Datasheet Contact us Forward Scatter FD70 Series FD70 Series is the seventh generation of Vaisala visibility and present weather sensors. It is designed based on more than 30 years of forward scatter technology development experience. This technology innovation sets a new standard in precipitation identification, quantification, and visibility determination accuracy. The novel use of a single thin light sheet instead of the conventional light cone results in a high detection sensitivity. This enables a scatter-properties analysis of each single particle and allows the detection of even the smallest drizzle droplets. FD70 Series product models: FD71 for visibility FD71P for visibility, present weather, and precipitation Features Reports visibility up to 100 km (62 mi) Disdrometer features: droplet size distribution, reflectivity Reports precipitation type, intensity, and accumulation Exceptional detection sensitivity Optimal forward scatter angle 42° Look-down geometry to minimize measurement disturbances Ethernet connectivity and sophisticated software security features + Show more Key Benefits Replace up to 4 separate sensors • Rain gauge • Disdrometer • Visibility and present weather sensor • Freezing rain sensor Outstanding weather type identification • Reliable identification of even the most challenging precipitation types such as freezing rain, hail and ice pellets • Excellent precipitation accumulation performance • Reports droplet size distribution and reflectivity • Extensive reporting of METAR, SYNOP and NWS weather codes Minimized disturbances for constant performance • Window contamination compensation • Look-down geometry to protect from wind driven contaminants and light • Insect filtering algorithm for flying insects • Nearly maintenance free Accurate response to changing weather • Detects onset of precipitation right from the first droplets • Fast reaction to changes in MOR (range: 1 m... 100 km) • Reliable RVR in all operating conditions • Visibility traceable back to reference transmissometer High data availability for 24/7 operations • Advanced self diagnostics • Remote monitoring • Software security features • Easy to use graphical user interface Possible problems can be solved quickly • Modular design of the product – fast repair times • Good availability of spare parts • Dedicated technical support organisation • Calibration and repair services Downloads Datasheet (178.82 KB) Forward Scatter FD70 Series Download the Datasheet Datasheet: Forward Scatter FD70 Series (178.82 KB) Brochure: Forward Scatter FD70 Brochure in English (1.65 MB) All downloads Product Resources Watch the video Vaisala Forward Scatter FD70 Series Vaisala Forward Scatter FD70 Series Read more Watch the video Vaisala Present Weather Sensor FD71P Vaisala Present Weather Sensor FD71P Read more Need support? Sign up for news Contact us
