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Vaisala Fixed Site Observation System AWS520

The AWS520 is a cost-effective stand-alone weather observation and reporting system for real time aviation applications for uncategorized airports, helipads, small unmanned landing strips, and test/training ranges.
    Overview

     Overview

      The AWS520 is a cost-effective stand-alone weather observation and reporting system for real time aviation applications for uncategorized airports, helipads, small unmanned landing strips, and test/training ranges. It offers high performance in a very compact package, integrated upon a steady pole mast:

      Key features
      • All significant aviation weather parameters measured by one compact unit installed on a 10 meter pole mast
      • Accurate measurements with built-in data validation
      • Large variety of different sensors and telemetry options
      • Suitable for the harshest arctic and coastal locations
      • Ease of use with advanced display products
      • Selected by the US Air Force for their OS21 Fixed Based System Program

      The AWS520 measures all the meteorological parameters needed in aviation including

      • Wind speed and direction (Gust and Squall)
      • Atmospheric pressure (QFF, QFE, QNH, pressure tendency)
      • Air temperature and humidity (dew point)
      • Precipitation accumulation
      • Cloud height and coverage
      • Visibility
      • Precipitation type and lightning

      The AWS520 is capable of reporting the prevailing weather conditions to pilots and other users by number of different media. Spoken weather reports are available through a voice module using a VHF radio transceiver or a public switch telephone line. The data reports can be also sent via hardwire modem to a standard laptop PC with software installed to display numerical and graphical data, and to automatically code METAR and SPECI aviation weather reports.

      A weather-resistant pocket PC with a graphical display software is available as an easy-to-use local display and maintenance terminal.
      Technical Specifications

       Technical Specifications

      General


      Data Collection Platform
      ​Vaisala Data Logger QML201A
      ​Temperature
      Operating *)

      ​-40 ... +50 °C (-40 ... 122 °F) without radio, -30 ...+45 °C (-22 ...113°F) with ICOM radio

      Storage
      ​-50 ... +70 °C (-58 ... 158 °F)
      Humidity
      5 ... 100 % RH
      EMC
      ​In compliance with EN 61326-1

      ​Electrical equipment for measurement, control and laboratory use

      ​- EMC requirements - for use in industrial locations
      ​IP rating ​IP-66
      ​Materials ​Stainless steel AISI316

      ​Painted aluminium

      ​Plastic
      ​Mast**) ​Tiltable 10 m (30 ft) pole mast
      Enclosure ​600 (H) x 400 (W) x 200 (D) mm
      ​Weight ​Enclosure approx 20 kg

      ​Mast with sensors approx 150 ... 200 kg
      ​Maximum wind speed ​With two sets of guy wires 75 m/s (130 kt)
      ​Powering **) ​EUR: 230V 50Hz US:115V 60Hz
      ​Internal battery
      ​12 Ah/12 V
      ​Battery regulator ​Charge/recharge control

      ​Temperature compensation

      ​Deep discharge protection

      Starting up time is 3 hours when the temperature is    -50°C and system does not contain radio (cold start).


      Data validation, calculations and reports **)

      ​Data quality control ​Upper/lower climatological limits

      ​Step change validation

      ​Sensor status indication
      ​Sensor status indication ​Averaging periods

      ​Minimum/maximum values

      ​Cumulative values
      ​Other calculations ​Dew point

      ​QNH, QFE, QFF, pressure tendency

      ​Gust, Squall

      ​Day/night visibility
      ​Weather data reports (w / AviMet or AOS sw) ​METAR and SPECI reports are ICAO compliant with AviMet software and AFMAN 15-111 compliant with AOS software

      Standard communication options **)



      ​Wireless communication Voice radio, GSM, GPRS
      Landline communication
      RS232, RS485 bus, Fixed line modem
      ​Data displays ​Pocket/Laptop/Tabletop PC
      The spoken weather reports via VHF radio or public switch
      telephone line

      ​*) For further extended range, please contact Vaisala
      ​**) For other calculation, reporting, mast, solar powering, sensor
      and communication options, please contact Vaisala
      Related Services
      • Warranty 
      • All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment.
      • Service Center Repair  
      • If your instrument requires repair.
      Documents