Summary
The Short Range Sensor activates TraffiCalm flashing crossing systems when motion occurs within a defined approach area. The device monitors the sidewalk or trail approach and sends an activation signal to the controller through a contact-closure input.
The sensor operates automatically and does not require push-button interaction. Event-based activation reduces unnecessary flashing operation and lowers system power usage compared to continuously operating warning devices.
Specifications
Detection
- Doppler microwave motion sensing
- Operating frequency
- 24 GHz band
- Detection modes
- approach, depart, or bi-directional
- Typical detection range
- Up to approximately 60 ft (human-scale movement)
- Typical detection range
- Up to approximately 80 ft (bicycle or larger movement)
- Beam angle
- ~18° horizontal, ~9° vertical
- Typical response time
- 0.2 seconds
Electrical Interface
- Operating voltage
- 12–24 VAC or DC
- Current consumption
- ~75 mA
- Output
- relay contact closure
- Contact type
- Form A (Normally-Open)
- Interface
- dry contact activation input
- Isolation
- no voltage provided by the sensor
Compatibility
- Compatible with TraffiCalm flashing sign controllers
- Functions as a standard activation input device
Environmental
- Outdoor field device enclosure
- Operating temperature
- −35 °F to 165 °F (−37 °C to +75 °C)
Physical Description
- Pole-mount bracket
- Dimensions
- approximately 7.5 in × 6 in × 5.5 in
- Weight
- approximately 1.55 lb
- Integrated 15 ft harness
- Recommended mounting height: 10–20 ft above grade
Adjustable Parameters
- Detection range
- Detection direction (approach / depart / bi-directional)
- Relay hold time (0.25–25 seconds)
Warranty
- 5-year limited warranty
- Unlimited U.S.-based technical support
LED Flashing Rings
Yield
Chevron
Rectangle
School Zone
Warning
Stop
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