Dear All,
I'm using the analog inputs in NRSE mode of a PCI-6259 Card to measure the voltage of the elements of a battery, I have built a simple resistive divider to adapt the voltage of the battery to the voltage range of the card, I have connected the AIsense to the ground of the battery and the AIn to the its elements
the probelm that I have found is that when I connect a voltage source to one of the analog input I found a proportional ( roughly one tenth ) to the subsequent input
i.e. if I apply 10V on AI0, immediatly 1.1V appears on AI1
I checked the electric circuit and it works right if I don't connect the card
I tried also to change the card setting in RSE mode but with the same problem
do someone know the reasons of this phenomenon?
thanks in advance
Grammofono
