MICRO-EPSILON colorSENSOR CFO Series, Instruction Manual

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Page 72
Operation
colorSENSOR CFO
Distance Model and Tolerance Value Settings
Distance model Classification / Sphere / Cylinder / Box
Tolerance value ∆E* Value 0.00...50.00
∆L* / ∆a*b* Value 0.00...50.00
∆L* / ∆a* / ∆b* Value 0.00...50.00
Color, space, tolerances. Every color is described by the color space coordinates and the permissible toler-
ance values. Up to three tolerance limits per color can be specified depending on the color space. If the cur-
rent reading is within these tolerances, the color is detected and signaled, see Chap.
5.4.4 , see Chap. 5.4.5.5 .
The model color space can be changed in the
Recognition Profile, see Chap. 5.7.5.2 .
If the sensor detects a color within the tolerance limits, it indicates the status on the left side of the window
with a depiction of the current color, see Chap.
5.7.4 .
No tolerance parameters are set for classification, because the currently measured color is always associated
with the color saved in the color table with the last distance to the measured color, see Chap.
5.4.5.5 .
When learning a new color group, the standard values are used for the distance model (8) and the tolerance
values (6) .
Distance model, cylinder
Half height (L) = 8
Radius (a/b) = 4
This can be adapted manually in the editing mode for the group between 0 ... 50. This can be adapted manu-
ally in the editing mode for the group between 0 ... 50. For the distance model it is possible to select between
Box
(∆L; ∆a; ∆b),
Cylinder
(∆L; ∆ab),
Sphere
(∆E) and
Classification, see Chap. 5.4.5.5 .
Depending on the distance model selected, it is possible to set the tolerance values to 1 .. 3. These values
describe the size of the tolerance space around the learned color.
Within a color group, the same distance model and the same tolerance values are used for all learned colors.
Fields with gray
background re-
quire a selection.
Value
Fields with dark
border require
entry of a value.