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    Baumer Photoelectric Sensors

    What are Photoelectric Sensors?

    Photoelectric sensors determine the distance, absence, or presence of physical objects by emitting a field or beam of electromagnetic radiation. An object is detected by measuring alterations in the return signal, this is achieved as sensors have an Emitter for emitting light and a Receiver for receiving light. There are 3 main types of photoelectric sensors, through-beam, retro-reflective and diffuse, which vary slightly in the way they function.

    The basic function of each is to detect the presence or absence of objects or measure the distance to the object. You can learn more in our complete guide to photoelectric sensors.

    Types of Photoelectric Sensors:

    Through-beam Sensors

    Through 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 can detect almost any object, irrespective of colour or angular motion.

    Retro-reflective Sensors

    Retro-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.

    Diffuse Sensors

    Diffuse sensors (proximity sensor) are easier to install as only one device must 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 and recognised by the receiver, the receiver then sends an electrical signal to the output. A special type of diffused mode is background suppression which enables the user to precisely control the sensing range.

    Applications of Photoelectric Sensors

    Photoelectric Sensors can be used in various settings, some of which include:

    • Food Industry
    • Pharmaceutical Industry
    • Packaging Plants
    • Automotive Industry
    • Doors & Gates

    Browse the broad range of Photoelectric Sensors RS Components have to offer and order today for next day delivery.

    150 Products showing for Baumer Photoelectric Sensors

    Baumer
    Block
    Retroreflective
    0 → 4 m
    PUSH/PULL
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    Cable
    LED
    IP67
    30 mA
    -
    <490 μs
    -
    ASA, PMMA
    +60°C
    -25°C
    -
    O300
    Baumer
    Barrel
    Diffuse
    20 mm → 150 mm
    PNP
    3 Wire Cable 2 m
    -
    -
    -
    30V
    -
    -
    Infrared
    IP65
    200 mA
    -
    <500 μs
    -
    Brass Nickel Plated PC
    +55°C
    -25°C
    -
    FZAM 18P
    Baumer
    Block
    Diffuse
    20 mm → 350 mm
    PNP
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    -
    LED
    IP67
    100 mA
    -
    <1 ms
    -
    PA12
    +65°C
    -25°C
    -
    FHDK 14P
    Baumer
    Barrel
    Diffuse
    0 → 300 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67
    40 mA
    -
    <1 ms
    -
    Plastic
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Diffuse
    30 mm → 300 mm
    PUSH/PULL
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    Cable
    LED
    IP67
    45 mA
    -
    <1 ms
    -
    ASA, PMMA
    +60°C
    -25°C
    -
    O300
    Baumer
    Barrel
    Diffuse
    0 → 800 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67
    40 mA
    -
    <1 ms
    -
    Plastic
    +55°C
    -25°C
    -
    OR18
    Baumer
    Barrel
    Through Beam
    20 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67
    40 mA
    -
    <2 ms
    -
    Plastic
    +55°C
    -25°C
    -
    OR18
    Baumer
    Barrel
    Retroreflective
    4.5 m
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    LED
    IP67
    40 mA
    -
    <1 ms
    -
    Plastic
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Retroreflective
    5 mm
    PUSH/PULL
    M8 4 Pin Connector
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    O300
    Baumer
    Barrel
    Diffuse
    0 → 300 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67, IP69K
    40 mA
    -
    <1 ms
    -
    Stainless Steel
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Retroreflective
    0 → 8 m
    PUSH/PULL
    M12 3 Pin Connector
    -
    -
    -
    30V
    -
    Cable
    LED
    IP67
    40 mA
    -
    <490 μs
    -
    ASA, PMMA
    +60°C
    -25°C
    -
    O500
    Baumer
    Block
    Retroreflective
    7.2 m
    PNP
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    -
    LED
    IP67
    100 mA
    -
    <1 ms
    -
    PA12
    +65°C
    -25°C
    -
    FPDK 14P
    Baumer
    Barrel
    Diffuse
    0 → 800 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67, IP69K
    40 mA
    -
    <1 ms
    -
    Stainless Steel
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Through Beam
    10 m → 15 m
    PUSH/PULL
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    4 Pin Connector
    LED
    IP67
    40 mA
    -
    <490 μs
    -
    ASA, PMMA
    +60°C
    -25°C
    Threaded
    O300
    Baumer
    Barrel
    Through Beam
    20 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    Infrared
    IP67, IP69K
    40 mA
    -
    <2 ms
    -
    Stainless Steel
    +55°C
    -25°C
    -
    OR18
    Baumer
    Barrel
    Retroreflective
    4.5 m
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    LED
    IP67, IP69K
    40 mA
    -
    <1 ms
    -
    Stainless Steel
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Through Beam
    0 → 5 m
    Emitter
    M8 4 Pin Connector
    -
    -
    IO-LINK
    30V
    -
    M8 Connector
    Red LED
    IP67
    20 mA
    IO-Link
    -
    -
    Plastic
    +50°C
    -25°C
    Cable Mount
    O200
    Baumer
    Block
    Retroreflective
    8 mm
    PUSH/PULL
    M12 4 Pin Connector
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    O500
    Baumer
    Barrel
    Diffuse
    5 mm → 120 mm
    PNP
    M12 4 Pin Connector
    -
    -
    -
    30V
    -
    Threaded
    LED
    IP67
    40 mA
    -
    <1 ms
    -
    Plastic
    +55°C
    -25°C
    -
    OR18
    Baumer
    Block
    Retroreflective
    0 → 3 m
    PUSH/PULL
    M8 4 Pin Connector
    -
    -
    -
    30V
    -
    M8 Connector
    Red LED
    IP67
    50 mA
    -
    <500 μs
    -
    Plastic
    +50°C
    -25°C
    Cable Mount
    -
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