What the 14 mm detection means for fit
The Omron F3SG-4SRB0840-14-F is a Type 4 safety light curtain from the F3SG-SR series, rated for finger detection at 14 mm resolution. That rating means it catches individual fingers reaching into the hazard zone — finger-protection class per IEC 61496-1 — so it is appropriate for access guarding where hand entry is possible but arm or body penetration is not the risk. The 10 mm beam pitch packs 83 beams over the 840 mm protective height, giving the curtain enough density to detect a 14 mm object anywhere in the field. Operating range spans 0.3 m to 10.0 m, which covers reach-in guarding on small assembly stations up to pass-through protection on conveyor lines. The 24 VDC supply is standard for safety controllers and PLC safety outputs — no separate power rail needed.
Environmental rating and mounting
Rated IP65/IP67/IP67G — the G suffix means oil resistance, so this curtain holds up on machining centers and coolant splash zones where standard IP67 optics would fog or degrade. Dust-tight and waterproof to 1 m immersion, and the oil-resistant seal keeps cutting fluids out of the emitter and receiver housings. Operating temperature from -30°C to 55°C covers cold storage lines and hot foundry floors without derating. Mounting brackets are typically ordered separately; the 840 mm protective height fits standard machine openings around 900 mm. Plan for alignment aids if the range exceeds 5 m — the narrow 14 mm detection zone demands good emitter-receiver alignment.
Blanking and muting for production flexibility
Built-in blanking and muting functions let the curtain ignore fixed obstructions (fixtures, clamps) or temporarily bypass during material pass-through without removing the safety function. Blanking reduces the effective protective height by the blanked zone; muting requires external sensors and a safety controller to validate the mute condition. These features are configured through the controller interface, not dip switches on the curtain itself.