Hello,
I have a multifunction DAQ, the PXI-6289 connected to a BNC-2110 breakout box. I have BNC cables connected to the box that split into alligator clips on the other end. I am trying to setup a LabVIEW VI to take some very basic, precision voltage measurements. I noticed that when I configure the measurement using the NI supplied DAQmX drivers, I get really inconsistent voltage readings that flucuate greatly between measurements. For example, I have a reference set to 1.24 V. With the PXI-6289 I get readings anywhere between 1.23-1.25 V. I have tried configuring through NIDAQ Asistant as well, still no luck. I have tried changing the terminal configuration from Differential to RSE and NRSE as well. Is there a way to set, or configure the input resistance?
In comparison, I also have the PXI-4071 Digital Multimeters hooked up in my setup. When I take voltage readings with the DMM, I get rock solid consistently that verfies nicely with a standard benchtop unit. Ideally, I would really like to be able to get the multifunction DAQ working as well so that I can maximize the number of inputs avaiable. Any help is appreciated. Thanks for your time!
