Festo Checkbox Compact CHB-C-X, Руководство пользователя

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A. Technical appendix
A−12
Festo P.BE−CB−COMP−en en 0503c
A.3 Examples of ascertaining the features
A.3.1 Band width and tolerance
The band width B specifies the extent to which the value of
the feature may vary upwards or downwards.
The tolerance T specifies the percentage increase in the band
width of each feature, related to the average value of the fea
ture.
C
max tol
+
C
max
)
A
T
100
C
min tol
+
C
min
*
A
T
100
B
+
C
max tol
*
C
min tol
+
C
max
*
C
min
)
2 T A
100
³
T
+
B
*
(C
max
*
C
min
)
2 A
100
A
B
C
max
C
max tol
C
min
C
min tol
T
Average value of the feature
Band width
Feature maximum
Upper limit of the band width incl. tolerance
Feature minimum
Lower limit of the band width incl. tolerance
Tolerance