Slope/Intercept Offset
If the asphalt sample gradation has changed, the original
calibration can be adjusted with the slope/intercept offset
(Figure 6). Two samples of known %AC must be prepared and
tested in the gauge. The gauge calculates a new curve slope and
intercept based on the offset samples. The original calibration
will be adjusted by the calculated slope and intercept. This
method enables the user to quickly adjust a calibration when
more than three samples were used for the original calibration.
NOTE
An original 2-point calibration can also be performed
using the two offset samples.
Press 〈SHIFT〉 and 〈8〉 for the Offset display:
Exit by pressing 〈3〉.
If the calibration number is known, press 〈2〉. To perform
the offset, select the type of offset and follow the gauge
prompts.
To scroll through the calibrations stored in memory, press
〈1〉. The display is:
To view the calibrations stored in memory, press 〈1〉 and 〈2〉.
Select the calibration for offset by pressing
〈3〉. Perform the
offset by selecting the method and following the gauge prompts.
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