I am trying to configure a linear motion potentiometer on the SCXI-1100 with a 1300 terminal block. My first problem is that my voltage readings are all screwed up. When I just try to measure the voltage by putting the positive lead on CH0+ and the negative lead on CH0-, interesting things happen.
When my voltage source is off, it gives a reading of 10V. When it is on but turned down all the way, it is unstable with peaks but no troughs. When it is turned up just a little bit (not nearly 10V). It jumps to 10V.
To connect my potentiometer, I run the voltage across the whole thing and then put the middle wire into the positive channel input and put the negative channel input common with the negative voltage source.
When
I don't touch it, the signal is pretty steady close to zero. When I move the shaft a tiny bit, it jumps up to 10V and stays there the rest of the way in. This happens reguardless of whether my voltage source is set to 10V.
I tested my voltage source with a multimeter and it is working correctly. I believe I have all the wiring right, but there may be something that I have missed (I am very new at this). If anyone can help, I would appreciate it as I have been working on this for a very long time with no success.
-Andy