Heated Anemometer

WindObserver 75

  • Heating Power 7A @24VAC or DC (1W/cm²)
  • 0-75m/s Wind Speed Range
  • 0-359° Wind Direction Range (no dead band)
  • Calibration Traceable to NAMAS Standards
  • IP66 Rated Stainless Steel Construction
heated anemometer

Heated Anemometer - WindObserver 75

The WindObserver 75 has been developed for measuring higher wind speeds in extreme weather environments featuring 150 Watts of electrical heating power in the anemometer head. This anemometer has been designed to remain ice free in most freezing weather conditions. 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 - 75 m/s (0-168mph) 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.

Heated Anemometer Technical Information

  • Key Features
  • Specifications
  • Documentation
  • Part Numbers
  • Heating power 7A @ 24VAC or DC (1W/cm²)
  • Calibration traceable to NAMAS standards
  • 0-75m/s wind speed range
  • IP66 rated stainless steel construction
  • 0-359° wind direction range (no dead band)
  • Optional base mounts/cable exit
  • Wind speed accuracy for turbine control ±1% within ±25º of datum
  • Averaging/gusts to WMO guidelines
Wind Speed
Range
0-75m/s (0-168mph)
Starting Threshold
0.01 m/s
Accuracy
±2% @ 12 m/s (1% for turbine control)
Resolution
0.01 m/s
Offset
±0.01 m/s
Wind Direction
Range
0-359º
Dead Band Direction
None
Accuracy
±2° @ 12 m/s (1° for turbine control)
Resolution
Measurement
Ultrasonic Output Rate
1-4 Hz
Parameters
UV, Polar, NMEA
Units
m/s, knots, mph, kph, ft/min
Average (Selectable)
Rolling Average - 2, 2, 10 min, Gust - 3s
Block Average
0-3600s
Power Requirement
Anemometer only
9-30VDC (60mA max, 50mA average)
Heating
Max 7A @24 VAC or DC
Digital Output
Communication (Operation)
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
381mm x 213mm
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 (with heating)
Precipitation
300mm/hr
EMC
EN 61326-1: 2006, EN 55011: 2007
Icing
MILSTD810F Method 521.1 Procedure 1
Approvals
Standards
Traceable to NAMAS standards
Site Calibration
None required. Integrity Check Unit (zero wind) Supplied as Optional Extra
WindObserver75 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

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