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Strain Excitation setting, effect on output

Hello all,On a PCI-6221 / SCXI-1520 / SCXI-1314 system, I am setting the excitation voltage to 1, 5, or 10V, and my unloaded reading is different with each setting, but the output change vs. pressure is proportionally the same. (i.e., applying 50 ft.lbs gives the same delta from zero with each different excitation applied). Could there be something in the 1314 that is doing this? I am not familiar with how it has been setup internally.  Thanks!

 

Richard






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Hi Broken Ar...,

 

This is expected behavior, since different sypply voltage cause different offset result.

To correct it in software, try adjusting initial voltage when setting up the task for each supply voltage.

 

Regards, Kate

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