Vaisala Forward Scatter FD70 series upgrade

Drawing on 80 years of research and development, Vaisala FD70 Series represents the newest generation of visibility and present weather sensor technology for airport weather reporting. It´s unique, single-particle analysis offers unmatched data accuracy for airports of all sizes.

Contact us for a free FD70 upgrade evaluation

Overview

The Vaisala Forward Scatter FD70 Series provides highly accurate meteorological visibility assessment for precision RVR. FD70’s superior detection sensitivity never misses a weather event and offers enhanced detection of all present weather types, including hail, freezing rain and freezing fog.

The sensor design utilizes look-down geometry and hood heating to protect against snow clogging and other contaminants. Self-diagnostics along with window contamination detection and compensation ensure continuous data accuracy and long maintenance intervals. Future-proof, professional software security with updates and encrypted communication ensures that your sensor fulfils your airport’s needs both today and in the future.

The advanced forward-scatter technology, low lifecycle cost, and ability to improve airport safety and operational capacity make the FD70 series sets a new industry standard.

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Key benefits

Trustworthy data for safe takeoff and landing

Single particle analysis calculates true visibility for improved reliability and accuracy in all conditions. Reliable and fast identification of challenging precipitation, such as freezing rain, hail and ice pellets.

Reliable visibility reporting in all conditions

Continuous calibration chain, traceable back to reference transmissometer for measurement consistency.

Consistent measurement performance

Down-looking geometry protects sensor from disturbances such as direct sun and contaminants, while the open design prevents splashing.

Up to 180 days maintenance free operation

Proven design and intelligent window contamination compensation algorithm. No movable or consumable parts and remote monitoring capabilities decrease maintenance requirements.

Upgrade path FD12 to FD70 graphic image

Comparison Table

Feature	FD71P	FS11P	FD12P
Technology	Forward scatter with single thin light sheet	Forward scatter with conventional light cone and separate present weather detector including the capacitive rain sensor	Forward scatter with conventional light cone and capacitive rain sensor
Visibility range (MOR)	1m... 100 km	5m... 75 km	10m... 50 km
Present weather type identification	11 types	7 types	11 types
Window contamination compensation	Yes	Yes	No
Look-down geometry	Yes	Yes	Yes
Droplet size distribution and reflectivity reporting	Yes, from 0.1mm to 35mm in diameter	No	No
Ethernet port	Yes	No	No
Professional software security	Yes	No	No
Insect filtering algorithm	Yes	No	No
PC software for maintenance with graphical user interface	Yes	No	No
Traceable rain calibration chain	Yes	No	No
Duplicated data output	Yes	No	No

Introducing the Vaisala 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.

Vaisala Forward Scatter FD70 Series combines forward scatter and optical disdrometer technologies. It sets a new standard in precipitation identification and quantification while offering best-in-class visibility determination.

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