Cup anemometer 3S-WS-I-A

sealedmaintenance-freewith analog output

Overview
The 3S-WS-I-A is a cup anemometer (wind speed sensor) that measures horizontal wind speed (m/s) by converting cup rotation into an electrical signal. It uses a reed switch driven by a rotating magnet and includes a transducer box that converts pulse signals to a 4-20 mA analog output. The sensor is supplied with mounting hardware and a 3 m UV- and weather-resistant LIYYC11Y PUR cable. An optional heating kit is available for icing-prone locations.

Key Features

• Measurement principle: Cup Star anemometer with reed switch; rotation converted to pulses and processed to analog.
• Analog output: 4-20 mA for direct connection to dataloggers, gateways and PLCs with analog input.
• Materials: Anodized aluminum body and ABS cups for long-term outdoor use.
• Accessories: Transducer box and 3 m LIYYC11Y PUR cable (UV- and weather-resistant) included.
• Optional heating for ice protection.
• Low-maintenance sealed design and factory calibration for traceable readings.
• Recommended power supply: 24 V DC (operational range 12–30 V DC).
• Compliance: Designed to meet IEC 61724-1:2021 for wind measurement in PV and environmental installations.

Installation

• Mounting methods: Pipe mounting or ground mounting; mounting hardware included.
• Placement guidance: Install in unobstructed locations and follow applicable installation standards to avoid flow disturbances.

Additional product information

• Warranty: 2-year manufacturer warranty against defects.
• Price range (indicative): 190 - 340 EUR.
• Delivery times (indicative): Small orders ~2–3 weeks; bulk orders (100 pcs) ~7–9 weeks.

Technical specifications

• Item code: 3S-WS-I-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: 0.9 m/s
• Survival speed: 60 m/s
• Data output: Analog (4-20 mA)
• Power supply: 12–30 V DC (recommended 24 V DC)
• Cable: 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