negative signal to zero

[coolrthancoolio]

I need help on turning a negative value read from sensor into zero on my waveform graph. So far I have calibrated my sensor on my tank setup. The problem Im having is that I see a negative PSIG on my wave form graph because of my calibration when the actual PISG is Zero.How do i make the negative values become zero then when its positive have the regular data...

[Brian_P]

coolrthancoolio,

The best way to do this is in your DAQ assistant I would use a custom scale instead of doing that calculation outside of the DAQ assistant.  In the custom scale you can take voltages and map them directly to PSIG or use a slope intercept formula.  This is a far more effective way of creating a map voltages to other units.  I hope that helps.

Regards,

Brian P