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.
 

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    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
      • Repair Services 
        • Vaisala repair services include fault tracing and repair or replacement of failed components, as well as final testing to ensure your equipment is functioning properly. Repairs can be carried out on site or at one of our service centers.
      • Spare Parts 
        • Get rapid access to the spare parts you need to maximize the uptime of your equipment and ensure reliable and accurate operation. In addition to standard spare part delivery, we also offer an express service where parts are shipped within one business day.
      • 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. With Vaisala’s extended warranty, you get free repair or replacement for five years.
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