Industrial SEID BF-A-36TP Cable Fiber Optic Sensor

The TRI-TRONICS SEID fiber optic sensor, part of the SMARTEYE MARK II family, uses a BF-A-36TP bifurcated glass fiber optic light guide to detect the presence or absence of objects without contact. Designed for Videojet printers and other coding systems, packaging equipment, conveyors, labeling equipment, and automated production lines, it delivers reliable product detection and print trigger sensing in demanding industrial environments. Key specs include a 12–24 VDC supply, infrared LED at 880 nm, and dual transistor outputs (NPN and PNP) for flexible interfacing; the fiber optic cable has a 0.125 in diameter bundle, 36 in (0.91 m) length with a PVC mono-coil jacket, and a 1.50 in threaded brass sensing head. The SEID enables non-contact sensing to trigger actions such as print timing or presence checks, with a response time up to 50 µs in the light state (sensor dependent). Common replacements include TRI-TRONICS SEIF1, SEIDF1, and SEB variants, reflecting its role in maintenance and upgrades of Videojet and packaging lines. Typical applications span Videojet printers, bottling lines, food processing systems, and material handling where precise detection is essential.