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Control Global features news and analysis of process control and automation technology to help managers and engineers maintain and optimize systems for today's process industries.
Coriolis Flow Measurement Technology Guide: Overview, …
Jan 27, 2023 · Coriolis is one of the most precise measurement technologies in existence. With the ability to directly measure mass flow in both liquids and gases in a multitude industry applications, Coriolis technology is often a go-to technology selection given its …
Linear or equal percentage valves: When should I use which?
Feb 26, 2015 · Béla Lipták [email protected] A. Use a linear valve when controlling flow, liquid level, pressure and composition, and an equal-percentage valve when controlling temperature. In over 60 years working with control loops, almost all the cases where I had to change valve characteristics, I have been replacing equal-percentage with linear.
Motion agrees to buy Canadian distributor | Control Global
Sep 23, 2024 · Motion Industries Inc. reported Aug. 14 that it’s agreed to buy the operating assets of LSI Supply Inc. in Windsor, Ontario, and its sister company 273 Ontario that trades as LSI. The transaction is expected to close later this month, and is subject to customary closing conditions. LSI Supply has five area locations and distributes …
Role of FL and XT in sizing control valves | Control Global
Apr 5, 2024 · The X T and X TP factors in Figure 2 are provided by the valve manufacturers. The X T factor (critical pressure drop) describes how close the compressible flow is from choking (its velocity reaching sonic velocity), which occurs when P 1 /P VC exceeds 2.0. The choked flow also depends on piping geometry and the thermodynamic properties of the fluid. Even if the valves are tested, they’re ...
Realism for dynamic simulation for control testing
Sep 24, 2024 · Russ Rhinehart started his career in the process industry. After 13 years and rising to engineering supervision, he transitioned to a 31-year academic career.
Rockwell Automation’s expanding technology strategy
Nov 10, 2023 · Resilient. Agile. Sustainable. These are the three key outcomes Rockwell Automation is focused on creating for users of its technologies, said Blake Moret, chairman and CEO of Rockwell Automation during the opening keynote at Automation Fair 2023.
ProComSol - Control Global
ProComSol, Ltd (Process Communications Solutions) was founded in 2005 dedicated to providing products for users of HART technology. We established our reputation with reliable USB HART modems certified by the HART Communication Foundation.
Controllers: Cascade, Scan Time, PID Tuning | Control Global
Jan 8, 2013 · I have a cascade control system with the master (outer) loop controlling the space temperature by adjusting the setpoint of a slave (inner loop), which controls the cold air supply temperature by throttling a chilled water flow to the air cooler.. My question is this: When should you "slow down" a PID loop by making the loop update time (and in the case of our controller, the task scan rate ...
Realizing ratio control - Control Global
Mar 7, 2022 · Michel, how do we decide whether to use ratio control or flow-feedforward? Michel: Ratio control is preferred over flow-feedforward control, so the flow controller can correct for valve nonlinearities and pressure disturbances, and the operators and process engineers can be more involved in seeing and understanding how control system is working in concert with the PFDs.