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Automation & Control

Dilute-phase Pneumatic Conveying: Instrumentation and Conveying Velocity

Dilute-phase pneumatic conveying systems must be operated in a certain sequence and have sufficient instrumentation and operating controls to assure reliable operation and prevent problems. This article discusses two subjects that are important for successful dilute-phase conveying. Discussed below are…

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Implementing a Corrosion-Under-Insulation Program

Corrosion to the external surface of process piping and vessels that is hidden under the insulation is referred to as corrosion under insulation (CUI). Aging piping and equipment in chemical plants and petroleum refineries have made CUI detection and assessment…

Sensors Save the Day

The chemical processing industries (CPI) rely heavily upon the use of sensors to measure everything from weight to temperature to pH to pressure. Because sensors are used for measurements that affect critical processing elements, such as quality, efficiency and safety,…

A high-accuracy, lightweight Coriolis flowmeter

The Sitrans FC410 (photo) is a new Coriolis flowmeter that features a measuring accuracy of 0.1% of flowrate. Weighing only 10 lb, this compact meter communicates with all common process control systems and can be integrated easily into both existing…

Asset Management’s Next Act

In a culmination of more than three years of work by teams from across the globe, the International Organization for Standardization (ISO; Geneva, Switzerland; www.iso.org) on January 10 published the ISO 55000 series of standards surrounding asset management systems (AMS).…

A bidirectional flow controller that also controls pressure

The new MCD-Series bidirectional controllers control mass and volumetric flowrate and absolute pressure of gases in two flow directions. The controller’s dual-valve design accommodates process-control requirements in many applications, including gas analysis, leak testing and environmental monitoring. The controller has…

Perform more simulations with this multiphysics software

Last month saw the release of COMSOL Multiphysics Version 4.4, with a number of upgraded tools for multiphysics simulations. Among the new features are: a new Desktop interface for Windows with a ribbon design that provides easier navigation; a completely…

This Coriolis meter is compact, but still accurate

The Sitrans FC410 (photo) is said to be the lightest, most compact Coriolis flowmeter available, and features a high measuring accuracy of 0.1%. The device has dimensions of 265-mm length, 280-mm height and 90-mm width, and a weight of 4.6…

Analyze headspace components with this sampler

The HS-20 Series of headspace samplers provide a reliable and robust headspace solution for any application analyzing volatile components in a difficult matrix. The HS-20 Series consists of two modules: a loop model for the traditional static headspace methods, and…

This module brings pH/ORP measurements to the digital age

The Sencom platform-product series now includes modules for the digital measurement of pH and ORP (oxidation-reduction potential), joining the existing FLXA21 two-wire pH/ORP transmitter. The platform consists of a Sencon module, the FU20F pH/ORP sensor, a Sencon cable and the…