Wind Measurement Archives - H. S. S. Enterprises https://hssenterprises.lk/product-category/meteorological-instruments/wind-measurement/ Weather, Agricultural & Science Instrument Suppliers in Sri Lanka Mon, 13 Jul 2026 13:40:10 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://hssenterprises.lk/wp-content/uploads/2021/06/HSS_logo1-150x65.jpg Wind Measurement Archives - H. S. S. Enterprises https://hssenterprises.lk/product-category/meteorological-instruments/wind-measurement/ 32 32 Wind Speed and Direction Senser https://hssenterprises.lk/product/wind-speed-and-direction-senser/ https://hssenterprises.lk/product/wind-speed-and-direction-senser/#respond Wed, 08 Jul 2026 15:40:23 +0000 https://hssenterprises.lk/?post_type=product&p=1230 Wind Direction Sensor; heavy duty design. Special rugged design with improved dynamic features basing on high precision bearings and optimised balancing.

This sensor is designed for the acquisition and electronic transmission of wind direction data. It is suitable for applications in the field of meteorology and environmental monitoring, e. g. for automatic weather stations, at airports, on research vessels, at industrial sites, for mobile measuring systems etc.

The instrument’s rugged construction and its dust- and water repellent surface, as well as the optional high performance heating enable heavy duty applications like wind energy measurement or operation under severe climatic conditions.

Thanks to various outputs and further options there is a wide range of measuring tasks (refer to Varations).

Electrical design and principle of operation
A rotating magnet at the shaft consist of a magnetic north- and south pole, which venerates a rotating field vertical to the shaft. This rotating field will be detected by an encoder chip on a PCB. The chip has 1024 segments. A full turn of the wind vane equals to 360°.

An electronic circuitry provides an analogue data output.

Variations
  • 4138.1000 - Data outputs 0…10 V and 0…720 Hz integrated heating 15…40 W (Supply: 12…26 VDC)
  • 4138.1200 - Data outputs 0…20 mA and 0…600 Hz integrated heating 15…40 W (Supply: 12…26 VDC)
  • 4138.1400 - Data outputs 4…20 mA and 0…720 Hz integrated heating 15…40 W (Supply: 12…26 VDC)

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]]> Technical Specification
  • Measuring method:magnetic, contact free
  • Measuring range:360°
  • Resolution:0.35°
  • Accuracy:< 1°
  • Max. load:100 m/s
  • Threshold:< 0.2 m/s (at 90° initial deflection)
  • Damping ratio:< 0.3 (at v = 3 m/s and initial deflection = 15°)
  • Supply:Electronics:
    12…28 VDC; approx. 50 mA    Heating:
    15 W at 12 VDC
    40 W at 24 VDC
  • Data output signal:Analouge:
    0…10 V = 0…60 m/s or
    0…20 mA = 0…60 m/s or
    4…20 mA = 0…60 m/s
  • Admissible load:approx. 400 Ω
  • Operating temperature:-40 …+80°C with heating
    0 …+80°C without heating and rel. Humidity >95 %
  • Connection:connector, metal
    IP 67, when plugged in
  • Protection class:IP 65, when operated upright
  • Housing material:Aluminium alloy
  • Dimensions:length: approx. 370 mm
    max. turning radius: 350 mm
    max. housing Ø: 80mm
    pivot: Ø 34 x 40 mm
    weight: approx. 1,015 Kg
  • Compliances:WMO Guide No. 8/7th ed.
    VDI 3786, T.2, 12/2000
    MEASNET

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]]> https://hssenterprises.lk/product/wind-speed-and-direction-senser/feed/ 0 wind vane with force indicator, Wild-type https://hssenterprises.lk/product/wind-vane-with-force-indicator-wild-type/ https://hssenterprises.lk/product/wind-vane-with-force-indicator-wild-type/#respond Mon, 03 May 2021 07:01:38 +0000 http://new.hssenterprises.lk/?post_type=product&p=288 weatherproof lacquered steel finish, for determination of wind direction and wind force.
The wind vane turns the force indicator to the protractor direction.
The wind direction is determined by the position of the wind vane to the direction-cross.
The force of the wind or the wind speed is determined by means of the position of the force indicator to the protactor bearing the marks.
Fastening on wooden mast or steel mast.
Dimensions: 950 x 950 mm, 1370 mm height. Weight: 7 kg

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]]> https://hssenterprises.lk/product/wind-vane-with-force-indicator-wild-type/feed/ 0 Cup Counter Anemometer https://hssenterprises.lk/product/cup-counter-anemometer/ https://hssenterprises.lk/product/cup-counter-anemometer/#respond Mon, 03 May 2021 07:00:14 +0000 http://new.hssenterprises.lk/?post_type=product&p=286 For continuous measurement of wind run, in weatherproof finish, with built-in, inclined, seven-digit reel counter. Usable for velocities up to 60 m/s.

Starting velocity: 0.6 m/s
Measuring range of counter: 0...99999.99 km of wind run
Counting unit: 10 m of wind run
Height of the figures: 8 mm
Counter incline: 30°
Socket for steel tube mast: R ½´´
Height: 250 mm
Diameter of cup wheel: 220 mm
Weight: 1.4 kg

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