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DeFelsko PosiTector UTG v.3.1 Full Manual User Manual

Page 14

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Thickness

The most common method of adjustment is to measure a sample
of known thickness. Select a reference standard of material as
close as possible in composition to the intended application. For
best results, the thickness of the reference standard should be
equal to or slightly greater than the thickness of the part to be
measured.

1. Apply a drop of couplant onto the reference standard.
2. Measure the reference standard.
3. Lift the probe. Select Thickness from the Cal Settings menu.
4. Adjust the display down (-) or up (+) to the reference thickness.
5. Press to the store the adjustment and exit.

Material

If a known thickness of the material is not available, but the
material is known, this quick adjustment allows the user to load
one of several preprogrammed material velocities.

1. Select Material from the Cal Settings menu.
2. Navigate to the desired material
3. Press to select and exit.

Velocity

If the sound velocity for the test material is known, the Gage can
be adjusted to that specific sound velocity