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Windspeed Ltd (Vector Instruments), 113 Marsh Road, RHYL, N. Wales, LL18 2AB, United Kingdom.
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 Thursday, November 21 2024  Home [arrow]  Products [arrow]  Windvanes [arrow]  W200 (Porton?) Search site:  

Latest Weather...
(Rhyl, N.Wales, UK)
Wind Speed:  3.4 mph
Wind Direction:  174 °
Air Temp.:  2.4 °C
Rel. Humidity:  87.6 %
(updated at: 12:47 UTC)

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Celebrating more than 50 years manufacturing & servicing High Quality Vector Instruments Anemometers and Windvanes at Windspeed Ltd
W200 Porton? Windvane
 
Datasheet: login to download NOTE: THIS PRODUCT IS NOT SUITABLE FOR NEW APPLICATIONS AND IS ONLY AVAILABLE AS A SPARE FOR EXISTING INSTALLATIONS.

The W200 Porton™ Windvane is a highly sensitive wind direction sensor incorporating a unique reed-switch transducer. Operation is by means of a small permenant magnet which turns with the vane, thus there is effectively just one moving part with very little friction resulting in an instrument having a long service life and requiring little or no maintenance.

This windvane is ideal for connection to an analogue meter or recorder, the display or chart being free from frequent switching at north as occurs when using a conventional potentiometer. Averaging is neccesary to reduce the effect of wind fluctuations, and in normal turbulent conditions, it improves resolution enabling accurate readings to be taken. The output varies over a 600° range with 360° switching at the range extremities.

In all but very light wind conditions, provided that there is good exposure of the instrument, range swithing occurs very infrequently, these events being of short duration and easily identified on chart records. A 'north reference' output is provided which serves as a self-test feature and also enables calibration of indicating and recording equipment.

The body of the W200 instrument must be aligned to North during installation, however a self-referencing version SRW1G is available which contains an internal compass mechanism and is suitable for applications where the platform orientation is unknown or variable, for example buoys at sea.

The small size and weight of the W200, together with the unique gravity-sensitive fastener for the vane-arm, facilitates use in portable applications, and although built to withstand hurricane force, the low-torque transducer coupled with the balanced vane turns in very light winds.
Construction is from anodised aluminium alloys and stainless steels for exposed parts. The stainless steel shaft runs in a precision corrosion resistant ball-race and hard plastic upper bearing. The bearings are protected from the entry of rain and moisture droplets resulting in an instrument suitable for permenant exposure to the weather.

The recommended mounting adaptors for use with this instrument are our type 405 and 405-1 series.

Specification Highlights:

  • Accuracy:
    		• ?4? *
  • Damped Natural Wavelength:
    		• 3.4m **
  • Damping Ratio:
    		• 0.15m **
  • Recovery distance:
    		• 0.51m **
  • Distance Constant:
    		• 2.3m **
  • Operating Temperature:
    		• -40 to +70?C
  • Threshold:
    		• 0.3m/s (0.6Knot, 0.7mph)
  • Basic Resolution:
    		• 15?
  • Max. Wind Speed:
    		• In excess of 75m/s (150Knots, 170mph).
  • Supply Voltage:
    		• 12 or 24V dc (10..30V dc)
  • Supply Current:
    		• 8mA typical
  • Output Signal ***:
    		• -6.67V..+6.67V (?2%, no load) corresponding to -300..+300? from South (differential, in 0.33V steps, Common-Mode Range = 0..7.5V)
  • Fin (Vane-Arm):
    		• type F20 as standard.
  • Dimensions:
    		• This instrument is constructed using our standard fin and windvane body design and dimensions.

    Notes:
    This product is NOT recommended for new applications .
    * = winds >2m/s, with averaging
    ** = with standard F20 vane/fin (other vane/fins are available)
    *** = The output signal from the W200 is differential and is generally not the easiest to measure using a datalogger
    - our W200P Potentiometer Windvane is more suitable.
    Recommendations:
  • Reliability & Safety
    • Specifications are correct at time of writing and may change without notice. Please contact us to confirm the latest specifications.
     
    Windspeed Ltd (Vector Instruments)
    		 Windspeed Limited (trading as Vector Instruments),
    113 Marsh Road, RHYL, North Wales, LL18 2AB, United Kingdom
    Tel: +44 (0) 1745 350700
    Email: sales@windspeed.co.uk
     
    Website design and content is copyright (c) 2003-2024 Windspeed Limited (unless otherise stated). All trademarks are acknowledged.