Cognex expands Checker versatility and extends Checker sensor line

The Checker 4G7X can simultaneously check for the presence, size and position of features on a single part. Additionally it seamlessly integrates into the factory network, communicates with PLCs and features integrated colour lighting and filters to form the most powerful Checker vision sensor to date. Checker's pattern-based position tool supports 360º rotation to verify object location regardless of its position on the production line. Other position tools integrated into Checker can, for example, inspect cap height and skew, label position, fill level, web position, and component placement. Coloured lighting and filter options integrated into the Checker vision sensor help optimise image contrast in the inspection process and bring out more of the features the user wants to inspect whatever the factory conditions, resulting in more consistent and reliable inspections. For example, visible coloured illumination can improve results when inspecting for the presence of a safety seal with red print over a white cap. Using green light would make the print appear black while using red lighting would remove the red print from the image. In both cases, coloured light creates contrast where normal lighting cannot. Checker now offers integrated polarisation windows. Eliminating glare from objects with highly polished or reflective surfaces helps create the best possible images and a more consistent inspection result.