Thiết bị đo tốc độ gió P2546A-L
Thiết bị đo tốc độ gió P2546A-L

P2546A-L Three-Cup Anemometer with MEASNET Calibration

IEC 61400-12 Class 1 performance, ideal for wind-energy applications

9 ₫

The P2546A, manufactured by WINDSENSOR, is a Class 1 anemometer often used for wind speed resource assessment and wind turbine power performance monitoring. Wind speed is sensed by a three-cup rotor assembly. Magnets mounted on the shaft cause a switch to close and open two times per revolution. Our data loggers measure the switch closure and convert the signal to engineering units (mph, m/s, knots). The anemometer is mounted using the 27739 30-inch mounting pole. The P2546A comes with a MEASNET calibration certificate.

The P2546C (coil version) and P2546D (electronic version) are also available.

Note: The P2546A, which includes a mercury reed switch and is not CE- or RoHS-compliant, has been replaced for most applications by the P2546D.

Category:

The P2546A is constructed with durable anodized aluminum and stainless steel. Its switch has no bounce and has a mechanism that reduces the variation in operating time over the frequency range.

Benefits and Features

    • IEC Class 1 performance
    • Constructed from only durable materials such as anodized aluminum and stainless steel
    • No bounce switch
    • Mechanism reduces the variation in operating time over the frequency range
    • Compatible with many Campbell Scientific data loggers
Sensor 3-cup anemometer
Measurement Description Wind speed
Signal Type/Output Contact closure (pulse)
Range 0 to 70 m/s
Starting Threshold < 0.4 m/s
Starting Speed 0.27 m/s
Gain 0.6201 m
Distance Constant λ0 = 1.81 ± 0.04 m
Standard Deviation of Offset 0.014 m/s
Standard Deviation of Gain 0.027 m
Variation among Units ±1%
Non-Linearity < 0.04 m/s
Temperature Influence < 0.05 m/s (-15° to +60°C)
-NOTE- The specifications are based on 80 wind tunnel calibrations performed according to the Measnet Cup Anemometer Calibration Procedure. The specified offset and gain figures represent the mean values of these calibrations. Variation among units designates the maximum deviation of any unit from the straight line representing these mean values. All units are run-in for 225 hours at 9 ms-1, in order to reduce the initial bearing friction to a level close to the steady state value. After run-in, bearing friction is tested at -15°C and at room temperature. The allowed limits for this test assure that the temperature influence on the calibration is within the specified limit.
Calibration
Standard U=A0+B0×f
Wind Speed U [m/s]
Offset A0=0.27 m/s (“starting speed”)
Gain B0=0.620 m
Output Frequency f [Hz]
Switching Characteristics
Signal Type Potential free contact closure
Duty Cycle 40% to 60%
Maximum Switching Voltage 30 V
Maximum Recommended Switching Current 10 mA
Series Resistance 330 Ω, 1 W
Operating Temperature Range -35° to +60°C

Brochures: P2546A Class 1 Anemometer

Download

Manuals: P2546A, P2546C, and P2546D Anemometers

Download

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