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Powder and Bulk Engineering
Monday, September 01, 2014
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Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
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Item Details:
Publication Date: 03/2003
Pages: 4
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PDF Format
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$7.50
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Ultrasonic level sensor makes sense

A company installs a highpower, low-frequency noncontact ultrasonic level sensor in its surge bin to continuously measure carbon black levels.

Firestone Building Products Co. [a division of Bridgestone/Firestone Inc.], Prescott, Ark., manufactures rubber roofing and pond-lining systems for commercial, industrial, and home use. One of the ingredients in the rubber-making process is carbon black, which the company stores in a surge bin. Previously, the company used four proximity switches to measure the carbon black level in the surge bin and control the surge bin's filling and discharging. However, the carbon black caused the proximity switches to fail frequently, which increased maintenance costs and process downtime and decreased process efficiency. To solve these problems, the company worked with an ultrasonic sensor supplier to replace the four proximity switches with one noncontact ultrasonic level sensor.

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