Detailed instructions for use are in the User's Guide.
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Vaisala Fixed Site Observation System AWS520
The AWS520 has been selected by the US Air Force for their OS21 fixed base system program.
Features
Compact and robust
The Vaisala Fixed Site Observation System AWS520 offers high performance in a very compact package, integrated upon a steady 10 meter pole mast. [. . . ] 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 satellite telemetry, LAN, hardwire modem to a standard laptop PC provided with software to display numerical and graphical data and code automatically METAR and SPECI aviation weather reports. A weatherresistant pocket PC with graphical display software is available as an easy-to-use local display and maintenance terminal.
Field-proven quality measurements
The AWS520 is equipped with builtin algorithms to ensure the quality of each measurement and a testing system to continuously check the correct operation of the hardware. For each parameter, tests are carried out on the minimum, maximum and step limits. For regional, national and international airports Vaisala recommends use of Vaisala AviMet® Automated Weather Observing System (AWOS) conforming to applicable ICAO and WMO recommendations.
Aviation meteorological support
The AWS520 measures the meteorological parameters needed in aviation including wind speed and direction (Gust and Squall), atmospheric pressure (QFF, QFE, QNH, pressure tendency), air
Technical data
General
Data Collection Platform Vaisala Data Logger QML201A Temperature Operating *) -50 . . . 100 % RH EMC In compliance with EN 61326-1 (2001-12) Electrical equipment for measurement, control and laboratory use - EMC requirements - for use in industrial locations IP rating NEMA 4X/IP-66 Materials Acid-proof stainless steel 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 **) 90 . . . 65 Hz Internal battery 12 Ah/12 V Battery regulator Charge/recharge control Temperature compensation Deep discharge protection Simultaneous inputs from solar and AC power allowed
Standard communication options **)
Iridium, Inmarsat-C UHF VHF Voice radio, GSM, GPRS , , RS232, RS485 bus, PSTN, Fixed line, LAN, Optical fibre Data displays DD50*, WD30(TU)*, WD50*, 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 ***) Further technical information available on individual product-specific datasheets Satellite communication Wireless communication Landline communication
Standard sensor options **)
CommerCial-off-the-Shelf (CotS) SenSor*** optionS for aWS520:
Vaisala WINDCAP® Ultrasonic Wind Sensor Wind speed & direction Vaisala HUMICAP® Relative Humidity and Temperature Sensor Air temperature, relative humidity & dew point Vaisala BAROCAP Pressure Sensor
®
WS425
Data validation, calculations and reports **)
Upper/lower climatological limits Step change validation Sensor status indication Statistical calculations 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 Data quality control
QMH102M PTB220/PTB330 QMR102, RG13 PWD22 CL31 SA20MP
Atmospheric pressure Vaisala Precipitation Sensor Rain/precipitation Vaisala Visibility and Present Wear Sensor Visibility & present weather Vaisala Ceilometer Cloud height & coverage/vertical visibility Vaisala Thunderstorm Sensor Lightning Core measurement unit in FMQ-22 for US Air Force OS21 fixed based system program
for more information, visit www. vaisala. com or contact us at sales@vaisala. com
ref. [. . . ] all specifications -- technical included -- are subject to change without notice. [. . . ]