Hello Ramkumar,
For the PCI 7352, there is only one amplifier that is used for all of the board's analog inputs. This means that there is only one range that can be specified and it will be applied to each analog input channel.
If you want to have multiple ranges, you may be able to perform some signal conditioning before the signal reaches the board and then manipulate the data in LabVIEW or another programming environment to scale it to reflect the actual readings that were acquired.
Regards,
Scott R.
Applications Engineer
National Instruments
Scott Romine
Course Development Engineer
National Instruments