Vector Instruments

United Kingdom

See product on windspeed.co.uk

The W200P/L Low Torque 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 lower torque than our standard W200P potentiometer windvane, allowing increased sensitivity at lower windspeeds, however the gap and "deadband" at north are larger and the potentiometer is less robust, factors which are reflected by the lower price of this instrument. 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 extra 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 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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