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.

Standard 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

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, uses a 360° magnetic encoder with a 0-5 volt DC output with 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 green anti-ice coating
• Climatic Protection: Protection against water, high humidity, salt spray, and dust

Power Requirements

• Power Supply: 4.5 VDC min to 5.5 VDC max, Typical 5.0 VDC
• Supply Current: Typical 16 mA, 20 mA maximum
• Analog Output: 0.015 VDC minimum and 4.987 VDC maximum