Pepperl+Fuchs GmbH
Lilienthalstrasse 200
68307 Mannheim
Germany




Sensors for the food industry: The challenge of Perfection - Pepperl+Fuchs GmbH

Pepperl+Fuchs now manufactures sensors for the food industry that more than satisfy the demanding requirements for cleanliness and hygiene in this sector – in three different technologies. Ultrasonic, inductive and optical sensors. All machines that process food have areas that pose different levels of contamination risk: the product-contact area, the splash area and the product-free area. Pepperl+Fuchs has categorized these areas into zones and assigned sensor properties to each zone. Zone A, B and C. Zone A requires the highest standards of hygiene and so Pepperl+Fuchs has developed the UMC3000 ultrasonic sensor, which is the first proximity sensor that can detect objects directly. The UMC3000 is manufactured entirely from FDA approved materials and designed according to EHEDG guidelines. IP69K protection for extreme thermal shocks is essential in harsh applications. The MLE76 optical sensor is chemically resistant to cleaning agents and offers IP69K protection in spite of the tough ambient conditions in the food industry. The gap-free enclosure and extremely smooth stainless steel surface satisfy cleanliness requirements outlined in EHEDG guidelines. Inductive sensors available in a 12 mm or 18 mm design fulfill all zone A requirements and can be used in the product-contact area without a second thought. Pepperl+Fuchs has developed a comprehensive, intelligent mounting concept for all 3 technologies, which fulfills all the cleanliness and gap requirements specified in EHEDG. For splash areas in zone B, Pepperl+Fuchs has developed special sensors that are capable of withstanding vigorous cleaning processes, yet are just as easy to install as standard sensors.