Adjustment Techniques; Point Adjust - DeFelsko PosiTest PC powder Cheker Instruction Manual

1-Point Adjust – The first and most common choice.
2-Point Adjust – Used only if a 1 Pt Adjust does not
sufficiently improve accuracy.

1-Point Adjust

1. Spray approximately 75 microns (3 mils) of powder onto a
flat, smooth metal sample.
2. Select 1-Pt Adjust
3. Take at least 3 uncured powder
measurements 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. Cure the powder. The instrument will power off after 5
minutes of inactivity, but the uncured powder measurements
will be retained.
6. Measure cured thickness with a magnetic or eddy current
dry-film thickness gage. Record the results.
7. Power-up the instrument, and select 1-Pt
select the
Adjust
This only appears if 1 pt adjustment
NOTE:
readings have been stored
8. Adjust the displayed reading lower
higher to match the cured thickness value.
Select OK to store the adjustment.
9. Verify accuracy (pg. 7) to ensure the instrument is
measuring within tolerance.

Adjustment Techniques

from the gage menu.
from the gage menu and then
option.
or
8