SICK WTM10L - Page 53

y
x
Example:
Safe suppression of the background
White background (90 %)
Black object (6 % remission)
Set sensing range x = 300 mm
Needed minimum distance to white
background y = 10 mm
0
10
(0.39)
20
(0.79)
0
Minimum distance in mm (y) between the set sensing
range and white background (90 % remission)
Distance in mm (inch)
Recommended sensing range for
the best performance
30
(1.18)
y
x
450
(17.72)
350
(13.78)
250
(9.84)
150
(5.91)
50
(1.97)
2
6%/6%
6%/90%
33
6%/6%
6%/90%
6%/6%
6%/90%
1
Figure 12: Characteristic curve, WTM10L-xxxxx2
0
Distance in mm (inch)
1
2
3
C/D
A
B
Recommended sensing range for
the best performance
450
(17.72)
350
(13.78)
250
(9.84)
150
(5.91)
50
(1.97)
25
25
400
300
25
220
Figure 13: WTM10L-xxxxx2
1
Black object, 6% remission factor, Mode 1: Speed
2
Black object, 6% remission factor, Mode 2: Standard
3
Black object, 6% remission factor, Mode 3: Precision
A Sensing range min. in mm
B Sensing range max. in mm
C Field of view
D Adjustable switching threshold for background suppression
Blue Recommended sensing range for the best performance
Check the function as described in see table 4, page 49. If the digital output fails to
behave as described in see table 4, page 49, check the application conditions.
WTM10 with functional principle FGS
The photoelectric proximity sensor requires a background as a reference. The remission
factor and position of the background should remain as uniform as possible. The
maximum distance (x) between the photoelectric proximity sensor and background as
well as the minimum object height (y) must be upheld. As a rule, the FGS mode is used
to detect very flat objects on a conveyor belt.
OPERATING INSTRUCTIONS
9382969/2024-02-23 | SICK O P E R A T I N G I N S T R U C T I O N S | WTM10L
53
Subject to change without notice
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