Umirs Europe Ltd. Predix
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Comment – No requirements are shown in respect of the area for the limits of non-radio
transparent (metal, ferroconcrete and so on) walls and barriers.
The presence of nearby walkways, bikeways, roadways, railways, etc., forested tracts, and large,
immovable objects and structures must be at a distance from the detector of no less than twice
the width of the exclusion zone itself. In the event of subjection of the detector or immediately
adjacent objects to vibration caused by passing traffic, the appropriate distance of the detector
therefrom must be determined by trial-and-error.
In case of installation near power lines, the detector units must be placed no closer than 5 m to
lines of a voltage up to 35 kV, and no closer than 10 m to lines of a higher voltage up to 500 kV.
Note: If the above requirements are not strictly observed, the operating performance of the
detector may not be optimal. In the absence of such compliance with said requirements, the
determination of whether the continued use of the detector under the existing conditions is
appropriate should be dictated by the actual performance experienced.
MOUNTING THE DETECTOR
In terms of its physical configuration, the final assembled detector is comprised of two oppositely-
placed separate units – the transmitter unit and receiver unit – which are identical in size and
appearance. To perform proper physical orientation of the units, it is necessary first to loosen their
fixing nuts, and then to tighten them after final adjustment. Firm affixment of the transmitter unit
(receiver unit) on a supporting pole is done with the aid of the set of assembly parts. The
recommended diameter of the pole is from 45mm up to 70mm.
The installation of the detector must allow free access to the controls and the fastening elements.
It is recommended to bury the connecting cables in the ground.
Setting up the detector
In places where the height of the snow cover may exceed 0.5 m, the length of such parts of the
posts (supports) for the fastening of the detector units as are above the ground shall not be less
than 1.5 m. In areas with little snow it is allowed to reduce to 1.1 m the length of such parts as are
