SICK Background Suppression Photoelectric Sensor, Rectangular Sensor, 20 mm → 350 mm, PNP, IP66, IP67, IP69K

SICK Series W9 Photoelectric Sensor, Background Suppression Detection Type, IP66, IP67, IP69K - WTB9-3P1161

This photoelectric sensor detects objects using background suppression and is intended for industrial automation tasks where selective sensing is required. It features a Compact rectangular form with a pin‑point LED light source and is designed for cable termination and hole mounting in machinery and control systems.

Features and Benefits:

• PNP output enables simple sourcing logic integration
  0.333 MS response time supports high‑speed detection
  30V DC maximum rating suits common control voltages
  IP66, IP67, IP69K protection allows wash‑down and dusty environments
  Vistal plastic housing resists impact and wear
  Operating range −40 to 60 °C ensures temperature resilience

Applications

• Suitable for conveyor object detection with background suppression
  Ideal for pick‑and‑place automation in food production areas
  Used for presence sensing in electrically noisy control cabinets
  Can be used for quality inspection where precise spot detection matters

How is the sensor connected electrically?

The device uses an integral cable termination and provides a PNP switched output compatible with sourcing input modules and PLCs.

What approvals does it carry for industrial deployment?

It has CE and cULus approvals indicating conformity with relevant European and North American safety standards.

What mounting method is recommended for stable alignment?

The sensor is supplied for hole mounting, allowing secure mechanical fixation and repeatable optical alignment.

How does the optical system affect detection performance?

The pin‑point LED produces a focused beam for accurate background suppression, improving detection of small or closely spaced targets.

Notes

For retro-reflective sensors a suitable reflector is required.
For PL80A, PL30A & C110 reflectors see stock nos. 265-2776, 265-2760 & 265-2748 respectively.