BD Loop Proper Phasing Installation

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Each BD Loop is pre-phased at the factory. This phasing relationship is clearly marked on every loop. The marking consists of a black mark on one of the loop leads as it exits the loop yoke. By placing both loops with the black phase indicator flowing in the same clockwise or counter-clockwise direction and wiring the loop lead-in in series as shown above, the loops will be properly phased. This feature takes the guesswork out of installing two loops to one detector.