Dear All,
I applied voltages on AI0 & AI equal to 20.3 Vpp and verified correctly on the oscilloscope at these points. However the highest Vpp data acquired = 19 Vpp only. A 1.3 V deviation is quite huge. Similarly applies to all my voltage measurements (including those less than 20Vpp)wherein they are 1 V or 1++ V less than the expected measurement.
I verified the measurement using MAX and it yielded the same results. There are no missing samples. I even maxed out the sampling rate and yet I have undervoltage. By the way, I also tried another module, NI 9201 and again the same results occurred.
My 9205 configuration is set to NRSE.
I simply can't decipher why. How can it be fixed?
Thanks,
A
Message Edited by angelmcdoggie on 02-12-2009 11:33 AM