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Based on our HP/Agilent heritage, with over 35 years of optical measurement expertise, we stand for top quality and well-designed solutions.

AP Sensing’s unique code-correlated OTDR technology, combined with asset visualization software, precisely locates hot spots and alarm conditions in real time – extremely valuable assets remain securely protected.ĪP Sensing offers distributed optical sensing technology (DTS, distributed temperature sensing, DAS, distributed acoustic sensing, DVS, distributed vibration sensing) for a wide range of applications. Thanks to the combined efforts of a cross-functional team, the Linear Heat Series is optimally installed, providing a safe and effective DTS deployment. This ensures that all four walls (which generate 1.8MW) can be effectively monitored, despite direct sunshine, cool temperatures at night or in the shade, and thermal effects from wind. The 16km sensor cable is connected to the heat sink for the LEDs and is then routed throughout the walls in a tight pattern with 50cm spacing. Two of these measure 70m x 10m, and two 40m x 10m, and together they contain the 2 million LEDs. Media walls: There are enormous media walls on each side of the tower below the clock.

The four sensor cables can be divided into 256 zones, each zone with its own alarm criteria, which was ideal for covering the media panels, platforms and cable trays in each of the 4 sections. This architecture results in complete system redundancy, even in the unlikely event of a fiber break or a system fault. Planning together with local partners, it was decided to divide the tower areas into four sections, to ensure an efficient installation and the highest performance.

Four DTS devices were installed as explained below, to ensure continuous, fully-redundant monitoring in real-time. To ensure the most modern and rugged system of heat detection and monitoring available, AP Sensing’s Linear Heat Series was selected. In addition to the construction challenges and intricate workings of the huge clock, the tower is illuminated with 21,000 white and green lights, and two million LED lights. It contains the tallest hotel, the tallest clock tower, and the largest clock face in the world.

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