RWS-30 Road Tunnel Weather Sensor Biral
Overview of the RWS-30 Road Tunnel Weather Sensor
The RWS-30 Road Tunnel Weather Sensor is specifically designed for road and tunnel applications where precise visibility measurements are critical. Utilizing the forward scatter measurement principle, this compact sensor delivers reliable and accurate visibility data under various weather conditions. Its outputs are optimized to meet the specific needs of tunnel systems, ensuring compliance with international safety standards.
Applications
As traffic congestion increases, road network managers rely on Road Weather Information Systems (RWIS) to gather essential meteorological data for traffic flow management and road safety. Road tunnels, in particular, pose unique challenges due to the external weather conditions at their entrances and their potential for developing microclimates. Furthermore, tunnels are vulnerable to pollution build-up from stationary vehicles and the risk of fires, making precise visibility measurements vital. The RWS-30 is tailored to meet these demands, adhering to the standards set by the PIARC Technical Committee for tunnel environments.
Tunnel Safety
The RWS-30 visibility sensor is an essential component of tunnel safety systems. Its extended visibility range enables it to serve as a sensitive pollution monitor, triggering ventilation systems when pollution levels rise. The sensor is also capable of fire detection by identifying sudden, localized drops in visibility. With a measurement range spanning 200m to 99.99km and a resolution of 1m, the RWS-30 ensures high sensitivity for both air quality monitoring and fire detection.
Key Features:
- Measurement Range: 200m to 99.99km with 1m resolution
- Forward Scatter Design: Compact and unaffected by ambient lights
- Ease of Installation: Can be installed by a single person
- Window Heating: Prevents condensation and frost buildup
- Contamination Monitoring: Ensures ongoing sensor accuracy
- Outputs: EXCO and MOR, with options for analogue voltage and current
- Data Output: Serial options (RS232, RS422, RS485)
The RWS-30 combines advanced technology and thoughtful design to provide an essential solution for visibility and air quality monitoring in tunnels, enhancing both safety and efficiency.
RWS-30 Road Tunnel Weather Sensor Biral Specifications
- Measurement: Visibility (MOR & ESCO)
- Output Options:
- RS232, RS422, or RS485
- 0-10V
- 4-20mA
- Relay outputs
- Measurement Principle: Forward scatter meter with a 39° to 51° angle, centered at 45°
- Measurement Error:
- ≤10.0% for ranges from 200m to 10,000m
- ≤20.0% for ranges from 10,001m to 30,000m
- Sensor Power: 9-36V DC
- Window Contamination Monitoring: Standard on both sensor head windows
- Operating Temperature: -40°C to +60°C
- Operating Humidity: 0-100% RH
- Protection Rating: IP66/IP67
- Weight: 4.3 kg
- Color: Grey (RAL 7045)
The RWS-30 sensor combines high accuracy with rugged durability, ensuring reliable performance across a wide range of environmental conditions.
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