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REFERENCE

The inductive loop detection system is comprised of two elements, the electronic detector module and the inductive loop coil and lead-in cable. The detector oscillator circuit drives energy, 10 – 200KHz, through the loop wire creating an electromagnetic field.

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Regard for the basic traffic pattern as it pertains to the area and the door or gate to be controlled is a must. Cross traffic in the area may unnecessarily open doors or gates if not taken into account. Loop placement can also be a means of vehicle speed control.

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In order to have an inductive loop system operate as a reliable system, it is necessary to pay careful attention to the loop installation. The use of proper installation techniques can reduce unnecessary problems while increasing reliability.

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Document with Preformed Loop Size Reference Table. The detection height of the Inductive field is considered to be equal to 66% of the shortest side

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Document with Loop Inductance by Size/Turns Reference Table. All values are calculated using 14Ga. wire and a loop having a 20’ twisted lead wire.

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