Vaisala Visibility Sensor FS11

  • Specially built for Runway Visual Range (RVR) applications
  • Meets FAA and ICAO specifications for RVR and visibility measurement
  • Accurate and traceable measurement
  • Mechanical design and high-power heating follow FAA guidelines
  • Can also be used for aeronautical and SYNOP visibility measurements
Technical Specifications
Visibility (MOR) measurement
Measurement range (MOR)5...75 000 m with 1, 3 and 10-minute averaging
+10 % range 5...10 000 m
Accuracy±20 % range 10 000...75 000 m
Scattering angle42°
Optical monitoringWindow contamination measurement and compensation circuitry
Optical path blockage detection
Light source stability control
Operating environment
Temperature-40...+65 °C
Humidity0...100 %RH
Wind60 m/s
Inputs and outputs
Operating voltage100/115/230 VAC +/-10 %, 50-60 Hz
Power consumption300 W maximum (60 VA + 240 VA defrosting heaters)
OutputsSerial line RS-232 or opto-isolated RS-485 (2-wire) or optinal data modem Separate RS-232 maintenance line
Dimensions2.8 (h) x 0.9 (w) x 0.5 (d) m
Weight37 kg, including interface unit, mast and base plate
For complete specifications, please see the brochure or user guide in "Documents".
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