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 am trying to read a reference at 1.24 V,
and with the PXI-6289, I get anywhere from 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!
