I have a chain in an oven that does not exit the oven that I need to sense the chain links. The oven is 400+F degrees. The atmosphere in the oven is smokey with formeldehyde and oil. I've tried a high temperature inductive switch and fiber optics but neither worked well. Has anyone created a flipper arm or other mechanical device so that a typical inductive or photo proximity switch can be used outside the oven environment - the arm or flipper would actuate when ever a chain link passed it?
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Oven Switch
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