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Direct and Indirect Methods of Level Measurement

March 30, 2016

Effective level measurement plays a critical role in a broad range of industries like ethanol production, oil and gas production, pulp and paper mills, waste water management, mining, and biochemical plants. It enables organizations to determine the precise amount of liquids, solids or gases within their equipment, therefore ensuring safety and optimal performance.

There are direct and indirect methods of level measurement and an isolation valve helps ensure working efficiency within the measuring process.

Direct Method of Level Measurement

The direct method of level measurement involves the use of physical properties, like fluid motion, as well as thermal, optical and electrical properties. This direct measurement is often simple because measuring the level is just a matter of measuring the height of the substance in a vessel. A leading advantage (more…)

The Isolation Valve and the Benefits of In-Situ Calibration

March 5, 2016

process isolation takesIn-situ calibration of field instrumentation saves time and money for industrial organizations that utilize high volume tanks for fluids, slurries and gases. In the past, correctly calibrating a level transmitter, which is usually bolted to the side of a process tank, involved draining the tank, then cleaning the instrument before finally doing the calibration work. This caused expensive interruptions and the costs went even higher because this work was often completed back in the instrument shop. Now, however, companies can use an isolation valve to complete in-situ (on-site) calibration of their systems.

Saving Time on Complex Calibration Operations

One of the leading challenges for any firm completing off-site calibration work is that it often takes many hours to clean and demount the pressure or level transmitter from hard-to-reach places within the plant. They must then send the level transmitter to the (more…)