Czy wolisz polską wersję strony elektroda?
Nie, dziękuję Przekieruj mnie tam
KMal wrote:And I remember when they blurted me out when I asked for the instruction to fold, because I did not fit the elementsUnfortunately, in the current batch of testers the display on the side of the tape (connection) is wider, which causes the display glass to protrude beyond the plate.
I managed it this way. It was necessary to detach the display in order to cut off a piece of pcb and additional milling of mounting holes because the button is also slightly moved. 
brofran wrote:... refers to the above statements. The point is that two different ones measure what others do not work.Thus, it is not known which conclusion to make of it?
lordwader wrote:Most likely, the cpu ports were damaged, after replacing the cpu and programming it should live. Check the accompanying elements of the cpu. Well, unless it so flashed that there is nothing to collectThe tester died. Is there a chance to resuscitate him or just exchange? K
lordwader wrote:I have not seen capacitors of this type in capacitor meters. The only security is the inscription: BEFORE MEASURING, UNLOAD THE CONDENSER! And from the company practice, there will always be someone who will connect a charged capacitor, damaging the meter.In other words - replacing the tester ... It is a pity that there is no security there.
AdamC wrote:A colleague did not meet muchI have not seen capacitors of this type in capacitor meters.
In my tester Fri T7, which perfectly matches the TC1 tester diagram, which in turn can be viewed in this topic: https://www.elektroda.pl/rtvforum/topic3402823.html there is a security element titled. SRV05-4 (there are application notes on the net). I was saved by a processor in one of these testers, although it was "short-circuited" by myself. But after removing the element, the meter came to life, However, in another copy of the tester, unfortunately, the item failed and ended in processor damage. I would like to add as a curiosity that this first tester was damaged by ... the same tester. Namely, the T7 tester (also TC1) enables measurement of Zener diodes. On the terminals K and A (in the above-mentioned thread are pictures), a voltage of approx. 40V appears. I accidentally put a capacitor in it, and when I realized it, I translated it into the right terminals without thinking. Without unloading ... or rather 
That is why K and A are currently covered with a piece of adhesive tape, which I remove only during measurements of Zener diodes, which take place quite rarely. Quote:Of course, I agree with the above. Nevertheless, a colleague who has been damaged by the tester may look at the tape to see if there is a security element in his device, similar to the one I mentioned above. Greetings.The only security is the inscription: BEFORE MEASURING, UNPLUG THE CONDENSER !!! And from the company practice, there will always be someone who will connect a charged capacitor, damaging the meter.
lordwader wrote:In that case, he took a slingshot ... The question is whether to play in resuscitation? I took one look at the eyed-eyed ones - Ali's TC1 or T7 testers are now 15-20 $ circa, maybe you can shoot cheaper (less than 2 years ago about 30 $). Maybe it is worth going in this direction? You will have a "ready", i.e. with a ready casing, a rechargeable battery (charging by a standard microUSB), even with the Zener diode measurement up to 30V (you only need to be carefulUnfortunately, there is no SRV5-04 on the board
). And with some sort of security, but a guarantee that it will always be protected. Well, but always a bigger chance than not at all
. The price of atmel itself is PLN 7-12 ... here is an interesting thread with the company ... https://www.elektroda.pl/rtvforum/topic3372311-30.html
TL;DR: LCR-T4 auto-tests 14 part types, draws only 12-15 mA per measurement, and “will be useful in every workshop” [Elektroda, TechEkspert, post #16556695] Accuracy stays within ±2 % for most resistors. Firmware flashing adds live-scan mode and Zener tests. Why it matters: you get multimeter-level insight from a €10 gadget.
• Supply: 9 V battery; 12-15 mA active, 20 nA sleep [Elektroda, 16556695] • R range: 0.1 Ω – 50 MΩ, C range: 25 pF – 100 000 µF, L range: 0.01 mH – 20 H [Elektroda, 16556695] • Typical accuracy: ±1 % R, ±3 % C, ±5 % L (user tests) [Elektroda, 16556695] • ESR read-out for electrolytics ≥1 µF [Elektroda, post #16556695] • Open-source firmware: AVR-based, 40 V boost for Zener mode [Elektroda, 16666684]
