Description

Maximum accuracy for winter maintenance tasks

The optical road condition sensor is installed on a gantry sign of the road and uses optical technology to measure the road surface condition, the coefficient of friction, the temperature, the freezing point, the salt concentration, the water or ice film height and the snow height. The sensor discriminates between the following road conditions: dry, moist, wet, extremely wet and slippery.

The sensor is specially designed to help improve the planning and quality control of all kind of winter maintenance tasks on roads, mountain passes, ski resorts, airports, etc. in order to ensure maximum safety.

Digital communication

It can be connected to any conventional datalogger to perform the data storage and its subsequent downloading and monitoring on a computer. It has a RS-485 serial port with UMB protocol and includes a 10 meters long cable.

Technical specifications

Sensor specifications

Coefficient of friction:

• Range: 0 to 1

Temperature:

• Range: -40ºC to 100ºC
• Resolution: 0.1ºC
• Accuracy: ±1.5ºC

Freezing point:

• Range: -40ºC to 0ºC
• Resolution: 0.1ºC
• Accuracy: ±1.5ºC

Salt concentration:

• Range: 0 to 100%

Water or ice film height:

• Range: 0.6 to 4 mm
• Resolution: 0.01 mm
• Accuracy: ±20%

Snow height:

• Range: 0 to 10 m

Electrical specifications

• Power supply voltage: 9 to 24 VDC
• Power consumption: 340 mA (max.)
• Heater supply voltage: 24 VDC
• Heater consumption: 1.25 A (max.)
• Output signal: RS-485

Mechanical specifications

• Working temperature: -40ºC to 70ºC
• Material: high strength plastic
• Dimensions: 225 x 130 x 170 mm
• Weight: 1.1 Kg