What This Light Curtain Does
The Omron F3SG-4SRB0440-25-F is a Type 4 safety light curtain from the F3SG-SR series, rated for hand protection with a 25 mm detection capability. That 25 mm finger/hand resolution means it catches a hand reaching into the hazard zone before contact — the standard for access guarding per IEC 61496-1. Protective height of 440 mm and a 20 m operating range give it coverage for small to mid-size openings on assembly stations or packaging machines. The 20 mm beam pitch with 22 beams creates the detection plane; the 24 VDC supply is typical for safety circuits tied to a safety PLC or dedicated safety relay. IP65/IP67/IP67G means the housing and optics survive washdown environments — oil-resistant and waterproof, suitable for food-and-bev lines where the curtain sees caustic spray.
Integration Notes
Built-in blanking and muting functions simplify wiring: blanking lets you mask fixed obstructions (e.g., a conveyor rail) inside the detection zone without an external bypass; muting allows automatic suspension during material passage when paired with external muting sensors. Both features reduce the need for separate safety logic modules. Operating temperature range of -30°C to 55°C covers cold storage and unheated factory floors. The 0.3 m minimum range means it can be mounted close to the machine frame — no dead zone that forces a wider safety distance.