i am testing the Indio_Analogin sketch to read a 4-20 ma signal generator. it seems that the maximum value being read by the d21g stops at around 15 ma and does not go above that. yet, my signal generator has no problem to generate signal up to 20 ma.
does anyone know what could be the problem. do i need to perform a calibration? i did not think that the d21g will be so far out though.
thanks anyone who can help me out here.
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