Description
The Omron E3S-BR31 is a retroreflective photoelectric sensor designed for object detection up to 1 meter. It operates on a 10–30 VDC supply and features a PNP output with selectable Light-ON/Dark-ON modes. The sensor uses a red LED light source and is built for industrial environments requiring reliable optical detection.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Omron |
| Category |
Sensors & Switches |
| Part Number |
E3S-BR31 |
| Subcategory |
Photoelectric |
| Series |
E3S-B |
| Sensing Method |
Retroreflective, Polarized |
| Sensing Distance |
1 m |
| Light Source |
Red LED (700 nm) |
| Supply Voltage |
10 – 30 VDC |
| Output Type |
PNP Open Collector |
| Response Time |
500 µs |
| Ingress Protection |
IP67 (NEMA 4X, 6) |
| Operating Temperature |
-25°C to +55°C |
| Connection Method |
Pre-wired Cable (2 m) |
| Weight |
0.10 lbs |
Information About E3S-BR31
The E3S-BR31 is part of the Omron E3S-B series of compact industrial photoelectric sensors. It utilizes a polarized retroreflective sensing method to detect objects with stable performance over a sensing distance of up to 1 m. The unit is equipped with a pre-wired 2 m cable for direct connection and supports a 10 to 30 VDC power supply. With an IP67 protection rating and adjustable sensitivity, it is suited for machine automation and conveyor-based detection systems.
Key Features:
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Retroreflective Sensing: Polarized retroreflective detection up to 1 meter.
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Red LED Light Source: 700 nm wavelength for stable optical performance.
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PNP Output: Open collector output with Light-ON/Dark-ON selectable mode.
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10–30 VDC Operation: Wide DC supply voltage range.
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Fast Response Time: 500 µs operate/reset response.
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IP67 Protection: Dust-tight and waterproof housing.
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Adjustable Sensitivity: Built-in potentiometer for fine adjustment.
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Pre-Wired Connection: Integrated 2 m cable for installation flexibility.
The E3S-BR31 delivers the reliability and precision required for industrial object detection and positioning applications.
