42BT Long-Range Background Suppression Sensor Installation Instructions

This document provides installation, adjustment, and wiring instructions for the Allen-Bradley 42BT family of long-range background suppression sensors, which reliably detect objects while ignoring background reflectivity regardless of target color. It covers specifications, mounting considerations, sensitivity adjustment procedures with and without a background present, and includes wiring diagrams, dimensions, and typical response curves for 1 m and 2 m sensing range models.