The Omron F3SG-4SRA1920-25 is a Type 4 safety light curtain from the F3SG-SR series, built for hand protection (25 mm detection capability) across a 1920 mm protective height. Its 20 mm beam pitch and 96 beams create a detection zone that catches fingers and hands reaching into a hazard area — meeting the requirements of IEC 61496-1 for finger/hand protection. The operating range spans 0.3 m to 20.0 m, so it can guard a wide machine opening or a robot cell entry. Rated IP65/IP67/IP67G means the housing and optics hold up to washdown environments — dust-tight, protected against temporary immersion, and oil-resistant. That IP67G rating (the 'G' for oil) makes it a fit for food-and-beverage lines where caustic washdown chemicals are routine. Supply voltage is 24 VDC, and the operating temperature range of -30°C to 55°C covers freezer applications and hot factory floors alike.
Built-in flexibility for format changes
The F3SG-4SRA1920-25 includes blanking and muting functions as standard features. Blanking lets you disable specific beams to allow fixed machine tooling (like a conveyor frame) to pass through the light curtain without tripping — no need for a separate bypass. Muting temporarily suspends the curtain during a defined material pass-through, which is useful on packaging lines where a carton or pallet needs to enter the guarded zone during a non-hazardous cycle. These are configurable via the controller, so changeover between SKUs takes minutes, not a rewire.