Products > Test Equipment

QPLink LCR 1S Smart Tweezer [100Hz - 120Hz - 1kHz - 10kHz - 100kHz] ≈ 50$

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ivan1956:
Now about the disadvantages. It makes measurements of diodes, one can say, no better than FNIRSI LCR-ST1 (with firmware version 1.5). That is, it determines the polarity of the connected diode, shows some kind of voltage drop at the semiconductor junction, but it seems impossible to believe this (like FNIRSI LCR-ST1, it does not show the sum of voltage drops on series-connected diodes, as Shannon ST42 and HP-990C do, but some abstract number). It does not recognize two series-connected silicon diodes, it recognizes only germanium diodes (Schottky diodes were not used).

u37:

--- Quote from: ivan1956 on October 29, 2024, 09:57:44 am ---Measures the voltage (deviations from the source of the reference voltage are hundredths of a volt).
--- End quote ---
You should first measure the input resistance of this "meter". If they were too lazy to turn off the generator, then you are in for a very unpleasant set-up. And you need to know about it.

TheRegister:
It'd be great if you can check that they really go to 100kHz/0.1V signal level. Might be also a good idea to check with the seller if he can provide user manual and/or point you to the maker's site and FW updates.

themaster1:
Hi guys, this is my first post here.

I just recently bought my very first ESR tester (model  QPLCR ) and i'm struggling with a few things
1- The language is in chinese if someone knows a trick to enable english i'd be grateful
2 - No manual so i guess i'll have to learn by myself (i'm a total newbie in the ESR test world)

tigrr:

--- Quote from: themaster1 on November 24, 2024, 10:08:35 pm ---Hi guys, this is my first post here.

I just recently bought my very first ESR tester (model  QPLCR ) and i'm struggling with a few things
1- The language is in chinese if someone knows a trick to enable english i'd be grateful
2 - No manual so i guess i'll have to learn by myself (i'm a total newbie in the ESR test world)

--- End quote ---
QPLCR User Manual - PDF, 1.58 Mb https://mega.nz/file/I5UABC6C#jVBlZjjKRdjQ-qyR2wumsVWKOKlYn0bU0DAoV51bvQk

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