Overview
The R-GAGE sensor emits a well-defined beam of high-frequency radio waves from an internal antenna. This emitted energy reflects off of a retroreflective target and returns to the receiving antenna. As long as the antenna is receiving reflected radio waves, the output will remain off. If an object blocks radio waves, the output will turn on. The distance range for the retroreflective target can be configured via remote TEACH wire. Objects beyond the retroreflective target are ignored (also called background suppression). In Normally Closed mode, the output operates like a foreground suppression sensor.

Radar-Based Retroreflective Sensors for Detection of Moving and Stationary Targets

• FMCW (true-presence) radar detects moving and stationary objects
• Retro-wave sensor - use of a reference signal (retroreflective target) enables reliable detection of weak targets in the foreground
• Retro-wave detection - output activates for objects detected in the foreground OR for loss of detection of the retroreflective target
• Easy setup and configuration of range, sensitivity, and output with simple DIP switches
• Ignores objects in the background beyond the retroreflective target
• Double reflection immunity technology
• Sensing field is configured via remote TEACH
• Sensing functions are unaffected by wind, falling rain or snow, fog, humidity, air temperatures, or light
• Sensor operates in Industrial, Scientific, and Medical (ISM) telecommunication band
• Rugged IP67 housing withstands harsh environments