The Banner SM2A312FQD Mini-Beam Infrared LED Glass Fiber Optic Sensor is a compact, self-contained photoelectric sensor designed for versatile industrial applications. Operating on an AC voltage range of 24 to 240V, this sensor is compatible with Banner’s glass fiber optic assemblies, enabling use in opposed, retroreflective, and diffuse sensing modes.
Key Features
- Infrared Sensing Beam: Utilizes an 880 nm infrared LED for reliable detection.
- Flexible Sensing Modes: Adaptable to various applications through opposed, retroreflective, and diffuse fiber optic modes.
- Light/Dark Operate Selection: Switch-selectable for light operate or dark operate modes to suit different operational requirements.
- Rapid Response Time: Offers an 8-millisecond response time, ensuring prompt detection and processing.
- Robust Output: Features an SPST SCR solid-state output capable of switching up to 300 mA, with low leakage current and saturation voltage.
- Durable Construction: Encased in a rugged, epoxy-encapsulated housing that meets NEMA standards 1, 2, 3, 3S, 4, 4X, 12, and 13, as well as IEC IP67, providing excellent protection against environmental factors.
Technical Specifications
- Supply Voltage: 24-240V AC
- Output Type: SPST solid-state 2-wire output
- Operating Temperature Range: -20°C to 70°C
- Housing Material: Reinforced thermoplastic polyester
- Connection: Integral 3-pin 1/2″ Micro quick-disconnect connector
The SM2A312FQD sensor’s compact design and versatile functionality make it an ideal choice for a wide range of industrial sensing applications, offering reliable performance and ease of integration.

















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