Technology Sourcebook
www.foodengineeringmag.com/articles/90081-non-contact-safety-sensor

Non-contact safety sensor
January 9, 2013
Used on interlocked gates and hatches, the ABB Jokab Eden non-contact, non-magnetic safety sensor has built-in diagnostics and a quick disconnect. Up to 30 sensors can be connected in a series. Safety light beams and E-stops can be connected in the same safety circuit. The Eden E encapsulated IP67K version is available for harsh environments.
ABB Jokab Safety; 888-282-2123; www.jokabsafetyna.com