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 Model | Symphonie Logger Model | Signal 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 | |
P2546D-OPR | SymphoniePLUS3 and older | SCM #3148 | Electronic Anemometer |
SymphoniePRO | None 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) | |
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DESCRIPTION | ||||
Sensor type | 3-cup anemometer | 3-cup anemometer | 3-cup anemometer | 3-cup anemometer |
Applications | Wind resource assessmentMeteorological studiesEnvironmental monitoring | Wind resource assessmentMeteorological studiesEnvironmental monitoring | Wind resource assessmentMeteorological studiesEnvironmental monitoring | Wind resource assessmentMeteorological studiesEnvironmental 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) | 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 | 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 | 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. | 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 | 80 mV (peak-to-peak) minimum | 80 mV (peak-to-peak) minimum |
Output voltage at 60Hz | 14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed | 14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed | 14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed | 14 V (peak-to-peak) typicalOutput amplitude NOT proportional to wind speed |
Calibration | 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, 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 range | 0 Hz to 120 Hz | 0 Hz to 120 Hz | 0 Hz to 120 Hz | 0 Hz to 120 Hz |
Uncertainty | 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. | 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 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 ) | 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) | 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 | 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 | 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) | -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 | 0 to 100% RH | 0 to 100% RH |
PHYSICAL | ||||
Connections | Push-pull connector (purchased separately) | Push-pull connector (purchased separately) | Push-pull connector (purchased separately) | Push-pull connector (purchased separately) |
Weight | 0.36 kg (0.8 pounds) | 0.36 kg (0.8 pounds) | 0.36 kg (0.8 pounds) | 0.36 kg (0.8 pounds) |
Dimensions | 3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height | 3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height | 3 cups of conical cross-section70 mm (2.76 inches) dia.282 mm (11.10 inches) overall assembly height | 3 cups of conical cross-section70 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 | Robust one-piece injection molded polycarbonate/glass blend | Robust one-piece injection molded polycarbonate/glass blend |
Body | Anodized aluminum | Anodized aluminum | Anodized aluminum | Anodized aluminum |
Shaft | Stainless steel | Stainless steel | Stainless steel | Stainless steel |
Bearing | Stainless steel ball bearings | Stainless steel ball bearings | Stainless steel ball bearings | Stainless steel ball bearings |
Magnet | One permanent ring magnet | One permanent ring magnet | One permanent ring magnet | One permanent ring magnet |