SICK WTM4S - Page 48

6.3 Check the application conditions
WTM4S are photoelectric proximity sensors with background and foreground suppres‐
sion. Depending on the remission factor of the object to be detected, and perhaps the
background behind it, a minimum distance (y) between the set sensing range (x) and
the background is to be maintained.
Background suppression: MultiMode 1, 3, 4, 5, 6
Adjust the sensing range and distance to the object and background as well as the
remission capability of the object according to the corresponding diagram (x = sensing
range, y = minimum distance between set sensing range and background (white, 90%))
Remission factor: 6% = black 1, 18% = gray 2, 90% = white 3 (relative to standard
white as per DIN5033). We recommend making the adjustments using an object with a
low remission factor.
Minimum distance between set sensing range and background (black 6% / white
90%) :
•
5mm, at 150mm distance (MultiMode 1, 3, 4, 5)
•
8mm, at 250mm distance (MultiMode 1 + 6)
MultiMode 1, 3, 4, 5:
OPERATING INSTRUCTIONS
48
O P E R A T I N G I N S T R U C T I O N S | WTM4S 8028212/2023/10/20 | SICK
Subject to change without notice
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