风速和风向传感器 / P2546A-L
一级风速计
概览
P2546A 一级风速计用于风能应用。风速通过3-杯旋转组件传感得到。磁体固定传感器的轴上，每圈产生2次的闭合/打开的开关信号。我们的数据采集器测量开关脉冲信号，并转换成工程单位（英里/小时、米/秒、节）。P2546A 风速仪到货带有磁体校准证书。
还提供了P2546C（线圈型）和P2546D（电子型）。
注：P2546A包括一个水银簧片开关，不符合CE或RoHS标准，已被P2546D取代，用于大多数应用。
优势与特点
- 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
图像
技术说明
P2546A 由耐用的阳极电镀铝和不锈钢构建。它的开关没有回跳，并具有在操作寿命内的测量频率量程以内的减小波动的机制。
产品接线信息：
白色 – 信号
棕色 – 信号地
透明 – 屏蔽
产品规格
| 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 |
相关技术文档
常见问题解答
P2546A-L: 2
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Yes. Campbell Scientific recommends checking the local regulations to ensure that mercury switches are usable in the intended area. If a sensor without the mercury switch is required, contact us for assistance with ordering the P2546C-L.
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Yes. Every P2546A-L ships with a MEASNET calibration certificate.