What is Wind Speed Sensor and how does it work?

The anemometer, also known as the wind speed sensor, is one of the essential components of weather measurement stations and plays a critical role in environmental condition analysis. This sensor measures wind speed and converts the obtained value into an electrical signal in m/s units. Due to its design, it is capable of measuring horizontal wind speed independently of wind direction. The measurement system operates on a reed relay mechanism triggered by a magnet attached to wind cups. The housing is made of seawater-resistant anodized aluminum, making the sensor extremely durable and resistant. It is the ideal solution with the best price/performance ratio to meet the standard requirements of industrial and environmental applications such as PV plants. It can be connected to SEVEN Irradiance Sensor or Sensor Box models. The data collected by the sensor is transmitted to the irradiance sensor, then sent to the data logger via a single cable. This ensures that wind speed information is accurately and reliably obtained in m/s.

3S WS A 1

Technical Specifications of Wind Speed Sensor

Item Code 3S-WS-PLS-A
Sensor Type Cup Star Anemometer (Reed Switch)
Measuring Range 0,9 to 60 m/s
Accuracy Below 5m/s 0.5 m/s and 10% of reading above 5m/s
Resolution 0,1 m/s
Threshold 0,9 m/s
Survival Speed 60 m/s
Data Output Reed Relay
Cable’s Length & Features 3 m LIYY Cable, UV and Weather Resistant
Operating Temperature Range -40°C … +85°C (Ice Free)
Dimensions Ø 180 x 145 mm
Weight 0,34 kg
Body Material Anodized Aluminum
Cup Material ABS
Mounting Method Pipe or Ground Mounting
Standard Compliant to IEC 61724-1:2021

 What is the importance of Wind Speed Sensors?

According to IEC 61724-1:2021, wind speed is not used not only for estimating module temperatures but also play an important role in supporting warranty claims for wind-related damage. As more detail, wind can indirectly change system efficiency by affecting module temperature; it is also a critical parameter for structural safety. For example, wind sensors assess the risk of high wind speeds damaging panels. Excessive wind can cause damage to load-bearing systems. In this reason, for those damages, we can use the wind speed sensor as an evidence of excessive wind.

wind damages

How to install the wind speed sensor?

There is two different mounting method for installation: pipe and ground mounting. These mounting methods are explained in more detail below.

ws pipe mounting

ws ground mounting

Why Choose SEVEN Wind Sensors?

3S WS A 2

High Sensitivity: Designed to provide maximum sensitivity even in challenging and windy environments.

Weather-Resistant Design: Manufactured with durable materials capable of withstanding a variety of environmental conditions, from desert to coastal areas and remote sites. The standard IP rating is IP54, with an optional IP66 model available.

Flexible Integration: Provides seamless integration with various inverters, data loggers, SCADA systems, and a wide range of industrial protocols.

Reduced Maintenance: The enclosed housing and absence of external moving parts minimizes the risk of wear and reduces maintenance requirements.

Factory Calibration: All sensors are precisely calibrated and comprehensively tested before delivery.

In conclusion, SEVEN products use reliable, high-quality components to provide accurate meteorological information in environmental and industrial applications. They are specially designed according to the requirements of PV plant monitoring systems.

FREQUENTLY ASKED QUESTIONS (FAQ)

1- What is the warranty?

All 3S-WS-PLS-A sensors come with a 2-year warranty.

2- What is the price of wind speed sensor?

Between 100 and 150 EUR.

3- What are the delivery times?

  • Small Orders: approx. 1-2 weeks
  • Bulk orders (100 pcs): approx. 4-5 weeks

4- How do I set up the sensor?

Follow our user manual which include step-by-step instructions. The user manual link is

https://www.sevensensor.com/files/d/en/3S-WS_User_Manual.pdf

5- Does the sensor include a cable?

Each unit comes with a 3 m LIYY Cable (UV and weather resistant). Other lengths are available on request.