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DAVID W. SPITZER'S E-ZINE

TECHNICAL AND MARKETING SERVICES
FOR INSTRUMENTATION SUPPLIERS AND END-USERS

This issue sponsored by Emerson Process Management

MARCH 2007

Differential Pressure Flowmeters (Part 1 of 4)

PA differential pressure flow measurement system consists of a differential pressure primary flow element and a differential pressure flow transmitter. When the flow of a fluid in a pipe passes a restriction in the piping system, the pressure in the piping system is reduced. Most differential pressure primary flow elements are designed, constructed and operated in a manner such that the flow rate is proportional to the square root of the pressure drop across the restriction. click for more...

Guide Helps Consumers Compare Magnetic Flowmeters

One problem that users and specifiers of flowmeters face is the difficulty in comparing the specifications and performance of different flowmeters. Specifications are often written to emphasize positive features and minimize negative features. click for more...

Handling Hazardous Waste
Combustion-Air Metering Problems

Some years ago, I was assigned to upgrade the instrumentation on a hazardous waste incinerator. For those of you not familiar with hazardous waste incineration, the fundamental process involves generating a large flame into which wastes are injected and subsequently thermally reduced to their products of combustion, which do not pose a hazard to the environment. click for more...

 

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