The Omron F3SJ-A1085P20 is a Type 4 safety light curtain from the F3SJ-A series, built for finger and hand detection at a 20 mm detection capability. That 20 mm figure means it catches fingers reaching into the hazard zone — finger-protection class per IEC 61496-1 — so it is sized for access guarding where a person could reach past the screen. The 1085 mm protective height and 15 mm beam pitch (72 beams total) define the guarded area: 1085 mm vertical coverage with no gaps larger than 15 mm between beams. Operating range spans 0.2 m to 9.0 m, which covers most machine guarding distances from close-access stations to wider cell perimeters. Rated IP65 (dust-tight, water-resistant) means the sensor housing and optics withstand washdown — suitable for food-and-bev lines or any area where hosing down is routine. Blanking and muting functions are built in, so you can configure fixed or floating blanking to ignore stationary objects (like a fixture) and muting to bypass the curtain during a material pass-through — all without an external controller.
Omron F3SJ-A1085P20 Safety Light Curtain, 20mm Detection, 10
Omron F3SJ-A series safety light curtain, F3SJ-A1085P20, finger/hand protection, 20mm detection capability, 1085mm protective height, 15mm beam pitch, 72 beams, 0.2m-9.0m range, IP65, 24VDC.
Specifications
| Parameter | Value |
|---|---|
| Series | F3SJ-A |
| Parameter | Value |
|---|---|
| Detection capability (resolution) | 20mm |
| Protection | Finger/Hand |
| Protective height | 1085mm |
| Operating range (sensing distance) | 0.2m ~ 9.0m |
| Number of beams | 72 |
| Beam pitch | 15mm |
| Features | Blanking, Muting Function |
| Parameter | Value |
|---|---|
| Supply voltage | 24VDC |
| Parameter | Value |
|---|---|
| Operating temperature | -10°C ~ 55°C |
| Ingress protection (IP) | IP65 - Dust Tight, Water Resistant |
Product details
Frequently asked questions
What is the detection capability and what does it mean?
The detection capability is 20 mm, which corresponds to finger/hand protection per IEC 61496-1. That means the curtain reliably detects a 20 mm diameter object anywhere in the field — small enough to catch fingers reaching into the hazard zone.
What is the protective height and beam pitch?
Protective height is 1085 mm, covered by 72 beams at a 15 mm pitch. The 15 mm spacing ensures no gap larger than that between beams, so a finger-sized object cannot slip through undetected.
What ingress protection does it carry?
IP65 — dust-tight and protected against water jets. Suitable for washdown environments in food processing or wet machining areas.
Does it support blanking and muting?
Yes, blanking and muting functions are built in. Blanking allows you to ignore fixed objects (like a fixture) in the field; muting bypasses the curtain during a material pass-through, typically using external muting sensors.