WindSensor P2546-OPR Anemometer

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

Details

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 NRG's suite of 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 when connecting more than six anemometers to a SymphoniePLUS3 Data Logger; please see the table below for details.

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

Brochures (1)

Brochure: WindSensor P2546-OPR

White Papers (1)

Summary of Cup Anemometer Classification - WindSensor P2546A-OPR + P2546C-OPR

Instruction Sheets (6)

FAQs (3)

Applications

Wind Resource Assessment

Recommended Items

Specifications Print Specs

Description
	MEASNET CALIBRATED (#6625)	MEASNET CALIBRATED (#16401)
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

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

Input signal

Signal type (sensor output)

NPN open collector, frequency proportional to wind speed

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

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

Input signal

Signal type (sensor output)

NPN open collector, frequency proportional to wind speed

Output signal

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

Product Support

Instruction Sheets (6)

FAQs (3)

Customer Service

+1 802-482-2255

Mon – Fri: 8:30am – 5:00pm Eastern Time (GMT-5)

Accessories

Boom Extensions

Extend and retrofit NRG booms to meet your project’s needs with our boom extensions and adapter kits.

WindSensor P2546-OPR Anemometer

Configuration Options

Details

Signal Conditioning Module Compatibility

Benefits

Brochures (1)

White Papers (1)

Instruction Sheets (6)

FAQs (3)

Applications

Wind Resource Assessment

Recommended Items

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Specifications Print Specs

Product Support

Instruction Sheets (6)

2.4 m (95”) Side Mount Boom Installation for Tube Towers

2.4m (95”) Lattice Booms – Single/180°/120°

WindSensor Boom Brace

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WindSensor P2546-OPR Anemometer: Wiring and Installation Information

WindSensor P2546A Anemometer Mercury (Hg) Regulatory Requirements

FAQs (3)

Connecting a Windsensor (RISO) P2546A Anemometer to Symphonie Loggers

Does a WindSensor P2546A anemometer require an iPack to work? How do I wire a WindSensor P2546A?

How do I test a WindSensor P2546A Anemometer?

Customer Service

+1 802-482-2255

Accessories

Boom Extensions