459 (hFE >26)	n/a	on	79	84	UNIT does not measure hFE, DT9208A V1 has a damaged base

In addition, separate measurements by the M328 tester:

KT805IM	NPN, hFE = 175, Uf = 555mV
BC211-10	NPN, hFE = 109, Uf = 648mV
MBR20100C	2 diodes, Uf = 310mV
F06C20C	2 diodes, Uf = 556mV
BF457	NPN, hFE = 55, Uf = 642mV
STPS1545CT	2 diodes, Uf = 255mV
SB2040CT	2 diodes, Uf = 206mV
10GWJ2CZ	2 diodes, Uf = 212mV
2SD1431	NPN, hFE = 9, Uf = 578mV
TVR10471	capacitor, 131pF
Red LED	Uf = 1.55V, C = 38pF

Despite the inaccuracy in the measurement of diodes (although in some cases the deviations in the DT9208A multimeter can also be seen), the tester works very well in component testing. After placing it in an ergonomic housing, it can be used for a long time in an electronics workshop.

He arrived looks whole. I will probably check it tomorrow. Because today .....

As for jumping out the LCD from the frame, this type has it. My (not from Electrode) also reached "jumped out". And even when moving or using it, he liked to jump out. You have to paste. Yes LCD and frame, because after time and it will start to fall off However, the clutch is simply brilliant. If, for example, UNIT had built such a system + a classic multimeter in one solid housing, I would be blind

I received the parcel today as well. All in all, the whole and healthy-display has jumped out of the frame, but it's all over. Everything works. lovely thanks PS I'm a bit disappointed ... I did not get the elektroda.pl stickers and I wanted to put them on the tester housing

How does this tester handle LM stabilizers have three damaged or can not recognize them?

Christophorus wrote:

The tester has reached me and the damage in the upper left corner of the display. Despite the seemingly minor damage, the top of the display does not work. Below are photos from the tests.

I'm sorry, I returned the points, I will add to consolation that you will have the opportunity to order with housing, and others must earn something, so it's worth to wait a month The 3-month limit will not apply to you. I reserve art for you and your predecessor, so you do not have to worry about buying. Added after 2 [minutes]:

Christophorus wrote:

I look at the photos of my tester with a damaged display and tester with a damaged display from post # 96 and both failures are the upper left corner of the display. Maybe it's not the effect of "professional" mail services, only faulty copies are from "Chinese". Two testers and display damage in the same place. A strange coincidence.

They were browsed through the foil and there were no such damages. It must be remembered that they not only stamp the stamps, but also on the other hand as the parcel will appear in the post office. The next ones will be better packed, in particular that there will be a housing to be folded. Added after 1 [minutes]:

piterek-23 wrote:

I'm a bit disappointed ... I did not get the elektroda.pl stickers and I wanted to put them on the tester housing

It's weird, but I promise you will get x2 next time you order. Just reply to the PW after ordering.

As I promised, I checked at home and the tester works. Although I tested only one resistor NPN transistor and diode for lack of time. Everything is in perfect order. By the way, the display also flew loosely in the packaging. Until the organization of the housing, I stabilized it with adhesive tape without removing the protective foil. For more accurate tests I need to take some time. Is any instruction available, for example, calibration and other functions somewhere?

gulson wrote:

piterek-23 wrote:

I'm a bit disappointed ... I did not get the elektroda.pl stickers and I wanted to put them on the tester housing

It's weird, but I promise you will get x2 next time you order. Just reply to the PW after ordering.

Thank you very much. If I do not forget, I will remember it

When will the next testers be and will they have an electrode logo? so original!

Tester arrived today at 9.30 am just when I left the house At 12.15 I started unpacking the parcel and checking the tester. Shipment packed correctly (although in my opinion, a thicker foam would be indicated) nothing moved or dropped. I checked, testing two resistors, a capacitor, a LED and a transistor in the Darlington circuit with a built-in diode. Darlington displayed as a single transistor but its diode is correctly identified and displayed. Results of three measurements: 100nF (factory marked) 94.71nF (tester) 96.4nF (meter) 24k? (factory marked) 23.32k? (tester) 22.9k? (meter) 1? (factory marked) 1 , 12? (tester) 1.0? (meter) Now a curiosity. I measured the thyristor, whose symbol was blurred but I was sure that it was TESLA KT20? The tester identified it as an NPN transistor , hFE = 28. Identification of legs 1-base, 2-emitter, 3-collector. I came up with an idea to turn the thyristor by 180 ° (1 leg took the place of 3) After re-inserting it was correctly identified as a thyristor, where 1-anode, 2-gate, 3-cathode. I am asking colleagues to check their copies or correct identification of the thyristor depends on the position of his leads in the tester's socket. Caliper - SUPER ball pen. The wife decided that this is what the blondes liked most about the diamonds and appropriated it immediately after watching. Stickers also came. Thank you.

Tomorrow I will examine this, I checked the truth of the thyristor, but the result was correct, so it did not occur to me to turn it over.

CMS wrote:

the result was correct, so it did not occur to me to turn it over.

I wonder if this is always the case, or whether it depends on the parameters of the thyristor, for example certain types identify correctly (regardless of location) and others do not. If the first measurement was correct or if I did not remember that it was a thyristor, I would not see a reason to turn it around

I have at least three types, in stock. I'm getting ready tomorrow.

And from the finger on the SMD test piece comes the capacitor. Sometimes it will show the capacity itself, sometimes with Vloss (what is the parameter?) And sometimes full grazing with ESR.

So it works correctly

He feels he'll buy it, either from the store or from the Chinese These ZIF stands, they say they are very uncertain and impermanent, right?

True, after several dozen uses, problems with the contact begin. pozdr

Jawi_P wrote:

These ZIF stands, they say they are very uncertain and impermanent, right?

If someone uses them like a monkey with the strength of an elephant, then probably To credibly say something, you have to remember (approximately) how many times they were used before they broke down. Added after 2 [minutes]:

rs6000 wrote:

True, after several dozen uses, problems with the contact begin.

It's hard to believe, but you can (as one of your colleagues wrote) make extra money.

ZIF is unfortunately the weak link of this tester. I recommend such a housing for PLN 10 and replacing something else with this ZIF: I described the work here: https://www.elektroda.pl/rtvforum/topic3354445.html#16559370

p.obelix wrote:

How does this tester handle LM stabilizers have three damaged or can not recognize them?

No, let's not demand too much from these testers. They are probably intended in the original idea for discrete elements, and LMs, although they only have 3 outputs, contain an integrated structure consisting of several or several dozen transistors. For example, here: https://www.onsemi.com/pub/Collateral/LM317-D.PDF http://www.datasheets360.com/pdf/-8576501594162910327 However, before I read your post, I did LM317 tests out of curiosity. and LM7812. My T7 on both shows "No, unknown, or damaged part" and displays the diode symbol. Regardless of the order in which 1-2-3 pins are connected. EDIT As you can see in the picture, the diode symbol (with the mysterious code 4) is nowhere connected. I think the tester suggests that he probably detected some semiconductor element, but he can not identify it.

HD-VIDEO wrote:

As you can see in the picture

Pins KAA what are the contacts, what are they used for?