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_04G6112_KS35A_Primary.png

    Baumer

    FHDK 04G6112/KS35A

    Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Dark 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

  • baumer_-_o500w.gp_-_diffuse_sensor_6__77059.jpg

    Baumer

    O500W.SP-GW1J.PVO/H002_B005

    SmartReflect Light Barrier, Washdown Design, Standard Object Detection, 10-30VDC, 60-1200mm Background Position Sde, Pulse PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housi

  • Baumer_FHDK_04G6112_KS35A_Primary.png

    Baumer

    FHDK 04G6112

    Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Dark Operate, Push-Pull, <50mA, 2m 3-Pin Cable, 44.8 x 4 x 6.2mm (HWD), Plastic (ASA) Housing, PMMA Front (Optics), -10 to +50°C, IP65

  • baumer_-_o500h.gp_-_diffuse_sensor_1__04424.jpg

    Baumer

    O500H.RP-GW1B.PVCV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, 10-30VDC, 7.5 Actual Range Sb, 8m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In: Remote, Light/Dark Operate, 2m 4-Pin Cable, Stainless Steel Housing, PMMA Op

  • baumer_-_o500w.gp_-_diffuse_sensor_5__51992.jpg

    Baumer

    O500W.SP-GW1J.PVO/H002

    SmartReflect Light Barrier, Washdown Design, Standard Object Detection, 10-30VDC, 60-600mm Background Position Sde, Pulse PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housin

  • Baumer_FHDK_04G6112_KS35A_Primary.png

    Baumer

    FHDK 04G6111/KS35A

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

  • baumer_-_o500h.gp_-_diffuse_sensor_1_3__90927.jpg

    Baumer

    O500H.RP.T-GW1J.PVOV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, Transparent Object Detection, 10-30VDC, 5.5 Actual Range Sb, 6m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 Flylead Co

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_12__41238.jpg

    Baumer

    O500.GR-GW1T.72CU

    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, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -2

  • baumer_-_o500w.gp_-_diffuse_sensor_4__36936.jpg

    Baumer

    O500W.SP-GW1J.PVO

    SmartReflect Light Barrier, Washdown Design, Standard Object Detection,10-30VDC, 60-600mm Background Position Sde, Pulse PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housing

  • baumer_-_o500h.gp_-_diffuse_sensor_2__67440.jpg

    Baumer

    O500H.RP.T-GW1J.PVCV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, Transparent Object Detection, 10-30VDC, 5.5 Actual Range Sb, 6m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, 2m 4-Pin Cable

  • baumer_-_o500w.gp_-_diffuse_sensor_2__48908.jpg

    Baumer

    O500W.RP-GW1B.PVO/H002

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

  • baumer_-_fhdk_10g512_-_diffuse_sensor_-_connector_1__95549.jpg

    Baumer

    FHDK 10G5122/S35A

    Miniature Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 80mm ±8mm Range Tw, 10-30VDC, Light/Dark Operate, Push-Pull, <50mA, M8 4-Pin Connector, 27 x 10.4 x 14.7mm (HWD), Plastic (ASA) Housing, PMMA Optics, -25 to +65°C, 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