A. Use the MP Manager program to set up the sensor definition and determine the engineering units to be used. Take an initial reading with no load. This reading will be used as the “Datum” in the “Datum Reading tab” in MP Manager. Enter the value as expressed in desired engineering units. Check the box to subrtract this datum from following readings. Leave “Offset” and “Sensitivity” as %FS (percent of full scale), as noted on the calibration sheet.
The “Offset” is defined in units of %FS and is divided by “Sensitivity” after being subtracted from the reading. On the other hand, “Datum” is subtracted from the calculated result without further modification. Consequently, the “Sensitivity” and “Offset” are normally entered directly from calibration sheet while “Datum” is used to zero the no-load reading.
The no-load reading is usually slightly different from zero because the calibration uses a best fit method.
Please note that the DataMate MP has been discontinued and is no longer supported by DGSI.