Hi guys, i want to measure the resistance between 2 points using my 6221 DAQ card.
I've searched through the example finder and i found 3 examples on resistance measurement. Now, since i only need to measure on a single instance value thus i tried using the first one (Acq Resistance Sample.vi).
However, in this vi it does not state how do i connect the points to my DAQ. Naturally 1 end would be to the physical channel that i've defined in the vi. For the other end i've tried using AGnd but it doesn't seem to work. I tried this vi using a resistor with a known value but i always get an incorrect value of -1k ohm.
Secondly, which do i select for the Resistance configuration section for this vi? Am i suppose to build a simple circuit before i can start measuring my desired resistance? And i can't use internal excitation source as it prompts an error saying that my DAQ card does not have an internal excitation source.
How do i proceed from here?
