Vaisala AWS520 Technical data

www.vaisala.com

Vaisala Fixed Site Observation System AWS520

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

The AWS520 has been selected by the US Air Force for their OS21 fixed base system program.

Features

Cost-eective stand-alone

▪

weather observation and reporting system for real-time aviation applications

Aviation support for defense

▪

operations at uncategorized airports, helipads, small unmanned landing strips and test / training ranges

Signiﬁcant aviation weather

▪

parameters are measured by one compact unit installed on a pole mast

Accurate measurements with

▪

built-in data validation

Large variety of dierent

▪

sensors and telemetry options

Suitable for harshest arctic and

▪

coastal locations

Ease of use with advanced

▪

display products

Core measurement unit in

▪

FMQ-22 for US Air Force OS21 ﬁxed based system program

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. The mast tubes are made of anodized aluminum and painted with aviation specic colors. All remaining parts of the main assembly are made of acid-proof stainless steel to resist weathering. One person can quickly and safely tilt the mast to install and maintain the sensors and other equipment. The base of the mast is set on a single concrete pad making the installation easy and economical.

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

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.

Technical data

General

Data Collection Platform Vaisala Data Logger QML201A Temperature

Operating *) -50 ... +60 °C (-58 ... 140 °F) Storage -50 ... +70 °C (-58 ... 158 °F) Humidity 0 ... 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 ... 264 VAC, 45 ... 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

Data validation, calculations and reports **)

Data quality control 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

Standard communication options **)

Satellite communication Iridium, Inmarsat-C Wireless communication UHF, VHF, Voice radio, GSM, GPRS Landline communication 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

Standard sensor options **)

COMMERCIAL-OFF-THE-SHELF (COTS) SENSOR*** OPTIONS FOR AWS520:

Vaisala WINDCAP® Ultrasonic Wind Sensor

Wind speed & direction WS425

Vaisala HUMICAP Temperature Sensor

Air temperature, relative humidity & dew point QMH102M

Vaisala BAROCAP

Atmospheric pressure PTB220/PTB330

Vaisala Precipitation Sensor

Rain/precipitation QMR102, RG13

Vaisala Visibility and Present Wear Sensor

Visibility & present weather PWD22

Vaisala Ceilometer

Cloud height & coverage/vertical visibility CL31

Vaisala Thunderstorm Sensor

Lightning SA20MP Core measurement unit in FMQ-22 for US Air Force OS21 ﬁxed based system program

Relative Humidity and

Pressure Sensor

For more information, visit www.vaisala.com or contact us at sales@vaisala.com

This material is subject to copyright protection, with all copyrights retained by Vaisala and its individual partners. All rights reserved. Any logos and/or product names are trademarks of Vaisala or its individual partners. The reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly prohibited. All speciﬁcations — technical included — are subject to change without notice.