Photoelectric sensors for general applications

Through-beam sensors

The system consists of two separate components: a transmitter and a receiver. The transmitter emits pulsed light in the infrared or visible red wavelength range. The receiver detects the light beam and immediately converts a beam interruption caused by an object in the sensing zone into a switched signal.
Through-beam sensors
transmitter Receiver
Type
M8 M12 M18 rectangular
Material
metal plastics
Range
up to 4 m up to 6 m up to 15 m up to 60 m up to 80 m
Connection
cable cable with connector connector terminals
System
hazardous areas (ATEX) function check output connection to amplifier food industry mounting and handling technology
 

Retro-reflective sensors

For a retro-reflective sensor the transmitter and receiver are incorporated into one housing. By means of a reflector the transmitted light is returned to the receiver. An object in the beam path interrupts the beam and triggers a switching operation. Retro-reflective sensors without polarisation filter operate in the infrared area, systems with polarisation filter with visible red light.
Type
M8 M12 M18 M30 rectangular
Material
metal plastics
Range
up to 2 m up to 4 m up to 10 m up to 18 m up to 22 m
Connection
cable cable with connector connector terminals
System
hazardous areas (ATEX) function check output connection to amplifier food industry mounting and handling technology polarisation filter glass and film detection
 

Diffuse reflection sensors

A diffuse reflection sensor is used for the direct detection of objects. As with a retro-reflective sensor transmitter and receiver are incorporated into one housing. The transmitter emits light which is reflected by the object to be detected and seen by the receiver. This system does not evaluate the interruption of the light beam but the reflected light of an object. Important: The switching function referred to light-on / dark-on mode is therefore reversed. The transmitted light of this system is also pulsed.
Type
M12 M18 M30 rectangular
Material
metal plastics
Range
up to 150 mm up to 400 mm up to 800 mm up to 1500 mm up to 3500 mm
Connection
cable cable with connector connector terminals
System
hazardous areas (ATEX) food industry mounting and handling technology short ranges background suppression
 

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System description - Photoelectric sensors for general applications