W200P W200P-1 Potentiometer Windvane
First Class performance to IEC61400-12-1 standard
weather applications supported water applications supported energy applications supported gas flux and turbulence applications supported infrastructure applications supported soil applications supported


The W200P-1 has excellent sensitivity and is suitable for remote operation. It incorporates a precision micro-torque wire wound potentiometer mounted in an all-weather, corrosion-resistant case. The potentiometer has the lowest possible torque consistent with long life and reliable operation. Read More

Benefits and Features

  • Robust, precision instrument
  • Field-proven track record
  • Long cables and anti-icing heaters available to special order
  • Fin and rotor attached by patented gravity sensitive fastener for rapid attachment and release in portable applications


Technical Description

The small gap at North is filled to ensure smooth operation and a long service life. The precision ball-bearing races are corrosion resistant and protected against the entry of moisture and dust. Marine Version Available to special order; call for further details.


Fin Fixing: Patented gravity sensitive fastener for rapid attachment and release Windvane Fixing: 0.25" BSW/UNC (6° taper fitting type 128-1 also available for portable applications) tapped hole and screw into base Potentiometer Resistance: 1kΩ ±10% Electrical Continuity Angle: 357.7°±1.5° (2.3°gap at North) W200P-1 windvanes supplied by Campbell Scientific are fitted with a 100kΩ parallel resistor to prevent floating readings in the deadband. The effect on accuracy is minimal. Electrical Variation Angle: 356.5°±1.5° (3.5°deadband) Temp. Coefficient: ±50ppm/°C Maximum Power Dissipation: 0.5W -50°C to+20°C; derate linearly to 0.25W at +70°C Insulation Resistance: 50MΩ minimum Wiper Current: 20mA maximum Voltage, case to potentiometer: 125V maximum Supply Voltage: 20V maximum

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