Hi
I am using a E series card with Labview 7.1. i am trying to read voltage from a voltage source.I am using a conditioning box that is connected to a BNC 2090 and from here it is feed in to NI card in PC.i checked the volts via volt meter. it gives me 0.97 volt now when i try to acquire this voltage using labview i have two options either i can select differential mode or SRE mode with SRE mode it gives me 0.97 but with differential mode it keep on increasing until it reached to 4.9 the maximum range of voltage.I cannot understand this can any body please help me in understanding it.
