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How to zero strain gauge before taking data???

Hi
I have a DT80 series 4. I using a current bridge to read strain gauges that are connected to a bridge completion module. Is there any way for me to zero them out before taking data?

Hi I have a DT80 series 4. I using a current bridge to read strain gauges that are connected to a bridge completion module. Is there any way for me to zero them out before taking data?

Hi Scott,

To zero out the strain gauge, you can add an extra schedule using the same bridge channel and read it when no strain is applied to the strain gauge. Save this value into a CV and use it to negate the measurement.

Example:

BEGIN"Strain"
RA5M LOGONA
1BGV("Strain_Raw~ppm",=2CV,W)
3CV("Strain~ppm")=2CV-1CV

RBX
1BGV("Offset~ppm",=1CV,W)

END

Best regards,
dataTaker Expert

Hi Scott, To zero out the strain gauge, you can add an extra schedule using the same bridge channel and read it when no strain is applied to the strain gauge. Save this value into a CV and use it to negate the measurement. Example: ```` BEGIN"Strain" RA5M LOGONA 1BGV("Strain_Raw~ppm",=2CV,W) 3CV("Strain~ppm")=2CV-1CV RBX 1BGV("Offset~ppm",=1CV,W) END ```` Best regards, dataTaker Expert
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