Ametek Surtronic 25, Руководство пользователя

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Surtronic S25
Evaluation Length
A long evaluation length is mainly for use on sheet metal and
similar materials, where a longer surface is required to be
representatives of the material being examined.
Table of Cut-off values
If not otherwise indicated on a drawing, the following should be
used to determine the cut-off
λ c (ISO4288)-1996.
Recommended Cut-off ISO 4288-1996
Periodic
Profiles Non-periodic
Profiles
Cut-offs Sampling
Length/
Evaluation
Length
Spacing
Distances
Sm (mm)
Rz(µm) Ra (µm) λ c (mm) λ c/L (mm)
>0.013 to 0.04
>0.04 to 0.13
>0.13 to 0.4
>0.4 to 1.3
>1.3 to 4 (0.025) to 0.1
>0.1 to 0.5
>0.5 to 10
>10 to 50
>50 to 200
(0.006) to 0.02
>0.02 to 0.1
>0.1 to 2
>2 to 10
>10 to 80 0.08
0.25
0.8
2.5
8 0.08/0.4
0.25/1.25
0.8/4
2.5/12.5
8/40
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