Photoelectric Sensors

pPhotoelectric 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./p ph2Through-beam Sensors/h2/p pThrough-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./p ph2Retro-reflective Sensors/h2/p pRetro-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./p ph2Diffuse Sensors/h2/p pDiffuse 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./p pA 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./p

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Description Price Sensor Style Detection Type Detection Range Output Type Electrical Connection Maximum AC Voltage Maximum DC Voltage Terminal Type Light Source IP Rating Maximum Current Interface Response Time Housing Material
RS Stock No. 219-2274
Mfr. Part No.EE-SX670
BrandOmron
TWD810.00
Each
units
Fork Through Beam (Fork) 5 mm NPN Connector - 24V - Infrared IP50 100 mA - - PBT
RS Stock No. 768-9464
Mfr. Part No.WL9-3P1162
BrandSick
TWD4,900.00
Each
units
Block Retroreflective 0 → 0.4 m PNP - - 30V - LED IP66, IP67, IP69K 100 mA - <0.5 ms Al2O3
RS Stock No. 265-9250
Mfr. Part No.T18SN6FF100Q
BrandBanner
TWD6,889.00
Each
units
Barrel Diffuse 100 mm NPN M12 Connector - 30V - LED IP69K 150 mA - - PBT, Plastic
RS Stock No. 822-4522
Mfr. Part No.E32-T11L
BrandOmron
TWD3,450.00
Each
units
Barrel Through Beam (Emitter and Receiver) 250 mm - Screw Clamp - - - - IP67 - - - Brass Nickel Plating (Sensing Head)
RS Stock No. 123-4132
Mfr. Part No.OADM 20U5440/S14C
BrandBaumer
TWD58,300.00
Each
units
Block Background Suppression 30 → 50 mm Analogue 5-Pin M12 Connector - 28V 5-Pin Connector Laser Light IP67 120 mA - <10 ms Die Cast Zinc
RS Stock No. 125-4550
Mfr. Part No.PM-Y45-P-C3
BrandPanasonic
TWD942.00
Each
units
Fork Through Beam (Fork) 6 mm PNP 3m Cable - 24V Cable Infrared IP64 50 (Source Current) mA - 20 (Received) μs, 80 (Interrupted) μs PBT (Enclosure), Polycarbonate (Display Section)
RS Stock No. 362-3909
Mfr. Part No.SME312LPC
BrandBanner
TWD9,438.00
Each
units
Block Retroreflective 1 m PNP Cable - 30V - LED IP67 150 mA - >=500 μs Reinforced Thermoplastic PET
RS Stock No. 542-5139
Mfr. Part No.FHDK 20P 6901 S35A
BrandBaumer
TWD5,071.00
Each
units
Block Diffuse 30 → 200 mm PNP 4-Pin M8 Connector - 30V - LED IP67 100 mA - <0.5 ms ABS, PBT
RS Stock No. 111-3702
Mfr. Part No.WL12GC-3P2472A71
BrandSick
TWD9,814.00
Each
units
Block Retroreflective 0 → 4 m PNP 4-Pin M12 Connector - 30V 4-Pin M12 Connector LED IP66, IP67 100 mA IO-Link 250 → 350 μs Die Cast Zinc
RS Stock No. 821-0044
Mfr. Part No.E3Z-G62-M3J
BrandOmron
TWD4,567.00
Each
units
Fork Through Beam (Fork) 25 mm NPN Pre-Wired Cable - 24V 4-Pin Connector Infrared IP64 25 mA - 1 ms ABS
RS Stock No. 902-7228
Mfr. Part No.BGL 220A-001-S49
BrandBALLUFF
TWD11,951.00
Each
units
Block Through Beam (Fork) - PNP 3-Pin M8 Connector - 30V Connector LED IP67 200 mA - - GD-Zn
RS Stock No. 807-4560
Mfr. Part No.EE-SH3
BrandOmron
TWD134.00
Each
units
Block Through Beam (Fork) - Phototransistor - 1.5V - PCB Pin - - 50 mA - 4 μs -
New
RS Stock No. 193-8351
Mfr. Part No.E3AS-F1500IPN M3
BrandOmron
TWD4,410.00
Each
units
Compact Reflective 50 → 1500 mm NPN M8 Connector - 30V M8 Connector Infrared IP67, IP67G, IP69K 30 mA IO-Link 150 ms PBT, PC
RS Stock No. 741-7610
Mfr. Part No.VTE18-4P8240V
BrandSick
TWD5,400.00
Each
units
Barrel Diffuse 900 mm PNP 4-Pin M12 Connector - 30V - Infrared IP67, IP68, IP69K 100 mA - <=1 ms Stainless Steel
New
RS Stock No. 190-4230
Mfr. Part No.T18-2VPFF75-2M
BrandBanner
TWD6,004.00
Each
units
Barrel Background Suppression (Fixed) 75 mm PNP Cable - 30V Cable Infrared IP67, IP68, IP69K <25 mA - 2 (OFF) ms, 2 (ON) ms PBT Polyester
RS Stock No. 847-9218
Mfr. Part No.QS18VN6LAF250Q5
BrandBanner
TWD11,554.00
Each
units
Block Diffuse 20 → 250 mm NPN 4-Pin Connector - 30V - Laser Light IP67 <15 mA - 700 μs ABS
RS Stock No. 124-0327
Mfr. Part No.OQT150-R100-2EP-IO-V31
TWD4,814.00
Each
units
Block Background Suppression 5 → 150 mm NPN/PNP 4-Pin M8 Connector - 30V 4-Pin Connector LED IP67, IP69, IP69K 100 mA IO-Link 2.3 ms PC
RS Stock No. 743-1329
Mfr. Part No.E3ZM-B86T
BrandOmron
TWD5,898.00
Each
units
Block Retroreflective 100 → 500 mm PNP 4-Pin M8 Connector - 30V - LED IP67, IP69K 100 mA - 1 ms Stainless Steel
New
RS Stock No. 190-4221
Mfr. Part No.T18-2VPRL-2M
BrandBanner
TWD3,646.00
Each
units
Barrel Opposed 25 m PNP Cable - 30V Cable Red LED IP67, IP68, IP69K <16 mA - 1 (OFF) ms, 1.5 (ON) ms PBT Polyester
RS Stock No. 902-7007
Mfr. Part No.BOS 5K-PS-RH12-S49
BrandBALLUFF
TWD3,657.00
Each
units
Block Diffuse 50 → 200 mm PNP 3-Pin M8 Connector - 30V Connector LED IP67 100 mA - 1 ms PBT, PC