48
MPB-311
Mounting
7.7.3
Installing the induction loops – general notes
Please observe following points when installing the induction loops.
Loop geometry and clearances
›
›
Double install induction loops.
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Install the induction loops as close as possible under the surface.
›
Install the induction loops with a minimum distance of 50 mm from
reinforcements. Metals in the proximity of the induction loop affect the response
sensitivity.
Mounting and ground conditions
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Please make sure when moulding or installing that the loop cannot move
anymore once it is in operation. Any geometric alteration will act as inductivity
change, which will set the detector to an error state.
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Brittle road surfaces, loose pavements, gravel paths etc. are not suited for the
application of loops.
Loop supply lines
The loop supply lines are connected to the loop detector in the support beam.
Observe the following points regarding the loop supply lines:
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The loop supply line must not be any longer than 15 m.
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The loop supply line must protrude at least 5 m from the foundation.
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Shorten the loop supply lines to the matching length and do not wind them up.
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Twist loop supply lines up to right in front of the terminals of the loop detector
with ca. 20 twists per metre.
Summary of Contents for MPB-311
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