Analog inputs are random and they rail

[AlexPSU]

My analog input readings gathered with MAX and also NI-DAQ using Visual C do not make sense. The input readings are random and frequently rail at their maximum and minimum values. I'm using the PCI-6036E DAQ board. How can I fix this problem?

[AlexPSU]

I figured out the answer to my own question. When operating in NRSE mode, make sure to ground the source voltage to AISENSE and not to AIGND.

[Filipe A.]

Hello;

It's looking like you either didn't make the connections on the correct pins that correspond to the input channels you are reading from MAX, or you don't have a valid signal source connected to the Analog Input channels.

Regards
Filipe A.
Applications Engineer
National Instruments

[AlexPSU]

Thanks Filipe,

I was using the wrong ground.