The HSS VF510 visibility sensor is designed for applications where digital and/or analogue signals and/or relay outputs are required from one compact sensor. Part of the established Biral HSS range of visibility sensors the VF510 provides the user with a choice of digital RS232, 422, 485 or analogue voltage or current outputs along with three relay outputs for fog warning and sensor self-test status.
The HSS VPF-750 is based on the market leading HSS VPF-730 sensor combined with reference quality humidity, temperature and precipitation sensors to provide even better discrimination of present and past weather.
The HSS VPF-750 provides industry leading accuracy combined with the 50 most important WMO table 4680 codes (present weather reported from an automatic weather station).
The VPF-710 digital visibility sensor is designed for accurate measurement of visibility and has been in operation for over 20 years. It is a compact, robust instrument with excellent time proven performance and is suitable for use in extreme conditions.
The VPF-730 sensor is one of a kind, being the only forward scatter meter to measure visibility AND present weather (WMO 4680) including precipitation type and rate. It is a compact, robust instrument with excellent time proven performance and is suitable for use in extreme conditions. The sensor is designed for accurate measurement and has been in operation for over 20 years.
The SWS-050 is optimised for use in applications where accurate and reliable visibility measurements are required. 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.
The SWS-050T is optimised for use in tunnel applications where accurate and reliable visibility measurements are required. 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.
The SWS-100 is optimized for use in applications where accurate and reliable visibility measurements are required with the addition of fundamental WMO 4680 precipitation codes. The availability of digital, analogue and switching relay outputs provides the flexibility to connect to a wide range of ITS (Intelligent Transport Systems) and other data controllers.
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 availability of digital, analogue and switching relay outputs provides the flexibility to connect to a wide range of systems and other data controllers.
The SWS-250 is optimised for use in aviation applications where both visibility and extended present and past weather information is required.The sensor measures: visibility (MOR, EXCO and TEXCO), fog, haze, drizzle, snow, hail and other non-frozen precipitation according to WMO 4680. METAR coded outputs are also provided.
The detector is sensitive to all forms of lightning (cloud-to-ground, cloud-to-cloud etc.) and provides accurate range estimation for lightning up to 83 km 51 miles) away. Storm direction is also available if combined with the optional direction finding module. Output is updated every 2 seconds and can be displayed on computer or warnings indicated directly via optional relays. Users can customize the distance for up to four lightning proximity alerts.
Thunderstorms pose a major risk to human activity and infrastructure, with hazardous conditions ranging from floods to hail, tornadoes and lightning. The best indicator of thunderstorm activity is the presence of lightning, which fortunately produces a powerful, broad spectrum of electromagnetic signals revealing its presence thousands of kilometers away. Radio waves from lightning are modified during their journey from the storm and while characteristics such as signal amplitude reduce with distance, such signal changes are not usually sufficiently robust to allow accurate ranging to the storm. Lightning location methods therefore either require signals received by multiple sensors arranged as a large network, or if only a single site is available, a receiver and complex processing algorithms analyzing various waveform characteristics to determine lightning range and in some cases direction as well.
Biral has one of the largest ranges of meteorological products available in the world and has established itself as a major supplier with impressive performance. Biral offers a level of application knowledge, advice and instrumentation which is second to none. Biral represents many of the world’s leading manufacturers of meteorological sensors and systems and can therefore can help you select the best equipment for your application. Together with detailed applications advice, Biral offers comprehensive after-sales service for the life of the instrument with calibration facilities backed by ISO 9001:2000 accreditation.
The Biral ALS-2 is a sensor designed to provide an accurate and reliable determination of the amount of background light during all weather conditions. Such a sensor is usually referred to either as an Ambient Light Sensor (ALS) or Background Luminance Sensor. Such sensors are typically used as part of a system to determine the Runway Visual Range at an aerodrome. The ambient light received by the sensor’s 6° field of view is focused onto a photodiode of similar spectral response to the human eye. The output from the photodiode is used to determine the ambient light level using the standard (SI) units of candela per square meter (cd m-2), averaged over one minute.
The Biral ALS-2 is supplied pre-calibrated. However, it is recommended that periodic calibration checks are performed as part of routine maintenance of the sensor. Such periodic checks may also be a necessary requirement if the sensor is used as part of an aerodrome runway visual range system. To facilitate convenient in-field calibration checking, Biral has developed a portable calibration unit specifically for the ALS-2, available as an additional option.
