9
2-Point Adjust
1.
Spray powder onto two flat, smooth metal samples. Apply
approximately 40 microns (1.5 mils) on the first, and 75
microns (3 mils) on the second.
2.
Select
2-Pt Adjust
from the gage menu.
3.
Take at least 3 uncured powder measurements on the first
(thin) powder sample with the
PosiTest PC
. Press the
button to discard the last reading if it should not be included
in the average of the measurements.
4.
Select
OK
to confirm and store the average of the
measurements.
5.
Take at least 3 uncured powder measurements on the
second (thick) powder sample with the
PosiTest PC
. Press
the button to discard the last reading if it should not be
included in the average of the measurements.
6.
Select
OK
to confirm and store the average of the
measurements.
7.
Cure the powder on both panels. The instrument will power
off after 5 minutes of inactivity, but the uncured powder
measurements will be retained.
8.
Measure cured thickness on both panels with a magnetic or
eddy current coating thickness gage. Record the results.
9.
Select
2-Pt Adjust
from the gage menu and then select
the option.
10.
Adjust the displayed reading for the first (thin) sample lower
or higher to match the cured thickness
values. Select
OK
to store the adjusted
measurement value.
11.
Adjust the displayed reading for the second
(thick) sample lower or higher to match
the cured thickness values. Select
OK
to
store the adjusted measurement value.
12.
Verify accuracy (pg. 7) to ensure the
instrument is measuring within tolerance.
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