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Title: Clamp-On Gas Flow Technology Advancements Increase Performance And Diagnostic Capabilities For Check Metering And Custody Transfer Applications
Author: Mark Imboden
Source: 2008 Appalachian Gas Measurement Short Course
Year Published: 2008
Abstract: The recent buzz created by the clamp-on wide beam technology in the gas measurement world has compelled even the gas industry skeptics among us to take notice. Rapid acceleration of successful installations across the globe and the surprising performance results being obtained (as shown in the following pages) has only added fuel to the excitement. Field clamp-on gas fl owmeters provide a unique tool for solving fl ow related challenges without interrupting the operation of a gas pipeline. This paper describes how to utilize this technology for ideal conditions as well as some of the most challenging fl ow applications we encounter. Externally mounted sensors have also proven to have much greater immunity to valve noise that has plagued the wetted sensors and can signifi cantly reduce the cost of Ultrasonic Meter Station Designs. In addition, the clamp-on technologys unique capability to auto zero without shutting off your fl ow provides the user a way to improve low fl ow performance, check for leaking valves and other diagnostic benefi ts.

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