NRG Systems

WindSensor P2546-OPR Anemometer

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

  MEASNET CALIBRATED (#6625) MEASNET CALIBRATED (#16401)
Description  
Sensor type 3-cup anemometer 3-cup anemometer
Applications
  • Wind resource assessment
  • Meteorological studies
  • Environmental monitoring
  • Wind resource assessment
  • Meteorological studies
  • Environmental monitoring
Sensor range 0 m/s to 75 m/s (0 mph to 168 mph) 0 m/s to 75 m/s (0 mph to 168 mph)
Instrument compatibility All NRG Data Loggers All NRG Data Loggers
Input signal  
Signal type (sensor output)
  • NPN open collector, frequency proportional to wind speed
  • NPN open collector, frequency proportional to wind speed
Output signal  
Anemometer Transfer Function
  • Refer to individual calibration report for transfer function.
  • Refer to individual calibration report for transfer function.
Output voltage at threshold
  • 80 mV (peak-to-peak) minimum
  • 80 mV (peak-to-peak) minimum
Output voltage at 60Hz
  • 14 V (peak-to-peak) typical
  • Output amplitude NOT proportional to wind speed
  • 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)
 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
  • 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.
 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) < 0.4 m/s (0.9 mph)
Distance constant (63% recovery) 1.81 ± 0.04 m (5.94 ± 0.13ft ) 1.81 ± 0.04 m (5.94 ± 0.13ft )
Moment of inertia 1.01 × 10-4 kg-m2 (7.45 × 10-5 S-ft2 ) 1.01 × 10-4 kg-m2 (7.45 × 10-5 S-ft2 )
Swept diameter of rotor 187 mm (7.36 inches) 187 mm (7.36 inches)
Installation  
Mounting Onto a 25 mm (0.984 inch) diameter mast with two set screws Onto a 25 mm (0.984 inch) diameter mast with two set screws
Tools required 4mm Allen wrench 4mm Allen wrench
Environmental  
Operating temperature range -35 °C to 60 °C (-31 °F to 140 °F) -35 °C to 60 °C (-31 °F to 140 °F)
Operating humidity range 0 to 100% RH 0 to 100% RH
Physical  
Connections Push-pull connector (purchased separately) Push-pull connector (purchased separately)
Weight 0.36 kg (0.8 pounds) 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
  • 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 Robust one-piece injection molded polycarbonate/glass blend
Body Anodized aluminum Anodized aluminum
Shaft Stainless steel Stainless steel
Bearing Stainless steel ball bearings Stainless steel ball bearings
Magnet One permanent ring magnet One permanent ring magnet

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