Electronics > Beginners
4 wire resistance measurement
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Specmaster:
The leads I show my post #10 are simple to use and depending what meter you are using them on it will be labelled in one of 2 ways or maybe both ways, LO and HI or maybe Red and Black, but either way the black leads go into the black or LO sockets and the red plugs into the HI or red sockets its as simple as that. There is polarity difference between either of the reds or blacks, it just simple connects one of the grips on the clip to input and the other to the sense connection. When these clips are connected to a resistor, they both connect at the same location on the resistor
rherber1:

--- Quote from: cowasaki on August 08, 2018, 02:31:06 pm ---Now to find some good quality banana plugs! I need quite a few as I need four for my PT100 probe as well.

--- End quote ---

If you don't want esoteric gold plated plugs I can recommend the Radiall 4mm insulated banana plugs shown on page 20-15 of this document.
https://www.radiall.com/media/document_library/COAX_Section20_2017_Banana.pdf

The arched spring maintains good tension over many years. I still have a swag of red and black from a batch I purchased around 1989.
GreyWoolfe:
Thanks for this thread!  I made a set of Kelvin clips for my GW Instek 851A.  I decided to actually check them.  Found out by the pictures here that I had assembled them wrong and they didn't work.  Now they work as they should.
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