Photoelectric Sensors

Photoelectric sensors detect and measure physical objects or quantities by emitting a field or beam of electromagnetic radiation, an object is detected by measuring alterations in the return signal. There are 3 main types of photoelectric sensors which provide reliable detection, these are through-beam, retro-reflective and diffuse. The basic function of each is to detect the presence or absence of objects or measure the distance to the object.

Through-beam Sensors

Through-beam sensors (aka thru-beam) rely on two separate housings, one for the transmitter and one for the receiver, with the transmitter providing a continuous beam of light to the receiver. Each time an object passes through the beam this interrupts the signal between the transmitter and receiver, which in turn causes the receiver to send an electrical signal to the output. Through-beam sensors are suited to long-distance sensing and are capable of detecting almost any object, irrespective of colour or angular motion.

Retro-reflective Sensors

Retro-reflective photoelectric sensors (retroreflective) have both the transmitter and receiver contained within the same housing but require a reflector opposite to the sensor. The reflector bounces the light beam back to the transmitter until an object breaks the beam. Objects which are highly reflective such as aluminium require sensors with polarising filters. The filter allows the sensor to acknowledge that the reflected light from reflecting materials is different from the reflector.

Diffuse Sensors

Diffuse sensors (proximity sensor) are easier to install as only one device has to be mounted. This is because the transmitter and receiver are contained within one housing. Diffuse sensors use the reflection from the target object within a predetermined sensing range. The transmitter sends out a continuous beam of light, once this hits the target it is diffused in all directions, a part of this light is reflected back and recognised by the receiver, the receiver then sends an electrical signal to the output.

A special type of diffused mode is background suppression which enables the user to precisely control the sensing range. A diffuse mode sensor with background suppression is less sensitive to the target colour. They can also use a visible red light or infrared light sources.


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Omschrijving Prijs Sensor Style Detection Type Detection Range Output Type Electrical Connection Maximum AC Voltage Communication Protocol Maximum DC Voltage Optical Technology Terminal Type Light Source IP Rating Maximum Current Interface
RS-stocknr. 228-992
FabrikantnummerGLV18-8-200/73/120
FabrikantPepperl + Fuchs
€ 53,61
Each
Aantal stuks
Barrel Diffuse 200 mm PNP 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 404-039
FabrikantnummerGLV18-8-200-S/73/120
FabrikantPepperl + Fuchs
€ 54,85
Each
Aantal stuks
Barrel Diffuse 200 mm PNP 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 891-9472
FabrikantnummerGLV18-8-450/25/102/115
FabrikantPepperl + Fuchs
€ 54,85
Each
Aantal stuks
Block Diffuse 0 → 450 mm NPN Cable - - 30V - - LED IP67 20 mA -
RS-stocknr. 229-119
FabrikantnummerGLV18-55/115/120
FabrikantPepperl + Fuchs
€ 53,72
Each
Aantal stuks
Barrel Retroreflective 4 m PNP 4-Wire Cable 2m - - 30V - - LED IP67 100 mA -
RS-stocknr. 510-3255
FabrikantnummerRLK29-55/25/116-SET
FabrikantPepperl + Fuchs
€ 108,38
Each
Aantal stuks
Block Retroreflective 12 m Relay 6-Terminal Screw 230V - 230V - - LED IP67 2 A -
RS-stocknr. 403-995
FabrikantnummerGLV18-8-400-S/73/120
FabrikantPepperl + Fuchs
€ 54,85
Each
Aantal stuks
Barrel Diffuse 400 mm PNP 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 229-018
FabrikantnummerGLV18-8-200/115/120
FabrikantPepperl + Fuchs
€ 53,61
Each
Aantal stuks
Barrel Diffuse 200 mm PNP 4-Wire Cable 2m - - 30V - - LED IP67 100 mA -
RS-stocknr. 714-1625
FabrikantnummerML100-55/95/103
FabrikantPepperl + Fuchs
€ 76,35
Each
Aantal stuks
Block Retroreflective 5 m PNP 4-Pin M8 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 124-0333
FabrikantnummerOBR7500-R101-2EP-IO-V31
FabrikantPepperl + Fuchs
€ 72,46
Each
Aantal stuks
Block Retroreflective 0 → 7.5 m NPN/PNP 4-Pin M8 Connector - IO-LINK 30V - 4-Pin Connector LED IP67, IP69, IP69K 100 mA IO-Link
RS-stocknr. 124-0332
FabrikantnummerOBR12M-R101-2EP-IO-V31-L
FabrikantPepperl + Fuchs
€ 117,04
Each
Aantal stuks
Block Retroreflective 0 → 12 m NPN/PNP 4-Pin M8 Connector - IO-LINK 30V - 4-Pin Connector Laser Light IP67, IP69, IP69K 100 mA IO-Link
RS-stocknr. 229-096
FabrikantnummerGLV18-55/73/120
FabrikantPepperl + Fuchs
€ 53,72
Each
Aantal stuks
Barrel Retroreflective 4 m PNP 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 891-9482
FabrikantnummerML4.2-8-H-40-RT/40b/95/110
FabrikantPepperl + Fuchs
€ 173,00
Each
Aantal stuks
Block Background Suppression 10 → 50 mm Push Pull 4-Pin M8 Connector - - 30V - M8 Connector LED IP67, IP69K 25 mA -
RS-stocknr. 229-006
FabrikantnummerGLV18-8-450/73/120
FabrikantPepperl + Fuchs
€ 53,61
Each
Aantal stuks
Barrel Diffuse 450 mm PNP 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 229-080
FabrikantnummerGLV18-6/115/120
FabrikantPepperl + Fuchs
€ 52,28
Each
Aantal stuks
Barrel Retroreflective 6.5 m PNP 4-Wire Cable 2m - - 30V - - LED IP67 100 mA -
RS-stocknr. 403-989
FabrikantnummerGLV18-8-400-S/25/102/159
FabrikantPepperl + Fuchs
€ 56,28
Each
Aantal stuks
Barrel Diffuse 400 mm NPN 3-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 450-2948
FabrikantnummerOBT200-18GM60-E5
FabrikantPepperl + Fuchs
€ 87,39
Each
Aantal stuks
Barrel Diffuse 200 mm PNP 4-Wire Cable 2m - - 30V - - Infrared IP67 100 mA -
RS-stocknr. 817-1557
FabrikantnummerRL31-8-1200-RT/73c/136
FabrikantPepperl + Fuchs
€ 70,28
Each
Aantal stuks
Block Diffuse 1.2 m Push Pull 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -
RS-stocknr. 447-121
FabrikantnummerGL121-RT/32/40A/98A
FabrikantPepperl + Fuchs
€ 254,80
Each
Aantal stuks
Fork Through Beam (Fork) 120 mm PNP 3-Pin M8 Connector - - 30V - - LED IP67 200 mA -
RS-stocknr. 891-9479
FabrikantnummerDK20-9,5/110/124
FabrikantPepperl + Fuchs
€ 286,79
Each
Aantal stuks
Block Diffuse 9.5 mm NPN/PNP 5-Pin M12 Connector - - 30V - M12 Connector LED IP67 70 mA -
RS-stocknr. 784-0007
FabrikantnummerMLV41-8-H-350-RT/59/92/136
FabrikantPepperl + Fuchs
€ 183,91
Each
Aantal stuks
Block Background Suppression 10 → 350 mm Push Pull 4-Pin M12 Connector - - 30V - - LED IP67 100 mA -