AWOS Airport Anemometer

Aviation Standard WindObserver™

  • Precision 2-axis Ultrasonic Wind Speed Sensor
  • Accepted by FAA & CAA for Measurement of Surface Wind as Part of an AWOS
  • High Heating Power - Reliable Operation in Icy Conditions
airport Anemometer

Airport Anemometer for use with an AWOS

The Aviation Standard WindObserver has been accepted for service by both the FAA Federal Aviation Administration (USA) and the CAA Civil Aviation Authority (UK) for the observation and reporting of surface wind. This WindObserver meets the requirements of Annex 3 to the Convention on International Civil Aviation (ICAO) when supplied as part of a suitable Automated Weather Observing System (AWOS).

This variant of the WindObserver has been designed to remain ice free in most freezing weather conditions. With exceptionally high heating power the instrument is ideal for use in extreme conditions where performance and high reliability are paramount.

With 150 Watts of electrical heating producing 1 Watt/cm² and tested in accordance with MILSTD810F, the unit is particularly suited to operate as part of Aviation Automatic Weather Observing Systems which are often exposed to extreme weather conditions. Manufactured from stainless steel with no moving parts, the WindObserver is ideal for replacing mechanical anemometers, which require regular maintenance and calibration.

Airport Anemometer Technical Information

  • Features
  • Specifications
  • Documentation
  • 2-axis anemometer providing aviation wind speed and direction data
  • 0-75m/s wind speed
  • 0-359º wind direction range (no dead band)
  • Heating Power 7A @ 24VAC or DC (1W/cm²)
  • Accepted by FAA and CAA as part of an AWOS for reporting of aviation wind speed.
  • Calibration traceable to NAMAS standards
  • Free data logging software
  • Robust stainless-steel casing
Wind Speed Specifications
Range
0-75m/s
Starting Threshold
0.01m/s
Accuracy
±2% @ 12m/s
Resolution
0.01m/s
Offset
±0.01m/s
Wind Direction Specifications
Range
0-359º (no dead band)
Accuracy
±2% @ 12m/s
Resolution
Measurement
Ultrasonic Output Rate
1-4 Hz
Parameters
UV, Polar, NMEA
Units
m/s, knots, mph, kph, ft/min
Averaging
Flexible 1-3600 seconds
Power Requirement
Anemometer only
20-30VDC (60mA max, 50mA average)
Heating
Max 7A @ 24V AC or DC
Digital Output
Communication
RS422 / RS485 full duplex / half duplex
Baud Rates
1200, 2400, 4800, 9600, 19200, 38400
Formats
8 bit data; odd; even or no parity
Anemometer Status
Supplied as part of standard message
Mechanical
External Construction
316 Stainless Steel
Size
381mm x 213mm
Weight
1.4kg (without cable)
Environmental
Protection Class
IP66 (NEMA4X)
Humidity
<0% to 100% RH
Operating Temperature
-55ºC to +70ºC
Precipitation
300mm/hr
EMC
EN 61326-1: 2006, EN 55011: 2007
Icing
MILSTD810F Method 521.1 Procedure 1
Approvals
Acceptance
Accepted by FAA and CAA for the reporting of surface winds as part of a suitable AWOS (Automated Weather Observing System)
Standards
Traceable to NAMAS standards
Site Calibration
None required. Optional Integrity Check Unit (zero wind)

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Airport Anemometer Photos

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