What it is and what the ratings mean
The Omron F3SJ-A0623P14 is a type-4 safety light curtain from the F3SJ-A series, designed for finger detection with a 14 mm detection capability — that means it catches fingers reaching into the hazard zone (finger-protection class per IEC 61496-1). The 9 mm beam pitch and 68 beams give a protective height of 623 mm, covering a vertical access area of that height. Operating range spans 0.2 m to 9.0 m, so it works for both tight machine guarding and wider access points. Rated IP65 — dust-tight and protected against water jets — so the sensor body and optics withstand washdown, making it suitable for food-and-bev lines or any area that gets hosed down. Supply is 24 VDC, standard for safety circuits. Operating temperature from -10°C to 55°C covers most indoor industrial environments. Built-in blanking and muting functions let you configure fixed or floating blanking to ignore stationary objects (like a fixture) in the field, and muting to temporarily bypass the curtain during material transfer — both programmable without an external controller.