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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.
Top 50 Automation Companies of 2021: Green Muscles In
Nov 8, 2022 · The automation marketplace proved its resilience again in 2021 and returned to pre-pandemic levels. Despite advances in project engineering that reduced cycle times, automation projects in general are still long-cycle projects, and the overall market for systems took longer to recover than some of the more product-oriented and discrete automation businesses.
How to size and select your next pressure relief valve
Nov 4, 2020 · A pressure relief valve (PRV) is a safety device designed to protect a pressurized vessel or system in case of an overpressure event. An overpressure event refers to any condition that would cause pressure in a vessel or system to increase beyond the specified design pressure or maximum allowable working pressure (MAWP).
About Us - Control Media Brand - Control Global
Editorial. Len Vermillion, editor in chief Jim Montague, executive editor Madison Ratcliff, digital editor Sales. Keith Larson, group publisher Greg Zamin, sales representative Jeff Mylin, sales representative Digital Marketing Services Group. Carrie …
Understanding switch configurations - Control Global
Nov 25, 2019 · Hiten A. Dalal, P.E., PMP Control & Automation Engineering team leader [email protected] A: Prompted by the important topic you brought up, I will not only answer the question, but I will give a brief overview of switches and switching in general.This subject is also discussed in my handbook, in Chapter 4.21 of the 4th edition of the 2nd Volume.
Automatic tank gauging 101 - Control Global
Mar 15, 2021 · The purpose of tank gauging is to measure the contents of tanks and vessels for inventory control and custody transfer. Most process plants have tanks that hold feedstock or finished products, and some may have dozens of large tanks, often 50 feet or more in height and diameter, holding millions of dollars’ worth of feedstock or product.
Dos and don'ts of control room design | Control Global
Apr 26, 2019 · Among engineers, “design process” is a well-understood term. It may have slightly different elements across the various disciplines, but generally, it’s a methodical series of steps in which the mathematics and engineering sciences are applied in an iterative manner to optimally meet a stated objective.
The benefits and challenges of cascade control
May 24, 2023 · There are several techniques that enhance PID, termed advanced regulatory control. These were developed in the 1930s-40s and include reset feedback to prevent windup, override to prevent excessive or unsafe conditions, feedforward, and ratio to correct an anticipated upset.
Basics of PID in 25 points - Control Global
Dec 17, 2018 · Measure each flow, inventory (e.g., level or weight and pressure), every process variable for safe operation and environmental protection, and each indicator of process efficiency and capacity (e.g., composition, quality, pH, and temperature) with sufficient accuracy (particularly least drift and best repeatability), speed and rangeability.
Back to Basics: Understanding how ultrasonic continuous level ...
Aug 7, 2013 · Figure 3. Bubbles, foam, vapor and internal structures make ultrasonic measurement very difficult. Basically, the transmitter divides the time between the pulse and its echo by two, and that is the distance to the surface of the material.