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.

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  • baumer_-_fpdk_10n5135_-_retroreflective_sensor__02691.jpg

    Baumer

    FPDK 10N5135

    Retroreflective Sensor, Miniature, Pulsed Red LED, 10-30VDC, 3.5m Actual Range Sb, 4m Nominal Range Sn, Potentiometer, 240°, NPN, Light/Dark Operate, 2m 4-Pin Cable, 27 x 10.4 x 16.3mm (HWD), Plastic ASA Housing, PMMA Optics, -20° to +65°C,

  • baumer_-_fpdk_10p5130_-_retroreflective_sensor_1__77752.jpg

    Baumer

    FPDK 10P5130

    Retroreflective Sensor, Miniature, Pulsed Red LED, 10-30VDC, 3.5m Actual Range Sb, 4m Nominal Range Sn, PNP, Light/Dark Operate, 2m 4-Pin Cable, 27 x 10.4 x 16.3mm (HWD), Plastic (ASA) Housing, PMMA Optics, -20° to +65°C, IP65

  • Available Now!
    takex_minig_diffuse_10__26012.jpg
    Available Now!

    Takex

    GS20SN

    Photoelectric, NPN, Diffuse Reflective, 300mm Rng, 12-24VDC, Light ON/Dark ON, 2m Cable, IP67

  • baumer-o300.sp-gw1b.72n_2__51404.jpg

    Baumer

    O500.GR-GW1T.72O

    Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed Red LED, 630 nm, Push-Pull, qTeach, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD

  • baumer_-_o500w.rp-gw1b.pvo_-_retroreflective_sensor__70276.jpg

    Baumer

    O500W.RP-GW1B.PVO

    Retroreflective Sensor, Polarization Filter, Washdown Design, 10-30VDC, 7.5 Actual Range Sb, 8m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, qTeach/Remote, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housing, PMMA

  • baumer-om30-photo-sensor_12__41574.jpg

    Baumer

    OM30-L0550.HV.TXN

    Photoelectric Distance Sensor, 50-550mm, 12-28VDC, RS485, Modbus RTU, Teach-In, Line Beam, Laser Class 2, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, -10 to +50°C Operating Temperature, 49 x 40.3 x 13.6mm (HWD)

    $1,725.60
    $1,725.60
  • Takex_F85RNP-J_Primary.jpg

    Takex

    F85RNP-J

    Fiber Optic Sensor, Dual Display, 12-24VDC, NPN/PNP Dual Output, Dark On/Light On, Four-Element (ALGainP) LED, M8 Connector, 0.065 - 4.000ms Response Time, IP40, Simple Teaching, Easy to Use, Replacement for F71RPN-J

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

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