I have a client with a food and bev plant. they have a prox switch that continually shorts out due to static. They can't avoid the static from occuring, but also does not want to keep replacing the switches. The switches have been grounded, but that has not fixed the issue, it has only shortly prolonged the life of the switches. they are currently replacing them twice a year. the switches they are using is an Allen Bradley 875C-F10N30-R3. does anybody know of a static suppressing prox switch, or a solution to eliminate static interference? thanks for any help you can offer.