Photoelectric Sensors

Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.

Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt

 

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    Baumer

    FHDK 04G6102/KS35A

    10162787

    Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Light Operate, Push-Pull, 50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50°C, IP65

  • Available Now!
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    Baumer

    FHDK 07P6901/KS35A

    10149512

    Subminiature Diffuse Sensor, Background Suppression, Pulsed Red LED, 10-60mm Range Tw, 10-30VDC, Light/Dark Operate, PNP, <100mA, Flylead Connector M8 4-Pin 200mm Length, 16.2 x 8 x 10.8mm (HWD), Plastic Housing, PMMA Optics, -20 to +50°C,

  • Available Now!
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    Baumer

    FPDK 14P5101/S35A

    11001138

    Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 7m Actual Range Sb, 7.2m Nominal Range Sn, PNP, Light/Dark Operate, M8 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic (ASA, MABS) Housing, PMMA Optics, -25° to +65°C, IP67

  • Available Now!
    baumer-fhdm_12p5001-s35a__37907.jpg
    Available Now!

    Baumer

    FHDM 12P5001/S35A

    10234167

    Diffuse Sensor With Background Suppression-Miniature, 15...300 mm Sensing Distance, Pulsed Red LED, PNP, Mechanical (5 Turn), M8 Connector (4 Pin), IP67

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    IDEC

    SA2E-TN3-2M

    Replacement for SA1E-TN1, SA1E-TN1-2M, SA1E-TN1-5M, SA1E-TN2, SA1E-TN2-2M and SA1E-TN2-5M

    Miniature Photoelectric Thru-Beam Sensor, 20m Sensing Range, NPN, Light On/Dark On (Selectable), 2m Cable, IP67, 10.8 x 19.5 x 31.5mm (WDH) Excluding LEDs and Controls

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    Available Now!

    Baumer

    FHDM 12P5001

    10234166

    Diffuse Sensor With Background Suppression-Miniature, 15...300 mm Sensing Distance, Pulsed Red LED, PNP, Mechanical (5 Turn), 2 Meter Cable Length (4 Pin), IP67

  • Available Now!
    baumer-fhdm12p__21931.jpg
    Available Now!

    Baumer

    FHDM 12N5001/S35A

    10234168

    Photoelectric Diffuse Sensor with Background Suppression, 10-30VDC, 15-300mm Sensing Range, Light/Dark Operate NPN, -25 to +65°C, M8 4-pin Connector, IP67

Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.

Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt

 

How Does a Photoelectric Sensor Work?

Generally a photoelectric sensor consists of the following:

  • Transmitter - emits the light beam
  • Receiver - detects the light beam and converts it to an electrical signal

Photoelectric sensors detect changes in the light beam caused by the presence/absence, movement or properties of an object.

Types of Photoelectric Sensors:

  • Through-Beam (Thru-Beam)
    • Transmitter and receiver are two separate units that are directly opposite of each other. The sensor detects when an objects breaks the light beam
    • Great for long distance detection
    • Ideal for conveyors, counting or monitoring door openings
  • Retroreflective (Reflective Mode)
    • Transmitter and receiver are in one housing; light beam is reflected back by a reflector. Detection is triggered when an object breaks the beam.
    • Medium range detection and easier to install than a through beam
    • Ideal for package detection and pallet positioning
  • Diffuse (Proximity Mode)
    • The transmitter and receiver in one housing; the sensor detects light reflected directly off the target object (no reflector needed)
    • Best for short range applications
    • Ideal for detecting objects on assembly lines, verifying presence or checking fill level
  • Specialized Types:

Categories Related to Photoelectric Sensors:

  • Stack lights - signal towers visually communicate the data or alerts that the photoelectric sensors are generating
  • Smart relays - photoelectric sensors provide input signals which can process the data and control outputs
  • Pushbuttons and estops - if your sensor detects a fault, an operator can use a pushbutton to reset the system
  • HMIs - HMIs can dispay the data from the photoelectric sensor which allows you to monitor processes