NRG Systems

WindSensor P2546-OPR Anemometer

The WindSensor P2546-OPR anemometer combines class 1 performance with unrivaled durability.

  MEASNET Calibrated (#6625)
Description  
Sensor type 3-cup anemometer
Applications
  • Wind resource assessment
  • Meteorological studies
  • Environmental monitoring
Sensor range 0 m/s to 75 m/s (0 mph to 168 mph)
Instrument compatibility All NRG Data Loggers
Output signal  
Signal type
  • Low level AC sine wave, frequency linearly proportional to wind speed
Anemometer Transfer Function
  • Refer to individual calibration report for transfer function.
Output voltage at threshold
  • 80 mV (peak-to-peak) minimum
Output voltage at 60Hz
  • 14 V (peak-to-peak) typical
  • Output amplitude NOT proportional to wind speed
Calibration Each anemometer individually calibrated, calibration reports provided via electronic download
  • Nonlinearity <0.04 m/s (0.09 mph)
  • Standard deviation of slope 0.027 m/s (0.060 mph)
  • Standard deviation of offset 0.014 m/s (0.031 mph)
Output signal range 0 Hz to 120 Hz
Uncertainty IEC 61400-12-1 Classification
  • Class 1.32A
  • Class 3.71B
    Class S numbers can be calculated for any combination of influence parametrs within the Class B influence parameter ranges using WindSensor's class calculator.
Response characteristics  
Threshold < 0.4 m/s (0.9 mph)
Distance constant (63% recovery) 1.81±0.04 m (5.94 ±0.13ft )
Moment of inertia 1.01× 10-4 kg-m2 (7.45 × 10-5 S-ft2 )
Swept diameter of rotor 187 mm (7.36 inches)
Installation  
Mounting Onto a 25 mm (0.984 inch) diameter mast with two set screws
Tools required 4mm Allen wrench
Environmental  
Operating temperature range -35 °C to 60 °C (-31 °F to 140 °F)
Operating humidity range 0 to 100% RH
Physical  
Connections Push-pull connector (purchased separately)
Weight 0.36 kg (0.8 pounds)
Dimensions
  • 3 cups of conical cross-section
  • 70 mm (2.76 inches) dia.
  • 282 mm (11.10 inches) overall assembly height
Materials  
Cups Robust one-piece injection molded polycarbonate/glass blend
Body Anodized aluminum
Shaft Stainless steel
Bearing Stainless steel ball bearings
Magnet One permanent ring magnet

NRG Systems • 110 Riggs Road • Hinesburg, Vermont 05461 • +1 802-482-2255 • info@nrgsystems.com