GLOSSARY

Light Curtain

A light curtain is an optoelectronic device that projects a field of infrared beams in front of a hazard and stops the machine the instant a beam is broken.

It suits points that need frequent access, where a physical guard would be opened constantly. Its distance from the hazard is worked out under EN ISO 13855 from approach speed and stopping time, and muting can let materials pass while people cannot.

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