The NRG #200P continuous rotation potentiometric wind direction vane is the industry standard wind direction vane used worldwide. The thermoplastic and stainless steel components resist corrosion and contribute to a high strength-to-weight ratio. The vane is directly connected to a precision conductive plastic
potentiometer located in the main body. An analog voltage output directly proportional to the wind direction is produced when a constant DC excitation voltage is applied to the potentiometer. A rubber terminal boot is included. Suitable for use in wind resource assessment, meteorological studies and environmental monitoring.
Specifications
Sensor range
360° mechanical, continuous rotation
Output signal
Signal type: Analog DC voltage from conductive plastic potentiometer, 10K ohms
Transfer function: Output signal is a ratiometric voltage
Accuracy: Potentiometer linearity within 1%
Dead band: 8° Maximum, 4° Typical
Output signal range: 0 V to excitation voltage (excluding deadband)
Response characteristics
Threshold: 1 m/s (2.2 miles per hour)
Power requirements
Supply voltage: Regulated potentiometer excitation of 1 V to 15 V DC
Installation
Mounting: Onto a 13 mm (0.5 inch) diameter mast with cotter pin and set screw
Tools required: 0.25 inch nut driver, petroleum jelly, electrical tape
Environmental
Operating temperature range: -55 °C to 60 °C (-67 °F to 140 °F)
Operating humidity range: 0 to 100% RH
Lifespan: 50 million revolutions (2 to 6 years normal operation)
Physical
Connections: 4-40 brass hex nut/post terminals
Weight: 0.14 kg (0.3 pounds)
Dimensions: 21 cm (8.3 inches) length x 12 cm (4.3 inches) height 27 cm (10.5 inches) swept diameter
Materials
Wing: Black UV stabilized injection molded plastic
Body: Black UV stabilized static-dissipating plastic
Shaft: Stainless steel
Bearing: Stainless steel
Boot: Protective PVC sensor terminal boot included
