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Wind

Anemometer to measure the wind speed and the wind direction

Wind Direction Sensor

TF4121

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 vane turns  through the influence of the wind pressure into the corresponding wind direction. Shaft made of stainless steel, guided in special covered precision ball bearings; housing made of polycarbonate.

Thanks to various simultaneously usable outputs there is a wide range of measuring tasks.

Also available:

Sensor with ringpotentiometer, for connection of recorders, data acquisition systems, COMBILOG etc.; winding gap 2° pointing to North direction.

 

  • Technical Specification
  • Variations
  • GENERAL:
  • Max. load: 60 m/s
  • Threshold: 0.2 m/s (at 90° initial deflection)
  • Damping ratio: 0.57 (at v = 3 m/s and initial deflection = 15°)
  • Admissible ambient temperature: -35...+80°C
  • Protection class: IP65, when operated upright
  • Housing material: Polycarbonate, black
  • Connection: 12 p., plug and socket, water and dust proof acc. to IP67
  • Dimensions: length: approx. 436 mm
    max. turning radius: 350 mm
    max. housing Ø: 80mm
    pivot: Ø 34 x 40 mm
    weight: approx. 0,9 Kg
  • :
  • TYPE 4121 (with ring potentiometer):
  • Measuring range: 1...359°
  • Output: Potentiometer 1000 Ω, lin. ± 0,3 %
  • Heating (optional): controlled by thermostat, max. 7 W
  • Supply: Version with heating only (4121.1XXX ):
    10...30 VDC, approx. 7 W
  • :
  • TYPE 4122:
  • Measuring range: 0...359°
  • Supply: Electronics:
    4123.0000: 10...30 VDC; < 5 mA at 12 V
    4123.1000: 10...30 VDC; 35...75 mA at 12 V

    Heating:
    10...30 VDC; approx. 7 W
  • Output: Digital:
    serial 8 bit Gray code,
    RS 232 compatible, 600Bd, 8 data bit, 1 startbit, 2 stopbit, no parity, TTL level

    Analogue (4122.1XXX only):
    0...20 mA / 4...20 mA,
    3 phase signal for direct connection of analog instruments
  • Resolution/Accuracy: ± 2.5°
  • Admissible load: approx. 400 Ω
  • Heating: controlled by thermostat, max. 7 W
  • note 4121.0000with ring potentiometer 1...359°
  • note 4121.1000with ring potentiometer 1...359°; with built-in heating
  • note 4122.00008 bit Gray Code, with serial output, TTL level; with built-in heating
  • note 4122.10008 bit Gray Code, with serial output, TTL level, analogue outputs 0...20 mA / 4...20 mA, 3 phase signal for direct connection of analogue instruments; with built-in heating
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4122

P4121

4400

P11

Combined Wind Speed and Wind Direction Sensor. We recommend the additional installation of a lightening rod.

4122 and 4034

P4400Wste