Heated Anemometer

WindObserver 90

  • 0-90m/s (201mph) Wind Speed Range
  • Anti-Icing Heating System
  • IP66 Rated Stainless Steel Construction
  • Recommended for Monitoring Extreme Wind Events
WindObserver 90 heated anemometer

Wind Speed Sensor - WindObserver 90

The WindObserver 90 has been developed for measuring the highest wind speeds in extreme weather environments such as typhoons and hurricanes and is available with optional heating. The sensor provides data via RS422/RS485 bidirectional link, which allows several units to be networked together and data logged on demand.

With innovative transducer design, this anemometer boasts a very high wind speed range of 0 – 90 m/s (0-201mph) and gives an output status indicating the validity of data, so that you can be confident that the instrument is providing accurate information. With an IP66 rated stainless steel construction, this anemometer meets the stringent performance criteria specified by wind turbine manufacturers, airports, marine, oil and gas production, and meteorological organisations around the world.

Below is an example of the excellent performance of the WO90 sensor as recently tested in the independent third party Deutsche WindGuard high speed tunnel in Bremerhaven, Germany. The graph shows the tunnel speed with some minor variations around 90 m/s with the WO90 producing very accurate data at this speed with errors no larger than +/- 2 m/s (roughly 2%) at this new benchmark for high speed wind sensing.

WindObserver 90 Heated Anemometer Technical Information

  • Key Features
  • Specifications
  • Documentation
  • Part Numbers
  • Data Graphs
  • Heating power 7A @ 24VAC or DC (1W/cm²)
  • IP66 rated stainless steel housing
  • 0-90m/s wind speed range
  • Connector or cable exit options
  • 0-359° wind direction range (no dead band)
  • Optional customer base mounts
  • Calibration traceable to NAMAS standards
Wind Speed Specifications
Range
0-90m/s (0-201mph) *
* measured at 45 degrees (between spars)
NB. maximum speed depends on conditions
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
±2º @ 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 - 30 VDC (60mA max, 50mA average)
Heating
Max 7A @24 VAC 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
Stainless Steel 316
Size
Refer to diagram overleaf
Weight
1.7kg (with 2m cable)
1.3kg (with connector)
Environmental
Protection Class
IP66 (NEMA4X)
Humidity
0% to 100% RH
Operating Temperature
-55ºC to +70ºC (heated option)
Precipitation
300mm/hr
EMC
EN60945:2002, EN61326-1:2013
Icing
MILSTD810F Method 521.2 Procedure I
Approvals
Standards
Traceable to NAMAS standards
Site Calibration
None required. Integrity check unit (Zero wind) supplied as optional extra
*Maximum speed depends on conditions
WindObserver Part Numbers & Options

All Gill WindObserver wind sensors follow the same part number convention, which is driven by the selected product options. Use the chart below to build your part number.

Part numbers explained diagram

WindObserver 90 Enquiry

Wind Speed Sensor Photos

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