| Products > Test Equipment |
| High resistance leads on meter |
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| TomKatt:
--- Quote from: Stray Electron on February 24, 2023, 04:10:39 pm --- That said: Yes some leads have more resistance than others but ALL test leads have some resistance and that resistance has to be taken into account if you're testing DUTs that have very low resistance. --- End quote --- I've never observed dual digit resistance values from the test leads alone on any decent DMM. If you cross probe tips, you should certainly have less than 10 ohms IMO. The leads are the DUT in that case. |
| shapirus:
I have yet to see a set of leads that (when new) measure higher than 1 Ohm. I have not however measured any of the crappy leads I have that came with the cheapest meters, maybe they would. |
| bdunham7:
--- Quote from: Qmavam on February 24, 2023, 03:20:46 pm ---I'll be ordering the ProbeMaster probes. --- End quote --- You may want to consider getting this style. The sharp spring tips are nice for probing small things and PCB traces. They are hand-assembled and sometimes look like it, but they work very nicely. I'd also recommend the retractable bananas over the right-angle. https://probemaster.com/spring-loaded-micro-tip-test-leads-only/ |
| shakalnokturn:
Do you have a decent constant current lab power supply and thermal camera ? |
| Qmavam:
I received my ProbeMaster probes. On the MΩ scale, it immediately reads 0.2Ω then increments to 0.0 within 4 seconds. On the beeper/Ω scale it starts with a flash of high numbers then drops to 0.4 and takes 6 seconds to reach 0.0. So the probes are great, I don't understand the 0.0Ω. Is the meter calibrated to remove lead resistance? Happy with my lead kit, not happy with the $54 price. Hopefully they will last 20 years, when I don't expect to need them any more! Qmavam |
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