WindSensor P2546D-OPR Cup Anemometer
Overview
The WindSensor P2546-OPR Cup Anemometer combines unrivaled performance with the only IEC 61400-12-1 compliant classification on the market. Originally designed for marine environments, the P2546-OPR is ideally suited for wind resource assessment and power performance studies both onshore and offshore.
The P2546D-OPR (electronic version) features permanent magnets mounted on the shaft that activate an electronic switching circuit. This generates an open collector output signal with a frequency proportional to the wind speed.
Please consider the P2546D-OPR as a direct replacement for the discontinued P2546A-OPR. See the technical note for replacing the P2546A-OPR reed switch version.
We also offer the P2546C-OPR coil version.
P2546-OPR features
- One-piece rotor anemometer head (OPR)
- Durable construction with anodized aluminum and stainless steel
- Low threshold speed
- Short distance constant
- Negligible overspeeding
- Angular response independent of wind speed
- Fully tested temperature performance
- Symmetrical geometry
- No external power source
- MEASNET calibrated
Specifications
Description
- Sensor type
- 3-cup anemometer
- Applications
- Wind resource assessment
Wind turbine power performance measurement
Meteorological and environmental monitoring
Response characteristics
- Calibration
- Each anemometer individually calibrated compliant with IEC 61400-12-1
- Transfer function
- U = 0.620 × f + 0.21 [m/s]
- Dispersion of transfer function
- σ = 0.0015 × U [m/s] @ U = 4…16 m/s
- Distance constant (63% recovery)
- 1.81 ± 0.04 m
- Starting threshold
- < 0.3 m/s
- Resolution
- 0.001 m/s @ 10-minute average mode
- Range
- 0…75 m/s
Output signal
- Signal type
- NPN open collector, frequency proportional to wind speed
- Duty cycle
- 45…55 %
- Max switching voltage
- 30 V
- Max switching current
- 10 mA
- Output resistance
- 60 Ω
- Pull-up resistor
- 100 kΩ max @ switching voltage = 5 V
10 kΩ max @ switching voltage > 5 V
Accuracy
- Calibration standard uncertainty, uV1
- 0.012…0.038 m/s @ 4…16 m/s
- Classification standard uncertainty, uV2
- Class 1.32A: 0.076 m/s @ 10 m/s
Class 3.71B: 0.214 m/s @ 10 m/s
Class 1.54C: 0.089 m/s @ 10 m/s
Class 3.76D: 0.217 m/s @ 10 m/s
Class 0.03…3.76S: 0.002…0.217 m/s @ 10 m/s
Power supply
- P2546D-OPR
- Self-excited, pull-up resistor of 10…100 kΩ required
Environmental
- Operating temperature range
- -40…60 °C
- Operating humidity range
- 0…100 % RH
- Compliance
- CE: EMC & RoHS, REACH, WEEE, FCC
Physical
- Exterior materials
- Anodized aluminum, stainless steel and GRP
- Mating cable connector
- Lemo E Series FFA.1E.650.CTAC45 (cable diameter 4.1…4.7 mm)
- Overall height
- 282 mm
- Swept diameter of rotor
- 188 mm
- Weight
- 0.36 kg
- Shipping weight
- 1.15 kg
- Shipping dimensions
- Cardboard box 360 × 230 × 210 mm
Installation
- Mounting
- Onto a 25.0 ±0.1 mm (0.984 inch) diameter mast with two set screws
- Tools required
- 4 mm Allen wrench (enclosed)
Documents
Specifications documents
Application notes
Compliance
To place an order or inquire about this product, please submit an online order or inquiry or contact us.