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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  • leuze-ht46ci_1__61183.jpg

    Leuze

    50127064

    HT46CI/PX-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.005-3m, LED, Infrared, M12, Plastic, 4-Pin, NCNR

  • leuze-ht46ci_2__19350.jpg

    Leuze

    50127063

    HT46CI/4X-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.005-3m, LED, Infrared, M12, Plastic, 4-Pin, NCNR

  • leuze-ht46cl__79632.jpg

    Leuze

    50127060

    HT46CL2/48-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.05-1.2m, Laser, Red, M12, Plastic, 4-Pin, NCNR

  • leuze-ht46ci_3__40971.jpg

    Leuze

    50127048

    HT46C/4P-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.005-3m, LED, Red, M12, Plastic, 4-Pin, NCNR

  • leuze_l46c__55479.jpg

    Leuze

    50127045

    LS46C.8-M12, Non-Cancellable / No Returns

    Photoelectric Sensor Transmitter, Throughbeam, 0-150m, LED, Red, Connector, M12, Plastic, 4-Pin, NCNR

  • leuze_ht3cl2__63824.jpg

    Leuze

    50129396

    HT3CL2/4P, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.015-0.55m, Laser, Red, Cable, 2,000mm, 4-Wire, NCNR

  • leuze-prk-prkl3c_5__83034.jpg

    Leuze

    50133739

    PRK3CL1.A3/4P-M8, Non-Cancellable / No Returns

    Polarized Retro-Reflective Photoelectric Sensor, 0-3m, Laser, Red, Connector, M8, Metal, 4-Pin, NCNR

  • leuze-ht46ci__10769.jpg

    Leuze

    50127067

    HT46CI/4W-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.005-3m, LED, Infrared, M12, Plastic, 4-Pin, NCNR

  • leuze-prk-prkl3c_7__80950.jpg

    Leuze

    50133698

    PRK3CL1.T3/4-M8.3, Non-Cancellable / No Returns

    Polarized Retro-Reflective Photoelectric Sensor, 0-0.5m, Laser, Red, Connector, M8, Metal, 3-Pin, NCNR

  • leuze-ht46c_cable__03229.jpg

    Leuze

    50127065

    HT46CI/PX-200-M12, Non-Cancellable / No Returns

    Diffuse Sensor with Background Suppression, 0.005-3m, LED, Infrared, M12, Plastic, 4-Pin, NCNR

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