Banner Engineering Corp. introduces the R-GAGE™ QT50R, an advanced radar-based sensor for close and long-range presence detection in a broad range of weather conditions. The QT50R features frequency modulated technology to accurately monitor or detect objects while resisting rain, wind, humidity and extreme temperatures.

The QT50R uses Frequency Modulated Continuous Wave (FMCW) radar to reliably detect moving or stationary cars, trains, trucks and cargo. The QT50R detects target objects up to 15 m away and ignores anything beyond the setpoint. The IP67-rated sensor operates at 24 GHz in the Industrial, Scientific and Medical (ISM) telecommunication band, with no special licensing required. List price for the QT50R is $589.

“The cutting-edge QT50R features FMCW true-presence radar paired with exceptional environmental resistance, allowing the sensor to operate in heavy precipitation and temperatures ranging from -40° to 65° C,” said Mike Dean, Banner Engineering product manager. “The QT50R is easy to configure and features bright indicator LEDs for simple status monitoring.” Dean adds, “The QT50R’s robust housing features a 30 mm threaded mounting base to provide versatile installation options.”

Applications. The QT50R is ideal for outdoor and challenging environments, making it well suited for a wide variety of uses in locomotive, traffic control and many additional applications, including:
Train and tram detection and location in tunnels
Cargo positioning and detection on a truck bed
Truck detection at a loading dock
Access control to parking ramps and garage doors
Car detection in drive-thrus
Position sensing of cranes
Measuring and profiling in tollbooths
Overheight detection for tunnels and bridges


• Range The sensor is able to detect a proper object (see below) from 2 to 15 meters, depending on model. • Detectable Objects Objects containing metal, water, or similar high-dielectric materials. • Operating Principle Frequency modulated continuous-wave (FMCW) radar • Operating Frequency 24.05 to 24.25 GHz, ISM Band (varies slightly with national telecom regulations) • Supply Voltage 12 to 30V dc, less than 100 mA, exclusive of load • Supply Protection Circuitry Protected against reverse polarity and transient overvoltages • Delay at Power-up Less than 2 seconds • Output Configuration Bipolar NPN/PNP output, 150mA; • DIP switch 7 selects N.O. (default) or N.C. operation • Output Protection Protected against short circuit conditions • Indicators Power LED: Green (power ON) • Signal Strength LED: Red, flashes in proportion to signal strength. • Output LEDs: Yellow (output energized)/Red (configuration) See Figure 2. • Adjustments DIP-switch-configurable sensitivity, sensing distance, and output configuration • Construction Housing ABS/polycarbonate • Lightpipes Acrylic • Access Cap: Polyester • Operating Temperature –40° to +65° C (–40° to +149° F) • Environmental Rating IP67 • Connections Integral 5-wire 2 m (6.5') cable or M12 Euro-style QD fitting. QD models require a mating cordset; see page 4. • Certifications CE and ETSI/EN 300 440; FCC part 15; Industry Canada; for others, consult the Factory.
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