Modbus RTU wind direction sensor 3S-WD-MB-A

RS485IP54maintenance-free

Product overview
The Wind Direction Sensor 3S-WD-MB-A measures horizontal wind direction in degrees (0–359°) using a vane-driven Hall effect position sensor. It provides Modbus RTU output over RS485 and is supplied with mounting accessories and a UV- and weather-resistant cable. Typical applications include PV plant monitoring, warranty documentation after wind-related damage and site performance analysis where wind direction variability is relevant.

Operation and features
The vane-driven Hall effect position sensor converts angular changes into a digital signal for reliable integration. Digital Modbus RTU output (RS485) enables straightforward connection to SCADA, dataloggers, inverters and other industrial monitoring equipment. The housing is anodized aluminium with seawater resistance for outdoor durability. Supplied cable is UV- and weather-resistant.

Mounting options

• Pipe mounting
• Ground mounting

Why SEVEN Aluminium Wind Direction Sensor?

• High measurement accuracy: Provides consistent wind direction readings with ±1% accuracy (see technical data).
• Outdoor durability: Anodized aluminium housing resistant to marine conditions for long-term field use.
• Low maintenance: Mechanical design minimises upkeep for long-term monitoring deployments.
• Compatible integration: Modbus RTU over RS485 for easy connection to standard industrial monitoring systems.
• Flexible installation: Multiple mounting and cable options to suit PV plants and other industrial sites.

Technical Specifications of Aluminium Wind Direction Sensor

• Item Code: 3S-WD-MB-A
• Sensor Type: Vane-driven Hall Effect position sensor
• Measuring Range: 0–359°
• Accuracy: ±1% of measuring value
• Resolution: 0.1°
• Start Speed: 1 m/s
• Data Output: RS485
• Communication Protocol: Modbus RTU
• Power Supply: 12–30 V DC (24 V DC recommended)
• Power Consumption: Typically 20 mA at 24 V DC
• Cable Length & Features: 1 m 3x2x0,22 mm² – LI2Y(st) C11Y, UV and weather resistant (other lengths/options available)
• Operating Temperature Range: -40°C … +85°C (ice free)
• Dimensions: 305 mm x 185 mm
• Box Dimensions: 80 mm x 82 mm x 55 mm (W x L x H)
• Weight: 0.45 kg
• IP Rating: IP54
• Housing Material: Aluminium
• Vane Material: Aluminium
• Mounting Method: Pipe or Ground Mounting
• Standard: Compliant to IEC 61724-1:2021