load cell amplification with scxi 1520.

[engr.Ahsan]

Hi, 

I am using futek 302 load cell with NI - 1520 scxi module, i have created a daq taking using NI max and configured the settings accordingly.

i.e. gauge factor =2, excitation voltage =5 , gauge resistance = 1k (as per datasheet),  all i am getting output in millivolts or microvolts, it is showing changes over tension and compression but the output is very small for algorithm. 

I need to increase the gain of 1520 module. 

what do i need to change to tune my gain, i have already made a try by increasing excitation voltage. 

[MichaelDB]

Hi engr.Ahasan,

Using DAQmx, the gain settings for the SCXI-1520 are not directly accessible.  Instead, they are determined based on the configured input range for the task.  If you configure your input range, it will automatically select the largest gain that does not saturate your DAQ device channel.

http://www.ni.com/pdf/manuals/372583e.pdf

Thanks,