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Troxler RoadReader Plus 3450 - QA Sampling (Special Key)

Troxler RoadReader Plus 3450
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3–24
If the Thin Layer mode is selected, the gauge prompts for the
overlay thickness. Use the number keys to enter the overlay
thickness, and press the
ENTER key.
The gauge enables the selected measurement mode and returns to
the Ready display.
QA SAMPLING (SPECIAL KEY)
The QA Sampling function generates random sample locations.
Using random sample locations helps ensure fair and representative
quality assurance sampling. The gauge bases the QA sample
locations on the operator input for average sample separation and
total number of samples. The average sample separation is the
average distance between QA samples.
For example, if the QA protocol requires a sample every 500 feet on
a 2000-foot strip, the samples will be randomly separated and the
number of samples will be four. The first location will be a
randomly selected value between 1 and 500; the second between
501 and 1000; the third between 1001 and 1500; and the fourth
between 1501 and 2000.
After the gauge generates the sample locations, the operator can
view or print the locations as a guide for QA testing.
To access the QA Sampling menu, press the SPECIAL key. At the
Special functions menu, access the Special Operation menu by
pressing
1. At the Special Operation menu, press 5 QA Sampling
(use the arrow keys to scroll to choose QA Sampling). The gauge
displays the QA Sampling menu:
Use the corresponding number key to select a menu option.
QA Sampling
1-
Set-Up Locations
2-
View 3- Print
Press
ESC
to Exit

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