No. 99MBB122A
7-20
7.9 Setting Pre-travel/Post-travel
Pre-travel/post-travel can be set to “OFF” for cases where evaluation profile “R” is
selected and the measured surface is extremely short, etc. By setting
pre-travel/post-travel to OFF, the traversal length can be reduced by as much as the
length of the pre-travel and post-travel lengths, thus making it possible to measure the
narrow surface.
The factory-set default of the pre-travel and post-travel is set to “ON”.
IMPORTANT
• Set the pre-travel and post-travel to “ON” unless otherwise required. When pre-travel or
post-travel is set to OFF, very small errors may be introduced into the calculations due
to measurement differing from the standard.
• When the evaluation profile is “P”, “R-Motif”, and “λs” is set to “NONE”, the filter cannot
be calculated and as a result, pre-travel/post-travel is fixed as “OFF”.
TIP
• For more information about the traversal length, refer to 18.4, “Traversal Length”.
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