Thank You all for reply !
Both variant (mine = 0 max v_cal and variant of Mr.Robert ) give me the same results : 24 .
According of my math, I think this is the value of 24 mVolts. I am right ?
Now I try the variant of Mr.Darrel (remember ? My guardian angel in PBP problems...).
I post the results.
LE : Something strange...with this variant, I read only 5 mV ?!
Maybe the schematic help...
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