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IDEC
SA1E-XP1C
Photoelectric, PNP, Light ON, Transparent, up to 2m sensing, M8 connector (Needs Cable), NCNR
$122.09$122.09 -
$1,115.29$1,115.29 -
Baumer
FZCK 07P6901
Diffuse Sensor With Intensity Difference- Subminiature, 20...150 mm Sensing Distance, NPN, Teach-in Adjustment, 2 Meter Long Rear Side Cable, IP 65
$354.49$354.49 -
Pepperl+Fuchs
132616
Print Mark Contrast Sensor, Diffuse Mode, 10-30VDC, 11mm ± 2 mm Range, Teach-In, Light/Dark On, 2 Push-Pull O/P, M12 5 Pin, Nickel Plated Die-Cast Zinc, Plastic Optics, -20 to 60°C Ambient Temp., 41.5 x 49 x 15mm (WHD), IP67
$501.76$501.76 -
$116.53$116.53 -
$890.29$890.29 -
Baumer
FVDK 10P5101
Fiber Optic Sensor, Pulsed Red LED, PNP, Light/Dark Operate, Potentiometer, 270°, 2m Cable, 27 x 14 10.4mm (HWD), Plastic ASA Housing, -25 to +55°C, IP40
$288.89$288.89 -
Baumer
FZCK 07N6901
Diffuse Sensor With Intensity Difference-Subminiature, 20...150 mm Sensing Distance, Pulsed Red LED, NPN, Teach-in Adjustment, 2 Meter Long Rear Side Cable, IP 65
$354.49$354.49 -
Pepperl+Fuchs
297897
Distance Photoelectric Sensor, Analog Output, IOLink, Pulse Ranging Technology (PRT), Laser
$650.72$650.72 -
$109.89$109.89 -
$560.80$560.80 -
Baumer
OZDM 16P1901
Diffuse Contrast Sensor, < 250 mm Sensing Distance, Pulsed Red Laser Diode, PNP/Analog 4...20 mA, 14 Turn Potentiometer, 2 Meter Cable Length (4 Pin)0, IP67
$1,410.49$1,410.49
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:
- Background Suppression: Can ignore objects beyond a set distance, focuses close range
- Color or Contrast Sensors: Detects specific colors or contrast differences
- Distance Measuring Sensors: Mesaure the distance to an object
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