Colour contrast sensor

The O5 Series contrast sensor offers a variety of contrast sensing solutions for the packaging, assembly, material handling and printing industries. Applications include printed registration marks on a roll of paper or labels; continuous form markings; printed colour bars on packages; reference marks for printing and cutting, and confirming the presence of bar codes, date codes and data matrix symbols.

One of the challenges in detecting registration marks or printed colour bars is determining the difference between the target and background — especially when the colours are similar. The O5 sensor features an RGB visible light transmission LED that processes through red, green and blue to identify the best colour for contrast between the target and the background. The sensor also offers an alternative to more expensive vision and identification systems designed for contrast applications.

The Micro DC sensor features a 10,000 Hz switching frequency for high-speed applications and auto-detection of PNP/NPN configuration. A simple ‘teach mode’ set-up quickly establishes parameters of an application. The sensing range is 18-22 mm with a spot diameter at maximum range of 1.5 x 5 mm.

For mounting versatility, the sensor’s connector rotates 270° for alignment in multiple directions. A wide variety of mounting brackets are available for installation flexibility.