Hello! I am looking into making a 4 wire setup for impedance measurement over a membrane as shown below (left). I was thinking I could use the BNC adapter and connect wavegen 1 and channels 1 and 2 as follows (right) and then use the WaveForms Impedance Analysis tool to do the measurements. However, after some experiments with the software, it seems that WaveForms bases its impedance calculations on what reference resistors you chose, which I don't have in my setup. Is there any way to