Product Description
Vaisala Present Weather Sensor FS11P
- Measures visibility up to 75 km
- Detects precipitation type and intensity
- Well suited for synoptic and aeronautical applications
- The most widely proven forward scatter RVR sensor, selected and used by FAA
- Meets FAA and ICAO specifications for RVR and visibility measurement
- The most widely proven present weather sensing technology
- Minimal maintenance needs
- Meets ICAO frangibility standards
Scientifically valid chain of calibration Every Vaisala FS11P is calibrated through a scientifically valid chain of reference. The scattering response of the calibration device can be clearly traced to a reference FS11 visibility sensor, which is in continuous operation at Vaisala outdoor test field along with reference transmissometers and other instrumentation. The visibility measurement of the FS11P is also traceable to FAA reference sensors. Low maintenance need The FS11P incorporates a new technique that measures and compensates for window contamination. It ensures unparalleled measurement accuracy throughout the interval between window cleanings. It also enables much longer window cleaning intervals than the former RVR visibility sensors. The unique system works by monitoring the total reflectance of the window surface. It automatically compensates for visibility measurement errors caused by window contamination. The sophisticated self-diagnostics and modular design allow for very short service times. The visibility measurement fork, present weather detector, and optional background luminance meter are independent instruments that can be replaced quickly as pre-calibrated spare parts.
