Visibility and Present Weather

Biral BTD-350 Thunderstorm Lightning Detector

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Biral Lightning Detectors have a faster reporting of strikes than common satellite systems. Optics are not relied on to see the flash, making detection more accurate. Fast reporting enables the thunderstorm to be tracked, activity is plotted every 2 seconds, meaning you can predict where the storm will move next.

Biral HSS VPF-510 Visibility Sensor (analog)

The VPF-510 Visibility sensor offers reliable visibility measurement in a robust and highly corrosion resistant package. The serial digital output supplemented by analogue outputs and switching relays makes this sensor particularly suited to offshore and marine applications.

The sensor can be configured to report either Meteorological Optical Range (MOR) or extinction coefficient (EXCO) in the serial data interface and on the voltage or current outputs. To further increase flexibility the sensor measurement range is configurable for the analogue outputs. When the sensor is required to drive a local warning beacon, sign or fog horn the relays can be used.

Biral HSS VPF-710 Visibility Sensor (digital)

The VPF-710 Visibility sensor provides high quality visibility measurement in a compact and highly robust package.

The open design of the sensor head allows the free passage of air ensuring the visibility measurement is as accurate as possible in all conditions. Other features of the design ensure the correct response to all precipitation types as well as smoke and dust. The VPF-710 is highly resistant to disturbance from nearby light sources such as aviation obstacle warning lights, both constant and flashing. Even the latest generation of IR obstacle lights are not a problem.

Biral HSS VPF-730 Visibility and Present Weather Sensor

The VPF-730 Visibility sensor provides accurate visibility and present weather measurement in a compact and robust package, making it well suited to both general and offshore aviation applications.

The unique backscatter receiver gives the VPF-730 unparalleled abilities in distinguishing frozen from liquid precipitation, a key factor when determining the safety of aircraft operations. Present weather conditions are reported using WMO table 4680 codes to simplify system integration and compliance. An optional interface to the ALS-2 Ambient Light Sensor makes the VPF-730 suited for use in aviation applications where Runway Visual Range (RVR) information is required in addition to METAR data.

Biral SWS-100

The SWS-100 is optimised for use in applications where accurate and reliable visibility measurements are required alongside basic present weather measurements. The forward scatter measurement principle and unique design ensure the output is both accurate and reliable in all weather conditions and will not be influenced by local lights sources, even those that flash.

Full compliance with the visibility measurement requirements of the International Civil Aviation Organisation Runway Visual Range specification and easy integration of the Biral ALS-2 ambient light sensor makes the SWS-100 perfect for use in aviation applications where RVR data is needed.

Biral SWS-200

The SWS-200 is designed for use in applications where accurate and reliable visibility measurements are required with the addition of WMO 4680 present weather codes.

The sensor measures Meteorological Optical Range (MOR) as well as reporting the presence of liquid and frozen precipitation. Precipitation is reported using WMO table 4680 codes for easy integration with aviation systems. A feature of Biral sensors is the ability to report precipitation intensity according to a range of national standards. The unique backscatter receiver gives the SWS-200 unparalleled abilities in distinguishing frozen from liquid precipitation, a key factor when determining the safety of aircraft operations. Whilst the 10m to 75 km visibility range makes the sensor suitable of use in meteorological observation networks and research applications.

Tunnel Sensors: ILLIOS Illuminance Monitor in Traffic Tunnels

The ILLIOS measures the level of illuminance within the tunnel bore to ensure interior illumination levels are being continuously maintained, in order to affect safe lighting conditions for drivers. Illuminance, or incident lighting, determines the amount of light that covers a specific surface or area within the tunnel.

Tunnel Sensors: LUMIOS luminance monitor in traffic tunnels

The LUMIOS MkIII measures the level of luminance, or brightness, created by natural light at the tunnel portals to ensure that the visual perception of drivers is maintained, both day and night, by avoiding sudden variations in lighting levels and potential “black hole effect” when entering and exiting a tunnel. The LUMIOS MkIII can also be used for the measurement of luminance within the tunnel.

Tunnel Sensors: VIPA MkII Open path visibility monitor for traffic tunnels

The VIPA MkII tunnel monitor makes a visible opacity measurement to determine the visibility within the tunnel. These measurements can be used as part of an air quality management system for ventilation control and/or secondary smoke detection within a traffic tunnel, rail tunnel or other confined space.

Tunnel Sensors: VIPA-L long open path visibility monitor for ambient environments

The VIPA-L Long Path Visibility Monitor makes a visible opacity measurement to determine the average visibility along the sight path of the instrument, within an ambient environment such as road, rail, meteorological or other industrial application. These measurements can be used as part of an air quality management system.