I am trying to put together a system that is capable of measuring 48 current shunts that I would like to maintain isolation from the SCXI chassis ground. I am considering using a PCI 4065 and an SCXI-1127 or 1128 switch module, 2 of one of them. What I am unsure about is which type of switch I should use, the solid state or relay? Also I am not sure how the termination of wires should be made. Each shunt will have two wires coming from it. Should these two wires from each shunt go into the switch module and are then all terminated at the DMM? Is there a cleaner way to do this or is my assumption incorrect on the wiring strategy?
Is there a better solution?
Will the DMM provide results similar to a handheld DMM? i.e. averaging the voltage level read.
thanks in advance.