Cup anemometer 3S-WS-MB-A

IP66IP54maintenance-free

Product description
Compact cup-star anemometer for wind speed measurement in photovoltaic plants and industrial sites. Modbus RTU (RS485) output for direct integration with Modbus dataloggers, SCADA systems and inverters. Supplied with a LIYYC11Y PUR cable; see Technical Specifications for length details.

How it works
The sensor measures horizontal wind speed using a cup-star rotor coupled to a reed switch that generates pulses. Pulses are converted to speed (m/s) and transmitted via Modbus RTU. The housing is anodized aluminum for corrosion resistance and the cups are ABS. A separate transducer box contains the signal electronics.

Applications

• Industrial and environmental monitoring
• Photovoltaic plant monitoring and PV performance management
• Integration with Modbus RTU dataloggers, SCADA and inverters

Installation
Two mounting options: pipe mounting using the supplied adapter or ground mounting. Install the sensor clear of local obstacles and at the standard height used for PV monitoring. Follow manufacturer wiring and grounding instructions when connecting the transducer box to the Modbus network.

Why choose SEVEN Wind Sensors

• High sensitivity across the operational range for reliable measurements
• Weather-resistant construction: anodized aluminum body and UV-resistant cable; IP54 standard, IP66 optional
• Smooth integration with industrial protocols and equipment
• Low maintenance: enclosed bearings and protected electronics
• Factory calibrated: each unit tested and calibrated before shipment

Frequently Asked Questions

• Warranty: 2 years for all 3S-WS-MB-A units.
• Price: Indicative range €220–€400 depending on options and volume.
• Delivery times: Small orders approx. 2–3 weeks; bulk orders (100 pcs) approx. 7–9 weeks.
• Setup: Follow the supplied user manual for installation, wiring and Modbus register mapping.
• Cable: Technical table references 1 m LIYYC11Y PUR cable; standard supply includes a 3 m LIYYC11Y PUR cable (UV and weather resistant). Other lengths available on request.

Technical specifications

• Item Code: 3S-WS-MB-A
• Sensor Type: Cup star anemometer (reed switch)
• Measuring Range: 0.9 to 60 m/s
• Accuracy: <5 m/s: ±0.5 m/s; ≥5 m/s: ±10% of reading
• Resolution: 0.1 m/s
• Threshold (start): 0.9 m/s
• Survival Speed: 60 m/s
• Data Output: Modbus RTU – RS485 (up to 38400 baud)
• Communication Protocol: Modbus RTU
• Power Supply: 12–30 V DC
• Cable length & features (table): 1 m LIYYC11Y PUR, UV and weather resistant
• Supplied cable (standard): 3 m LIYYC11Y PUR (UV and weather resistant)
• Operating Temperature: -40 °C to +85 °C (ice free)
• Dimensions: Ø 180 x 145 mm
• Transducer Box Dimensions: 82 x 80 x 55 mm (L x W x H)
• Weight: 0.34 kg
• Body Material: Anodized aluminum
• Cup Material: ABS
• Mounting: Pipe or ground mounting
• Standard: Compliant to IEC 61724-1:2021