KT8L-P3656 Contrast Sensors – SICK Sensor

$ 1,035.25

The SICK KT8L-P3656 (1041262) is a high-performance laser contrast sensor featuring a 150mm sensing range and PNP output. Ideal for precise print mark detection.

SKU SICK-1041262 Category

Product Overview

  • Model Name: KT8L-P3656
  • Part Number: 1041262
  • Sensing Distance: 150 mm
  • Light Source: Laser, red (655 nm), Class 2
  • Light Spot Size: Ø 0.3 mm (at 150 mm distance)
  • Output Type: PNP (Light/dark switching)
  • Connection: M12 male connector, 5-pin
  • Housing Material: Durable metal (Zinc die-cast)

 

Product Description

The SICK KT8L-P3656 (1041262) is a premium KT8 series laser contrast sensor designed for demanding industrial automation tasks that require extreme precision at long ranges. Utilizing a Class 2 red laser light source, it generates a highly concentrated 0.3 mm circular light spot, allowing it to detect the smallest print marks and contrast differences even from a distance of 150 mm.

This sensor is engineered for high-speed performance, featuring a rapid response time of 30 µs and a switching frequency of up to 17 kHz. Its robust metal housing and IP67 rating ensure reliable operation in harsh environments. The device simplifies setup through versatile teach-in modes, including static 2-point and dynamic (min/max) teach-in via a dedicated button or control wire. The integrated bargraph display provides real-time feedback on signal strength, facilitating easy alignment and process monitoring. By combining laser accuracy with long-range sensing capabilities, the KT8L-P3656 offers a superior solution for detecting subtle contrast variations on varied materials and glossy surfaces.

 

Key Performance Features

  • Laser Precision: Class 2 laser technology provides a tiny, well-defined light spot for pinpoint accuracy on small marks.
  • Extended Range: Exceptional sensing distance of 150 mm, significantly higher than standard contrast sensors.
  • High-Speed Processing: 17 kHz switching frequency ensures reliability on fast-moving production lines.
  • Intuitive Feedback: Features a 10-segment bargraph display to visualize contrast quality and signal strength.
  • Flexible Setup: Static and dynamic teach-in options allow for quick adaptation to different material types and colors.
  • Automatic Adjustment: Capable of fine-tuning thresholds automatically to compensate for changing ambient conditions.

 

Ideal Applications

  • Packaging Industry: Detecting small registration or print marks on high-speed packaging foils.
  • Printing Industry: Monitoring web positioning and alignment of intricate graphic designs.
  • Electronics Manufacturing: Accurate positioning of small components or PCB markings.
  • Food and Beverage: Sorting and detecting labels on glossy or reflective containers.
  • Logistics: Reliable detection of marks on parcels or pallets from a greater distance to avoid mechanical interference.

 

Features

Dimensions (W x H x D) 30.4 mm x 53 mm x 80 mm
Sensing distance 150 mm 1)
Housing design (light emission) Large
Light source Laser, red 2)
Laser class II (EN 60825-1:2014), IEC 60825-1:2014
Wave length 655 nm
Light emission Long side of housing
Light spot size Ø 0.3 mm 3)
Light spot direction Round
Operating distance 30 mm … 800 mm 4)
Adjustment Teach-in button
Teach-in mode Static 2-point teach-in

Dynamic teach-in (min/max)

Function Automatic drift correction
  • 1) From front edge of lens.
  • 2) Average service life: 50,000 h at TU = +25 °C.
  • 3) At focal point = sensing distance 150 mm.
  • 4) With respect to black-white contrast 6 % / 90 %.

 

Mechanics/electronics

Supply voltage 10 V DC … 30 V DC 1)
Ripple ≤ 5 Vpp 2)
Current consumption < 80 mA 3)
Switching frequency 17 kHz 4)
Response time 30 µs 5)
Jitter < 15 µs
Switching output PNP
Switching output (voltage) PNP: HIGH = UV ≤ 2 V / LOW approx. 0 V
Analog output 0.3 mA … 20 mA
Output current Imax. 100 mA
Input, teach-in (ET) PNP

Teach: U = 10 V … < UV

Run: U < 2 V

Retention time (ET) 25 ms, non-volatile memory
Time delay 20 ms, adjustable
Connection type Male connector M12, 5-pin
Protection class II 6)
Circuit protection UV connections, reverse polarity protected

Output Q short-circuit protected

Interference pulse suppression

Enclosure rating IP67
Weight + 400 g
Housing material Metal, zinc diecast
Optics material Glass
  • 1) Limit values when operated in short-circuit protected network: max. 8 A.
  • 2) May not exceed or fall below Uv tolerances.
  • 3) Without load.
  • 4) With light/dark ratio 1:1.
  • 5) Signal transit time with resistive load.
  • 6) Reference voltage DC 50 V.
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