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How do I choose a signal device in dangerous environments?

Hazardous areas create special circumstances for machine interface

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What types of signaling devices make the most sense in hazardous locations?Alvaro Sanchez, product manager, Rockwell Automation: Typically, high-output horns and high-brightness beacons are being used in these kinds of applications, as long as they meet the hazardous-location ratings required by the application. Products that are triple-certified (CULus, IEC/Ex and Div/Class) will help customers to deploy the same hardware globally. Michael O'Neill, sales manager, Werma-USA: The main difference between equipment in hazardous and ordinary locations is the enclosure it resides in. For explosion-proof solutions getting a visual indication through a window of proper…

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