Vector Instruments

United Kingdom

See product on windspeed.co.uk

The W200P Potentiometer Windvane incorporates a precision wire-wound potentiometer as a shaft angle transducer, enabling wind direction sensed by the F20 fin to be accurately determined when connected to suitable measuring equipment, such as a data logger or PLC. The potentiometer has the lowest possible torque consistent with long life and reliability, the small gap at north being filled with an insulating material to ensure smooth operation over the full 360°. The standard F20 vane-arm (fin) assembly is attached using the unique Porton™ gravity fastener allowing

good alignment and rapid attachment and release. A large alternative vane-arm (fin), type F20/LV is available where improved sensitivity is required. Construction is from anodised aluminium alloys and stainless steels for exposed parts. Combined with a hard plastic (upper) bearing and precision ball-races, the result is an instrument suitable for continuous exposure to the weather, with a long service interval. A marine version (/WR) is available with enhanced body/fin sealing and a touching shaft-seal above the upper plastic bearing for extra protection against the elements. This is our most popular windvane and is suitable for most applications. Please contact us for advice on the correct choice of options and accessories and suggestions on measuring techniques for best results in your application. This windvane is Fixed Reference, that is to say that it must be aligned with north during installation and fixed in that position/orientation during operation. For mobile platforms or situations where the orentation of the platform is unknown, a self-referencing windvane such as our SRW1G would be appropriate.
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