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8. Making a user calibration curve
The moisture value can be corrected by the following
linear equation with the range of the calibration curve
slope 0.1 to 1.9 and intercept -9.9 to +9.9. Overmore,
the corrected calibration curve can be stored in cannel
No.02 to 15 as a user calibration.
* As an example, if the measurement values from the
channel No.01 have a relationship as shown in the right
graph compared to the standard method, correction
values obtained by regression analysis from comparison
test results on several moisture level of sample are 1.10
slope and 1.0 intercept.
The user correction formula is shown as follows:
Measurement Value after Correction (%) = Correction Coefficient A × Measurement Value before Correction (%) + Correction Coefficient B
* If channel No.01 has already been corrected by another correction method shown in 7.4 on page 15, cancel this
correction and then perform a comparison test with the standard method.
* Since the unit of the set value of the slope is the magnification, the slope of 1.00 is the original slope. The unit of
the intercept set value is the same as the unit of moisture, so 0.0 is the original intercept. A state of slope 1.00 and
intercept 0.0 means no correction.
<Comparision test>
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CH01 on this instrument
