DeFelsko PosiTector UTG v.3.1 Full Manual User Manual
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wheels may be necessary using care not to gouge the surface.
Or
4. There may be a coating on both sides of the metal. Switch to SE
mode for best results.
ME (multiple echo) and SE (single echo) results are not the
same
When measuring a COATED piece of metal, ME and SE modes
will likely produce different thickness values as expected. The ME
value will be thinner since it represents the thickness of only the
metal (ignores the coating).
Measurements of an UNCOATED piece of metal, however, should
be the same (within tolerance) except in the following
circumstances…
Surface Roughness, scale, etc.
ME mode may produce thinner measurement results because it
may ignore the surface roughness in much the same way it ignores
coatings.