Precision in every color: The P1PW contrast sensors from wenglor

When it comes to reliably detecting the smallest differences in contrast, the P1PW contrast sensors from the wenglor sensoric group are a powerful solution. They detect subtle differences in brightness and color on a wide variety of materials – from color-intensive to pale markings – and work precisely and stably even in fast processes.

With three integrated operating modes, automatic light adjustment and easy handling, the P1PW sensors combine everything that modern automation needs today: Flexibility, reliability and precision.

A contrast sensor detects a contrast marking on a brown film.
Contrast sensors detect the smallest differences in contrast on a wide variety of surfaces and materials.

Flexible application thanks to three operating modes

The P1PW series offers three teach-in modes in one device, making it particularly versatile – as a print mark reader, contrast sensor or color sensor.

The emitted white light and the differentiated evaluation of the reflected light components in red, green and blue enable the reliable detection of a wide variety of markings – even on shiny, colored or transparent materials.

  • Print mark mode: uses the greatest contrast difference of a color channel to distinguish marks from the background.
  • Contrast mode: evaluates the average light intensity of all color channels and detects the finest differences in brightness.
  • Color mode: uses the signal values of all color channels to reliably detect even subtle color deviations.

Thanks to the automatic adjustment of the light intensity during teach-in, the sensors work reliably – regardless of material, color or surface.

Stable even at high speeds

The P1PW contrast sensors are ideal for dynamic processes.
With a switching frequency of 50 kHz and low jitter, they detect markings and contrast differences reliably and precisely, even at high process speeds.

The integrated step detection ensures that the sensors automatically adapt to changing conditions – without the need for parameterization during the process.

The homogeneous, rectangular light spot also enables reliable detection of even the smallest objects, while the automatic light adjustment ensures consistently high detection quality.

Intuitive operation and smart details

In addition to high precision, the P1PW sensors are also particularly easy to use:

  • Teach-in at the touch of a button: uncomplicated initial start-up without additional software.
  • LED bar display: shows the quality of the teach-in and the process stability in real time.
  • QR code on the housing: direct access to technical information and product documentation.
  • Integrated nuts and rotatable plug (270°): for flexible, flush and convenient installation.

This means that the sensors can be quickly and intuitively integrated into existing systems – without long set-up times.

Highlights at a glance

  • Three integrated teach-in modes: print marks, contrast and color mode
  • LED bar display for configuration and contrast value display
  • Integrated jump detection for dynamic processes
  • High switching frequency of 50 kHz
  • Automatic adjustment of light intensity
  • Homogeneous, rectangular light spot for detecting the smallest objects
  • Integrated IO-Link interface for simple communication and parameterization

Conclusion: Precision, flexibility and process reliability

The P1PW contrast sensors offer a powerful combination of precision, speed and ease of use – ideal for applications where the smallest differences in contrast need to be reliably detected.

Whether for labeling, in the packaging industry or in highly dynamic manufacturing processes: With their versatile functions and integrated IO-Link interface, the sensors are a reliable solution for maximum process reliability and efficiency.

wenglor P1PW – when precision makes the difference.

Author

Picture of Max Mustermann

Max Mustermann

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