Model: RWS-20 | Make: BIRAL |
Category: Visibility Sensors
Any sensors or measurement systems located at the side of the carriageway have to be able to withstand both the dirty and potentially corrosive environmental conditions (salt spray in winter, dirty water spray at other times), but also have to operate largely independently and for extended periods of time as access can often be restricted. The RWS-20 visibility sensor is specifically designed for harsh road-side conditions found around the world. The sensor housing is a very robust aluminium enclosure which is sealed against dirt and water ingress (IP66/67) and designed to withstand the rigours of 24/7 unattended operation. The measurement windows are protected by hoods which are designed to reduce the amount of dirt and external light reaching the optics.
The 10m to 7.5km measurement range on the RWS-20 is optimal for use in road applications. Heating of the optical windows prevents misting and the optional sensor hood heating can be provided, allowing use in the harshest of conditions. Both optical windows are monitored for contamination and the visibility output is automatically compensated to reduce maintenance requirements.