WindSensor P2546-OPR Anemometer

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

Product Configurations

WindSensor P2546A-OPR Anemometer | MEASNET Calibrated

Reed switch version

WindSensor P2546C-OPR Anemometer | MEASNET Calibrated

Coil version



Details

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

RNRG offers two versions of the P2546-OPR sensor: the P2546C-OPR (coil version) and the P2546A-OPR (reed switch). Both versions of the sensor are fully compatible with all Symphonie series data loggers. 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 NOW Systems.



Signal Conditioning Module Compatibility

Sensor ModelSymphonie Logger ModelSignal Conditioning Module
P2546A-OPR SymphoniePLUS3 and older SCM #3151 | Digital Anemometer
  SymphoniePRO None required
P2546C-OPR SymphoniePLUS3 and older SCM #3148 | Coil Anemometer
  SymphoniePRO None required

Benifits

  • 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

  WindSensor P2546A-OPR Anemometer | MEASNET Calibrated (#4333) WindSensor P2546C-OPR Anemometer | MEASNET Calibrated (#6625)
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 RNRG Data Loggers All RNRG Data Loggers
Output signal
Signal type
  • Potential-free contact closure
  • Duty cycle 40-60%
  • Max switching voltage 30 V
  • Max recommended switching current 10 mA
  • Series resistance 330 Ω,1 W
  • Low level AC sine wave, frequency linearly proportional to wind speed
Anemometer Transfer Function
  • Refer to individual calibration report for transfer function.
  • Refer to individual calibration report for transfer function.
Output voltage at threshold n/a
  • 80 mV (peak-to-peak) minimum
Output voltage at 60Hz n/a
  • 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 112 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 Two permanent magnets One permanent ring magnet

Downloads

For Software downloads and details click here