The Omron F3SG-4RA1680-14 is a type-4 safety light curtain from the F3SG-RA series, designed for finger detection with a 14mm detection capability and a 1680mm protective height. It uses 167 beams at a 10mm pitch to create a sensing field that covers from 0.3m to 10.0m, making it suitable for guarding access to hazardous machinery where small hand or finger intrusion must be caught. The 14mm detection capability means it reliably detects a 14mm-diameter object anywhere in the field — that is the finger-protection grade per IEC 61496, so it stops a hand reaching through before the machine can cause injury.
The 14mm detection capability and 1680mm protective height are the two numbers that decide whether this curtain fits your opening. A 1680mm height covers a typical machine access zone up to about 1.7m tall; if your guarded area is taller, you stack multiple units. The 10mm beam pitch gives the 14mm detection — tighter pitch catches smaller objects but also means more beams (167 here) and a slightly shorter maximum range than a wider-pitch curtain. The 0.3m minimum range is short enough to mount close to the machine frame; the 10m maximum covers most cell perimeters. IP67 ingress protection means it handles washdown environments — dust-tight and protected against temporary immersion, so it survives the hose-down in food or automotive lines.
Built-in features for the application
Blanking and muting functions are built into this model. Blanking lets you ignore fixed objects (like a conveyor frame) within the field without disabling the whole curtain — useful when the machine has a permanent obstruction that doesn't create a hazard. Muting temporarily suspends the safety output during a non-hazardous part of the cycle, such as when a workpiece passes through the curtain on a conveyor. Both features are configured through the controller, not hard-wired, which saves panel space and reduces wiring compared to external bypass modules.