SICK OD5000-C15 Series, Operating Instructions Manual

Page: 36 / 94

Table 10: Adjustments for the measurement type
Setting Meaning
Distance Measures the distance between the zero point and a defined peak
(object surface)
Thickness Measures the distance between two peaks, e.g., a transparent
object with several reflective surfaces (e.g., layers of glass).
When selecting, consider which thickness is to be measured.
Table 11: Minimum thickness of transparent material (thickness measurement)
Type OD5000-C15xxx OD5000-C30xxx OD5000-C85xxx OD5000-
C150xxx
Standard thick‐
ness measure‐
ment ≥ 0.18 mm ≥ 0.6 mm ≥ 2.0 mm Not supported
Optimized thin
layer thickness
measurement
1
≥ 0.06 mm ≥ 0.18 mm ≥ 0.5 mm Not supported
1 The linearity error increases by a factor of 5 ... 10.
Depending on the selected measurement type, it is possible to determine on which
peak or between which peaks the measurement is to be taken.
With the distance measurement type, up to eight peaks can be selected. Peak 1 (P1) is
activated by default.
With the thickness measurement type (for measuring a transparent object), a selection
must also be made of the peaks between which the measurement is to be taken. If the
selected peak does not exist then a measurement is not taken. If the same peak is
selected twice in this case, 0 is output as the measured value.
NOTE
The thickness can only be measured with the specular reflection mounting. This mode is
not available for all devices in the OD5000 series, see "Setting diffuse or specular
reflection", page 35 .
1
2
1
4
2, 3
1
3
2
3
4
1
2
3 4
Figure 38: Thickness measurement of reflective surfaces
1
First glass pane
2
Second glass pane
3
Transparent objects very close to one another
4
Incorrectly detected single peak
NOTE
If two overlapping glass panes are measured so that the rear side of one pane is very
close to the front side of the other pane, the device cannot differentiate between the
two surfaces. The device then detects both surfaces as a single reflective surface.
Monitor the light wave shape to check how well the device detects reflective surfaces
(
see "Checking the light distribution curve and peaks", page 38 ).
7
OPERATION
36 O P E R A T I N G I N S T R U C T I O N S | OD5000 8021391/17Y6/2020-05-11 | SICK
Subject to change without notice