WindSensor P2546A-OPR Cup Anemometer
Overview
Discontinued
The WindSensor P2546A-OPR Cup Anemometer has been discontinued and is no longer available for purchase. Please use the P2546D-OPR electronic version as a direct replacement. See the technical note for replacing the P2546A-OPR reed switch version.
We also offer the P2546C-OPR coil version.
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 P2546A-OPR (reed switch version) features permanent magnets mounted on the shaft that activate a reed switch contact. This generates a potential-free switch signal with a frequency proportional to the wind speed.
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
- Calibration, mean value
- U = 0.620 × f + 0.21 [m/s]
- Variation of calibrations
- σ = 0.015 m/s @ 10 m/s
- Distance constant (63% recovery)
- 1.81 ± 0.04 m
- Starting threshold
- < 0.4 m/s
- Resolution
- 0.001 m/s @ 10-minute average mode
- Range
- 0…75 m/s
Output signal
- Signal type
- Switch closure, frequency proportional to wind speed
- Duty cycle
- 40…60 %
- Max switching voltage
- 30 V
- Max recommended switching current
- 10 mA
- Output resistance
- 330 Ω, 1 W
Accuracy
- Calibration uncertainty, uV1, k=1
- 0.28 % @ 4…16 m/s
- Classification uncertainty, uV2, k=1
Class number Operational standard uncertainty @ 10 m/s 1.32A 0.076 m/s 3.71B 0.214 m/s 1.54C 0.089 m/s 3.76D 0.217 m/s 0.03…3.76S 0.002…0.217 m/s
Power supply
- P2546A-OPR
- Self-excited, pull-up resistor of 10…100 kΩ required
Environmental
- Operating temperature range
- -38…60 °C
- Operating humidity range
- 0…100 % RH
- EMC compliance
- EN61326-1 Class A
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
- 0.40 kg
- Shipping weight / dimensions
- 1.15 kg / Cardboard box 360 × 230 × 210 mm
Installation
- Mounting
- Onto a 25 ±0.1 mm (0.984 inch) diameter tube with two set screws
- Tools required
- 4 mm Allen wrench (enclosed)
Documents
Specifications documents
Application notes
External documentation
To place an order or inquire about this product, please submit an online order or inquiry or contact us.