Arklay S. Richards Compact High Speed Wind Sensors

Off Grid Options and APRS World are proud to add Arklay S. Richards Compact High Speed Wind Sensors to our product line. Options include both reed switch pulse output and AC frequency output anemometers along with heated sensors and anti-stick coated anemometer rotors. Specifications for each sensor are available when you click the appropriate links. Please note that only the switch pulse output anemometers are compatible with APRS World's Wind Data Logger. These are special order items that may require a two week lead time prior to shipping.

Heated Compact Wind Vane

• All Stainless Steel Construction
• Anti-ice Coated Shaft Tower
• Hardened Stainless Steel Shaft
• Compact Profile and Light Weight
• .50" O.D. Tubing Mount
• Field Replaceable Stainless Steel Bearings
• 10K Potentiometer Output
• Internal Heater

Technical Specifications

Wind Direction Vane Output and Range

Analog DC voltage output proportional to wind direction angle with excitation voltage supplied by data logger, 360° continuous mechanical rotation, direction range has a 360° magnetic encoder with a 0-5 volt DC output and no dead band

Wind Direction Vane Performance

• Threshold: 0.9 mph or 402 m/s
• Angular Accuracy: <.05 degrees @ 25°C
• Life Expectancy: 50 million revolutions or 4-6 years operation

Environmental Specifications

• Operating Humidity Range: 0 to 100% RH
• Bearing Operating Temperature: -65°F to 300°F or -54°C to 148°C
• Instrument Operating Temperature: -67°F to 140°F or -55°C to 60°C

Materials of Construction

• Shaft Tower: 316 stainless steel
• Shaft: Hardened 303 stainless steel
• Wind Vane Housing: 316 stainless steel
• Wind Vane and Hub Assembly: 316 stainless steel
• Bearings: Double shielded and hardened stainless steel balls

Physical Dimensions

• Height: 9.25 Inches or 234.95 mm
• Weight: 1.87 Pounds or 849.58 grams
• Body Diameter: 1.50 inches or 38.10 mm
• Vane Height: 5.20 Inches or 132.08 mm
• Vane Length: Length 10.75 Inches or 273.05 mm
• Swept Diameter of the Vane: 12.00 Inches or 304.80 mm

Electrical Connections and Cables

• Wind Direction Vane: 108”, 3-wire cable, shielded, drain wire, PVC jacket
• Cable: Split and bare leads
• Tools Required for Mounting, Installation, and Maintenance
• Tools: 1/8, 5/32, Allen wrench, Phillips screwdriver and .25 inch torque pin
• Mounting: 0.5 inch or 12.7 mm diameter mast with three set screws

Electrical Techncial Data

• Signal: 0-5 volts DC proportional to wind vane position, no dead band

Wind Vane Protection

• Finish: Modified black anti-ice coating
• Climatic Protection: Protection against water, high humidity, salt spray, and dust

Heater Specifications

• Heater Power Supply: 15 Watts @ 12V DC, draws 1.25 Amps, tolerance of +/- 25% or 11.5-18.5Watts, .68-10.3 Ohms
• Wind Vane Housing Temperature with Heater Under Power: 147°F or 63.9°C, heater activation temperature of 37°F or 2.8°C

Power Requirements

• Regulated Potentiometer Excitation: 1 VDC to 15 VDC
• Power Rating: 1.5 Watts @ 70°C