DeFelsko PosiTector UTG v.2.2 - Manual (Page 12)

12
2 Pt Adjust
A 2-Point adjustment allows for greater accuracy
while simultaneously adjusting probe zero. Select
two reference standards as close as possible in
composition to the intended application. For best
results, the thickness of the thicker reference
standard should be equal to, or slightly greater than
the thickest part to be measured. The thickness of
the thinner reference standard should be as close as
possible to the lower end of the expected
measurement range.
1. Select the Cal Adjust 2 Pt Adjust
menu option.
2. Measure the thinner reference sample.
3. Lift the probe from the sample and adjust the dis-
play down (-) or up (+) to the expected thickness.
4. When the expected thickness is reached, press
5. Measure the thicker reference sample.
6. Lift the probe from the reference sample and
adjust the display down (-) or up (+) to the
expected thickness.
7. Press to store the adjustment and exit.
Velocity
If the sound velocity for the test material is known,
the Gage can be adjusted to that specific sound
velocity by performing the following steps.
1.Select the Cal Adjust Velocity menu option.
2.Adjust the display down (-) or up (+) to the
desired velocity. Holding the (-) or (+) buttons
increases the rate of change.
3.When the desired velocity is reached, press
to store the adjustment and exit.