MeteoWind 2 (201710)

Anemometer with a wind vane. Exceeds WMO and MEASNET Class 1 accuracy standards for meteorology & wind resource assessment.

 

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MeteoWind 2

Anemometer with a wind vane. Exceeds WMO and MEASNET Class 1 accuracy standards for meteorology & wind resource assessment. Very low 4mA combined power consumption and integrated triple layer lightning & surge protection for reliable
operation. Protected oversize bearings with high dirt and weather resistance proven to provide long-term measurement stability & reliability in dirty & dusty environments.

 

Serviceable bearing & cups with high dirt resistance

• Serviceability of rotor bearing, anemometer cups and wind vane
• Special double-arm reinforced cup design with over-size bearings for robustness.
• Highest level of 3 stage lightning, EMC, Surge & ESD protection
• Industry standard RS-485 output
• Simple & robust MODBUS RTU and ASCII communication protocol is user selectable
• Long-term tested dirt resistance in highly dusty environments with salt-spray
• All models feature a weather proof locking bayonet connector.

Dual arm reinforced cup design for all weather reliability

• WMO & MEASNET conforming wind speed and direction.
• 10Hz sampling rate to accurately capture wind gusts.
• Fast response and minimal over-speeding for accurate
wind gust measurement.
• Robust two arm reinforced rotor cup design
• Special flat elliptical cups offer superb snow shedding
with very good hail resistance
• All-metal replaceable wind direction vane.
• Strong all-metal anodized-aluminum body

Measurement standards of anemometer & wind vane
Range Resolution Accuracy Sampling rate
Wind speed 0-80 m/s gust 0.01m/s < 1% of measured value (0.3 – 50 m/s) or < ±0.2 m/s ±0.05m/s (4-16m/s) with MEASNET CALIBRATION 10Hz @ 3 pulses per revolution
Wind direction 0-360° 2° (no dead-spot) 10Hz
Linearity R2 > 0.99995 MEASNET/IEC 61400-12-1:2005
Tilt angle sensitivity Cosine response, see graph. (Horizontal wind speed measurement)
Starting wind speed <0.3m/s
Default linearity constants (Calibration equation coefficients) Defaults: Slope = 0.43 m/s | Offset = 0.33 m/s (m/s = 0.43*freq(Hz) + 0.33)For MEASNET accuracy without calibration: Slope = 0.4341 m/s | Offset = 0.3054 m/s
Distance constant (Delay distance) <3m (est.) (per ASTM D 5096-96)
Electrical specifications of anemometer & wind vane
Output signal & communication RS-485 with Modbus RTU & ASCII
Supply Voltage 5…24VDC with inrush protection & reverse polarity protection
Power consumption 2.6mA @12V (combined wind speed & direction at 10Hz sampling including RS-485 coms)
Lightning & surge protection per IEC EN 61000-4-5 on both data & power lines, Surge, EFT/Burst, ESD 15kV
Environmental rating of anemometer & wind vane
Operating temperature -40°C to +80°C
Operating humidity range 0% to 100% RH
Survival wind speed >90m/s (324kph, 200mph)
Connection Bayonet connector with silicone o-ring
IP – Protection rating IP55W (DIN 40050)
General anemometer & wind vane specifications
Heater (optional) 20W (1.1A) @ 24VDC (5W @ 12VDC), User selectable manual or automatic heater control
Weight (mass) Anemometer = aprox. 300g (without stainless steel mount)
Dimensions Anemometer rotor diameter = Ø164mm, Wind vane radius =136mm, Total height = 320mm
Patented / Registered OHIM 002153882-0001, 002153882-0002, 002153882-0003
Mounting two M4 screws with supplied holder as pictured below