Here is my problem. I have a PXI-1033 box with a PXI-2529/TB-2834 and a PXI-4070 in it. I took the niSwitch DMM Switch Handshaking example and removed the While loop so it would scan 8 channels and stop. I have my scan list set and everything runs without any errors. I have the range set at 100 and the "resistors" I am scanning are all open at this point (I do get an out of range warning). I expected to read all NaN at this point but I get an array of NaN with a number like -70.2589 and -50.142 somewhere around the 4th to 6th element. I would like to measure reply contacts of less the 50 milliohms and confirm the other half of the contacts are open. I planned on testing for over range to indicate open contacts but the value returned baffles me. Looked at the examples and knowledgebase and tried several things with no success. Any ideas on where to start?