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Information for the installer – Control box
Assembly / Connection of wind sensors
Ä
ATTENTION!
It is not permitted to have two different types of wind sensors or other manufac-
turers’ wind sensors connected at the same time.
This may cause serious personal injury or damage to property.
Operation
The wind sensor is used for recording non-directional measurements of outdoor horizontal air flow. The
wind sensor has a compact design and is fitted with a reed contact which converts the wind speed into
an electrical signal. These signals are produced by the reed contact which is closed by a magnetic field.
A shaft, which is attached to the anemometer and runs in a ball or plain bearing, passes the magnet over
the reed contact at a frequency which is proportional to the anemometer speed, and therefore also to the
wind speed. The measured values are converted into digital electrical signals and transmitted to the
control system. It is also possible to detect a rupture of the wind sensor cable.
Assembly of the wind sensor
The wind sensor is installed either with the aluminium mounting bracket article-no. 01100510 or with the
plastic mounting bracket article-no. 01271020. Align so that the cable inlet is pointing downwards. Use
clips, cable ties or similar fasteners to attach the measuring cable securely to the mounting bracket so
that the cable cannot be damaged by flapping and fraying during high winds.
Choice of assembly location
Wind gauge devices should generally cover the wind conditions within a wide perimeter. In order to
obtain comparable values when determining surface wind, measuring should take place at a height of
10 m above level, undisturbed ground. Undisturbed ground means that the distance between the wind
sensor and any obstacle should be at least ten times the height of the obstacle (see VDI 3786). If it is not
possible to comply with this requirement, the wind sensor should be set up at a height at which the
measured values are, as far as possible, not influenced by local obstacles (approx. 6 m to 10 m above
disturbance level). In the case of flat roofs, the wind sensor should be set up in the middle of the roof and
not at the roof edge in order to avoid possible prevailing wind directions.
Maintenance / Cleaning
If the device is subject to extreme weather conditions, it may only be assembled and operated in a
vertical position, otherwise water could penetrate the device and impair its function. If the device is
installed properly, it will work maintenance-free. If the sensor becomes excessively soiled, it can be
cleaned with standard household cleaning products as long as they do not contain any aggressive or
abrasive ingredients.
Cable lengths
If the 5 m signal cable is too short, it can be extended up to 100 m using the same cross section.
