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Troxler RoadReader Plus 3450 - Page 91

Troxler RoadReader Plus 3450
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6–
Enter Moisture Offset (Keypad Entry)
Use standard laboratory methods (for example, oven drying, and so
on) to determine the true moisture content of a sample taken at the
measurement site (%M
LAB
).
Take a gauge reading at the site. Record the reading (%M
GAUGE
).
Take multiple samples and measurements, and calculate the average
moisture of the samples. Use this average value for the offset factor
calibration.
Calculate the offset factor (k), using the following formula:
k =
%M
LAB
%M
GAUGE
100 + %M
GAUGE
×
1000
Access the Offset menu by pressing the OFFSET key. Access the
Moisture Offset menu by pressing 2.
Press 3 Change Offset, then 3 Keypad Entry. Follow the gauge
prompts to enter the true moisture and gauge moisture reading. The
gauge displays the moisture offset (k) and prompts the operator to
save. To save the offset, press the
YES key, then select one of the
four memory cell locations.
Moisture Offset
K=xxxx
1-Enable 2-Disable
3-Change Offset

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