Quote Originally Posted by cropwell View Post
I would guess that 100K impedance means that internally the input has the equivalent of a 100K resistor (impedance is AC resistance, so not quite the same as DC resistance). This is to limit current when the potentiometer is at the 10v end.


My further guess is that the input has an internal filter.

Please somebody inform me if I am way off beam!

Rob.
Mmmmm now I assumed the 0 - 10v input was DC