Hi, I have two of these testers, AY-AT and T3-T4 with the same firmware, ver. 736 running @16MHz. When measuring small inductors <100uH in this case ~30uH, the T3-T4 version looks like it display the correct inductance. On the AY-AT version with the same 30uH inductor, it displays "50nH if 21nF" (yes "50nH if 21nF" not a typo) what does it mean? Also, both testers displays some sort of frequency in kHz what does the frequency mean? Any way to have the AY-AT version display the correct inductance?
Maybe it is all related to the previous post, I just verified that both version have a 10uF capacitors on the input and output of the Vcc regulators.