WINDSENSOR P2546-OPR ANEMOMETER

WINDSENSOR P2546-OPR ANEMOMETER

WINDSENSOR P2546-OPR ANEMOMETER

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

ILS

Originally designed for marine environments, the P2546-OPR is ideally suited for wind resource assessment and power performance studies both onshore and off.

There are three versions of the P2546-OPR sensor: the P2546C-OPR (coil version), the P2546D-OPR (electronic version) and the P2546A-OPR (reed switch). Both versions of the sensor are fully compatible with all Symphonie series data loggers. However, NRG discontinued sales of the P2546A-OPR Anemometer as of July 2017 due to restrictions related to its mercury content. You will need to use Signal Conditioning Modules (SCM) when connecting more than six anemometers to a SymphoniePLUS®3 Data Logger; please see the table below for details. These sensors can also be integrated seamlessly with our .

SIGNAL CONDITIONING MODULE COMPATIBILITY
Sensor ModelSymphonie Logger ModelSignal Conditioning Module
P2546A-OPRSymphoniePLUS3 and olderSCM #3151 | Digital Anemometer
 SymphoniePRONone required
P2546C-OPRSymphoniePLUS3 and olderSCM #3148 | Coil Anemometer
 SymphoniePRONone required
P2546D-OPRSymphoniePLUS3 and olderSCM #3148 | Electronic Anemometer
 SymphoniePRONone required

Note: The P2546A-OPR contains 40mg of mercury and is no longer available for sale from NRG. We will reclaim and recycle the P2546A-OPR for our customers at no cost. For more information, please read our Recycling Return Policy.

BENEFITS

  • One-piece rotor anemometer head (OPR)
  • Durable construction with anodized aluminum and stainless steel
  • Low threshold speed
  • Low distance constant
  • Negligible overspeeding
  • Angular response independent of wind speed
  • Fully tested temperature performance
  • Symmetrical geometry
  • No external power source
  • MEASNET calibrated

SPECIFICATIONS PRINT SPECS

 MEASNET Calibrated (#6625)MEASNET Calibrated (#16401)MEASNET Calibrated, SOH WE + CPH (#16368)MEASNET Calibrated, DWG (#16370)
DESCRIPTION 
Sensor type3-cup anemometer3-cup anemometer3-cup anemometer3-cup anemometer
ApplicationsWind resource assessmentMeteorological studiesEnvironmental monitoringWind resource assessmentMeteorological studiesEnvironmental monitoringWind resource assessmentMeteorological studiesEnvironmental monitoringWind resource assessmentMeteorological studiesEnvironmental monitoring
Sensor range0 m/s to 75 m/s (0 mph to 168 mph)0 m/s to 75 m/s (0 mph to 168 mph)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 compatibilityAll NRG Data LoggersAll NRG Data LoggersAll NRG Data LoggersAll NRG Data Loggers
INPUT SIGNAL 
Signal type (sensor output)NPN open collector, frequency proportional to wind speedNPN open collector, frequency proportional to wind speedNPN open collector, frequency proportional to wind speedNPN open collector, frequency proportional to wind speed
OUTPUT SIGNAL 
Anemometer Transfer FunctionRefer to individual calibration report for transfer function.Refer to individual calibration report for transfer function.Refer to individual calibration report for transfer function.Refer to individual calibration report for transfer function.
Output voltage at threshold80 mV (peak-to-peak) minimum80 mV (peak-to-peak) minimum80 mV (peak-to-peak) minimum80 mV (peak-to-peak) minimum
Output voltage at 60Hz14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed
CalibrationEach anemometer individually calibrated, calibration reports provided via electronic downloadNonlinearity <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 downloadNonlinearity <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 at SOH WE, Williston, VT USA. Calibration reports provided via electronic download.Each anemometer individually calibrated at DWG, Varel, DE. Calibration reports provided via electronic download.
Output signal range0 Hz to 120 Hz0 Hz to 120 Hz0 Hz to 120 Hz0 Hz to 120 Hz
UncertaintyIEC 61400-12-1 ClassificationClass 1.32AClass 3.71BClass 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 ClassificationClass 1.32AClass 3.71BClass 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 ClassificationClass 1.32AClass 3.71BClass 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 ClassificationClass 1.32AClass 3.71BClass 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)< 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 )1.81 ± 0.04 m (5.94 ± 0.13ft )1.81 ± 0.04 m (5.94 ± 0.13ft )
Moment of inertia1.01 × 10-4 kg-m2 (7.45 × 10-5 S-ft2 )1.01 × 10-4 kg-m2 (7.45 × 10-5 S-ft2 )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 rotor187 mm (7.36 inches)187 mm (7.36 inches)187 mm (7.36 inches)187 mm (7.36 inches)
INSTALLATION 
MountingOnto a 25 mm (0.984 inch) diameter mast with two set screwsOnto a 25 mm (0.984 inch) diameter mast with two set screwsOnto a 25 mm (0.984 inch) diameter mast with two set screwsOnto a 25 mm (0.984 inch) diameter mast with two set screws
Tools required4mm Allen wrench4mm Allen wrench4mm Allen wrench4mm 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)-35 °C to 60 °C (-31 °F to 140 °F)-35 °C to 60 °C (-31 °F to 140 °F)
Operating humidity range0 to 100% RH0 to 100% RH0 to 100% RH0 to 100% RH
PHYSICAL 
ConnectionsPush-pull connector (purchased separately)Push-pull connector (purchased separately)Push-pull connector (purchased separately)Push-pull connector (purchased separately)
Weight0.36 kg (0.8 pounds)0.36 kg (0.8 pounds)0.36 kg (0.8 pounds)0.36 kg (0.8 pounds)
Dimensions3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height
MATERIALS 
CupsRobust one-piece injection molded polycarbonate/glass blendRobust one-piece injection molded polycarbonate/glass blendRobust one-piece injection molded polycarbonate/glass blendRobust one-piece injection molded polycarbonate/glass blend
BodyAnodized aluminumAnodized aluminumAnodized aluminumAnodized aluminum
ShaftStainless steelStainless steelStainless steelStainless steel
BearingStainless steel ball bearingsStainless steel ball bearingsStainless steel ball bearingsStainless steel ball bearings
MagnetOne permanent ring magnetOne permanent ring magnetOne permanent ring magnetOne permanent ring magnet

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