Capacitive sensors can detect solid, liquid or granular objects. With these sensors highly structured and non-dimensionally stable objects e.g. the fill levels of liquids or bulk materials can also be detected in direct contact with the medium or through a non-metallic container wall. They are also suitable for completeness inspections. Capacitive sensors also function reliably in an extremely dusty or dirty environment. An array of different designs and large operating ranges enable the use in practically all areas of application in industrial automation.

Advanced sensors

• Capacitive sensors offer contactless, shape-independent and wear-free operation.
• They are also resistant to interference and contamination, e.g., dust in the air.
• As a result, they have high interference rejection, making them ideal for use in harsh industrial environments.
• The capacitive sensors in the Advanced category are optionally available as IO-Link models with teach button for flexible configuration of the switching distance and for permanent process optimization.
• Moreover, versions with Teflon housing (PTFE) can also be used in situations with high chemical stress, such as in the semiconductor industry.