Ideal for wind-energy applications
Overview
The P2546D, manufactured by WINDSENSOR, is a Class 1 cup anemometer commonly used in wind resource assessment and power performance applications. Each anemometer is individually calibrated compliant with IEC 61400-12-1 and is shipped with a MEASNET calibration certificate. The P2546D features permanent magnets mounted on the shaft that activate an electronic switching current. In response, this generates an output signal with a frequency that is proportional to the wind speed. The durable construction is suitable for both on-shore and off-shore environments. The “D” version of this sensor (electronic version) is compatible with all Campbell Scientific measurement and control data loggers.
Other available versions:
Benefits and 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
Images
Specifications
| Sensor | 3-cup anemometer |
| Measurement Description | Wind speed |
| Range | 0 to 75 m/s |
| Starting Threshold | < 0.3 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 |
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| 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 | 45% to 55% |
| Maximum Switching Voltage | 30 V |
| Maximum Recommended Switching Current | 10 mA |
| Series Resistance | 60 Ω |
| Operating Temperature Range | -40° to +60°C |
Compatibility
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Related Documents
Manuals
Related FAQs
Number of FAQs related to P2546D-L: 2
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Most Campbell Scientific sensors are available as an –L, which indicates a user-specified cable length. If a sensor is listed as an –LX model (where “X” is some other character), that sensor’s cable has a user-specified length, but it terminates with a specific connector for a unique system:
- An –LC model has a user-specified cable length for connection to an ET107, CS110, or retired Metdata1.
- An –LQ model has a user-specified cable length for connection to a RAWS-P weather station.
If a sensor does not have an –L or other –LX designation after the main model number, the sensor has a set cable length. The cable length is listed at the end of the Description field on the product’s Ordering tab. For example, the 034B-ET model has a description of “Met One Wind Set for ET Station, 67 inch Cable.” Products with a set cable length terminate, as a default, with pigtails.
If a cable terminates with a special connector for a unique system, the end of the model number designates which system. For example, the 034B-ET model designates the sensor as a 034B for an ET107 system.
- –ET models terminate with the connector for an ET107 weather station.
- –ETM models terminate with the connector for an ET107 weather station, but they also include a special system mounting, which is often convenient when purchasing a replacement part.
- –QD models terminate with the connector for a RAWS-F Quick Deployment Station.
- –PW models terminate with the connector for a PWENC or pre-wired system.
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Many Campbell Scientific sensors are available with different cable termination options. These options include the following:
- The –PT (–PT w/Tinned Wires) option is the default option and does not display on the product line as the other options do. The cable terminates in pigtails that connect directly to a datalogger.
- In the –C (–C w/ET/CS110 Connector) option, the cable terminates in a connector that attaches to a CS110 Electric Field Meter or an ET-series weather station.
- In the –CWS (–CWS w/CWS900 Connector) option, the cable terminates in a connector that attaches to a CWS900-series interface. Connection to a CWS900-series interface allows the sensor to be used in a wireless sensor network.
- In the –PW (–PW w/Pre-Wire Connector) option, the cable terminates in a connector that attaches to a prewired enclosure.
- In the –RQ (–RQ w/RAWS Connector) option, the cable terminates in a connector that attaches to a RAWS-P Permanent Remote Automated Weather Station.
Note: The availability of cable termination options varies by sensor. For example, sensors may have none, two, or several options to choose from. If a desired option is not listed for a specific sensor, contact an application engineer at Campbell Scientific for assistance.