Datasheet

2 SICK 2009-04-22
W4-3 Selection table
WTB4-3 – Photoelectric
proximity sensor with
background suppression
Detection of objects, irrespective of
colour and consistency, up to the
predefined scanning distance
• Best background suppression
• Clearly visible light spot
WSE4-3 – Through-beam
photoelectric sensors
Fast and reliable alignment of the
sensors through brilliant light spot.
Laser-like light spot in the WTB4S-3 for:
n
Accurate positioning of the light beam on the object,
n
Reliable detection of small objects immediately in front
of a background,
n
Very good visibility of the light spot on the object.
Reliably solved with linear light spot featured in the WTB4-3:
n
Continuous detection of honeycomb structured objects,
n
Accurate positioning, irrespective of grooves or recesses in objects,
n
Reliable detection of falling objects.
Photoelectric proximity sensor WTB4S-3 with laser-like light spot:
detection of the inserted PC board, at a distance of 80 mm, with Pin-Point
accuracy. The reflecting background does not interfere with the sensor’s
performance if no tool carrier is clamped and the robot moves.
Photoelectric reflex sensor WLG4S-3 thinks and controls with:
automatic switching threshold adaptation – transparent objects with an
attenuation of > 8% are reliably detected.
n
Detection of transparent objects such as PET bottles, even with dust and
moisture present,
n
Implementation of the sensor close to the process, without expensive
mounting systems,
n
Clear visibility of the light spot aids the alignment of the sensor, from
nearly all conceivable positions.
Safe and easy mounting.
The mounting holes are
fitted with M3 threaded
metal bushes for added
strength.
WL4-3 and WLG4-3 – Photo-
electric reflex sensors
Quick and easy alignment using the
clearly visible light spot. Detection of
transparent objects with switching
threshold adaptation.
DB_W4_3_en.indd 2DB_W4_3_en.indd 2 07.05.2009 14:11:13 Uhr07.05.2009 14:11:13 Uhr