What this light curtain does on the line
The Omron F3SJ-A1900P25-TS is a safety light curtain from the F3SJ-A series, rated for hand protection with a 25mm detection capability. The 1900mm protective height and 95 beams at 20mm pitch cover a tall opening. Operating range runs from 0.2m to 7.0m, which covers most machine guarding distances — close-coupled for a small press or across a wider conveyor entry. The 24VDC supply is standard for safety circuits; you'll see this on a dedicated safety relay or a safe PLC output. IP65 rating means the emitter and receiver housings handle washdown splashes and dust, so this is fine for food processing or machining environments where coolant mist is present.