29 dynamic sensors standard sensors react to static

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Unformatted text preview: le have the following features compared to ordinary sensors: • Several indicator lights for operating and function display, e.g. for "emitter switched on", "light path free", "Light path interrupted", "light reception", "Light reception good" and "Light reception poor". • For sensors with relay output, two positive action relay contacts for the connection of both outputs to the machine control. • Front lens heating, lens contamination indicator. • Permanent self-monitoring. • High optical and electrical noise immunity. Accident protection grid sensors consist of a system of parallel acting sensors, which create a dense grid of parallel infrared emission zones. The individual sensors of the grid are actuated in quick succession according to the multiplex method. A beam from the receiver to the emitter serves the purpose of synchronisation. Resolution is for example 35 mm between parallel beams (Minimum obstacle size). Various d...
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This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.

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