zmanvortex
Member
OP
I am still going to use the 24vdc.
By using a 1k pot and 1.1k resistor in series with the wiper and analog input the linearity is good enough for the application.
Basically the pot isn't going to be used for absolute time adjustment but rather for a relative adjustment to allow the operator to tweak the operation.
Being the programmer that I am I wrote a utility in C# to allow me to test the linearity and different pot, supply voltage, and resistor values.
I have included a screenshot and if anyone would like to have it I can zip it as an attachment. .NET Framework 1.1 must be installed on the users computer for it to work.
By using a 1k pot and 1.1k resistor in series with the wiper and analog input the linearity is good enough for the application.
Basically the pot isn't going to be used for absolute time adjustment but rather for a relative adjustment to allow the operator to tweak the operation.
Being the programmer that I am I wrote a utility in C# to allow me to test the linearity and different pot, supply voltage, and resistor values.
I have included a screenshot and if anyone would like to have it I can zip it as an attachment. .NET Framework 1.1 must be installed on the users computer for it to work.