Products > Test Equipment
Fnirsi -TC3
siealex:
--- Quote ---Seems to be better not to trust the ESR values of the TC3.
--- End quote ---
However, the capacitance values are correct. How?
watchmaker:
Phil1977:
It seems the transistor tester results are to be taken with care in any case.
A super simple 5.1kOhm resistor is recognized as a double diode in the DSO-TC3:
And it´s not a fluke (pun intended), the TC3 repeatedly shows the same result - also with different pin connections.
The €7,- "T7 Tester" with the same resistor:
It seems FNIRSI just copied the transistor-tester code into it´s product with quite little care about how good it performs.
Aldo22:
--- Quote from: Phil1977 on August 25, 2024, 12:45:57 pm ---It seems the transistor tester results are to be taken with care in any case.
A super simple 5.1kOhm resistor is recognized as a double diode in the DSO-TC3:
--- End quote ---
Have you ever calibrated the thing?
That can help.
I have the DSO-TC2, but I am not aware of any such errors.
Phil1977:
--- Quote from: Aldo22 on August 25, 2024, 12:58:19 pm ---
Have you ever calibrated the thing?
--- End quote ---
Yep. Didn't change a thing.
I checked it with a variable resistor: Between 4kOhm and 6kOhm I get the "2 Diodes" error. Other resistors seem to be okay. :-//
Probably the TC3 just got too complex for FNIRSI. The transistor tester code itself is an absolute miracle that needed years of debugging and lots of iterations. Putting it into another "all-in-one-wonder" may just be too much.
Just FYI, I have firmware V0.3
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