[Mike Copioli]

Originally Posted by Greg Marra

While I have not been able to test it myself, Mike Copioli has suggested a work around to this problem using a voltage divider to provide the correct amount of current to 'trick' the OI. See his post for more details and math.

There is an amendment to this proceedure. You need a 1kohm resistor in series with the 10k pot between ground and the pot. This resistor provides a voltage offset of about 500mV.(%10 of Vaux.) If you do not do this, as you approach the ground side of the wiper travel, you will cause the O/I to read 127.


The 1k resistor is not an absolute value it may need to be increased or decreased depending on the total resistance of the pot. But it will get you close to center.