what is absolute pressure and where use in process?
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Answer Posted / allenbradley
I agree with sam except for "Remember span adjustments do not
affect your zero but a zero adjustment will affect your span
calibration".
When you adjust zero, span will not be affected, its just like you are moving your zero reference point but span is still the same, no change. When you adjust span it will affect both your zero and span.
Remember your zero shift and span error in basic calibration.
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