Extractive visibility measurement for increased safety in tunnels
The VICOTEC450 provides an optimal solution for visibility measurement if Fixtures in the tunnel tube are not permitted or not possible due to lack of space Fog should not be included in the visibility measurement.
The VICOTEC450 draws air from inside the tunnel, heats it above the dew point, and determines the visibility with a high level of accuracy using scattered light technology. It regularly and automatically carries out a functional test including the function of the laser and receiver as well as the contamination of the optics. Maintenance requirements for cleaning and filter exchange are automatically registered and signaled in time by the VICOTEC450 due to contamination check and measurement of the air flow rate (optional).
At a glance
Regular functional test with contamination measurement
Linearity test can be carried out with filter set
Internal purge air for long intervals between cleaning
Maintenance signal (filter and cleaning)
Extendable with various interfaces or I/O modules (e. g., PROFIBUS, Ethernet, analog module, etc.)
Visibility monitoring in tunnels for ventilation control