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PROFESSIONAL
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Features of the PROFESSIONAL wind sensors
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PROFESSIONAL wind sensors for determining wind direction and wind speed
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Integrated, controlled heating for optimum heating of the sensor head, thermally separated from the lower
housing part
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Double ball bearing of the measuring elements on the rotary axes causes low friction, very low wear and
therefore high reliability and durability
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Dimensionally stable blade vane and break-proof three-armed cup rotor made of seawater-resistant aluminum
for maximum load-bearing capacity
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Simple mounting principles for mast, flange or bore for a high degree of flexibility
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Sensors with plug-in cable connection, particularly useful for easy installation or service work
Initial operation
The wind can be represented by a vector quantity. For a complete description of the wind it is necessary to specify its
speed and direction. The two components are subject to spatial and temporal variations; thus, strictly speaking, they are
valid only for the site where the measuring instrument is put up. We therefore recommend to select the place of installation
very carefully.
Selecting the place of installation
Generally, wind measuring instruments should not measure the specific wind conditions of a limited area, but indicate the
typical wind conditions of a wider area. The values measured at different places must be comparable. Thus, when installing
the sensor you should make sure the place of installation is not under the lee of great obstacles. The distance between
the obstacles and the sensor should be 10 times the height of the obstacles (this corresponds to the definition of an
undisturbed terrain).
If there is no
undisturbed terrain
, the sensor must be set up at a height that exceeds the height of the obstacle by
at least 5 m. If the sensor must be installed on a roof top the place of installation must be in the middle of the roof to
avoid predominant wind directions.
If you want to measure both wind direction and wind speed, install the sensors at the same measuring point,
if possible, and make sure to avoid any mutual influence of the sensors. A wind sensor pair easily meets this
requirement since the sensors are set up side by side. Their horizontal distance should be approximately 1.5 m. The
two sensors must be staggered vertically so that the lower edge of the upper wind speed sensor is 0.1 to 0.5 m above
the upper edge of the lower wind direction sensor.
