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R3-100™ Research Anemometer
The R3-100 anemometer is ideal for scientific research applications, with a fast sampling rate of 100Hz. This 3-axis ultrasonic anemometer is used extensively for the determination of fluxes using the Eddy Covariance method.
R3-100 will monitor wind speeds of 0-45m/s at environmental operating temperatures of -40ºC to +60ºC. Analogue, sonic temperature, speed of sound and U,V,W vector outputs are provided as standard, with optional analogue and PRT inputs available.
The R3-100 offers class-leading 3-axis wind measurement in a robust aluminium/carbon fibre construction. This anemometer is also available with an asymmetric sensor head for minimal flow disturbance, more information can be found on the R3A-100 page.
R3-100 Research Anemometer Technical Information
- Features
- Specifications
- Documentation
- 3-axis sonic anemometer providing wind speed and direction data
- 100Hz Data Output Rate
- 0-45m/s wind speed
- 0-359º wind direction range (no dead band)
- Ideal for Eddy Covariance Studies
- Free data logging software
- U, V, and W vector outputs
- Speed of sound and sonic temperature outputs
- Robust aluminium/carbon-fibre casing
Wind Speed Specifications
Range
0-45m/s
Accuracy
<1.0% RMS
Resolution
0.01m/s
Wind Direction Specifications
Range
0-359º
Accuracy
<±1.0º RMS
Resolution
1º
Speed of Sound
Range
300 - 370m/s
Resolution
0.01 m/s
Accuracy
< ±0.5% @ 20ºC
Measurement
Ultrasonic Output Rate
100Hz
Output Formats
UVW, Speed of Sound
Digital Output
Communication
RS422 full duplex, 8 data bits, 1 stop bit, no parity
Baud Rates
2400 - 115200
Output Rate
Selectable 0.4 to 100Hz
Analogue Outputs (via supplied PCIA unit)
Quantity
7 (U,V,W, SOS, PRT plus 2 analogue inputs)
Sampling
±10, ±20, ±30, ±60 m/s
Update Rate
0.4 to 100Hz
Range and Resolution
±2.5V, 14 bits
Accuracy
<0.25% of FSR
Analogue Inputs (via optional SIU)
Quantity
6 differential inputs
Sampling Rate
100Hz
Range and Resolution
±5V, 14 bits
Accuracy
<0.1% of FSR
PRT Input (via optional IU, PRT100 not included)
Input Resolution
0.01ºC
Input Accuracy
<0.01ºC (0ºC to +50ºC)
<0.15ºC (-40º to +60ºC)
<0.15ºC (-40º to +60ºC)
Inclinometer (optional)
Range and Resolution
±20ºC, 0.01º
Null Repeatability
±0.15º
Accuracy
±0.3º (-10º to +10º of inclination)
Power Requirement
Anemometer
9-30V DC <4W (<150mA @ 24V DC or 300mA @ 12V DC)
Mechanical
Material
Aluminium / Carbon Fibre
Weight
1.0 Kg
Size
750mm x 240mm
Environmental
Protection Class
IP65
Operating Temperature
-40ºC to +60ºC
Precipitation
300mm/hr
EMC
Emissions BS EN 50081-1 : 1992 (Emissions)
Immunity BS EN 50082-1 : 1997 (Immunity)
Immunity BS EN 50082-1 : 1997 (Immunity)
