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Ask the Automation Pros
This long-running series of discussions, curated by 2010 ISA Life Achievement Award recipient Greg McMillan, gathers responses from ISA subject-matter experts on technical topics important to industrial automation professionals, academics and students.
169 Results Found
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What are the Strengths and Weaknesses of Differential Pressure Flow Devices?
Each type of differential pressure flowmeter has a variety of pros and cons but the sheer number of types provides many options to the engineer -
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Why a Virtual Plant Is Crucial for Process Control Improvement
A virtual plant provides uses the actual plant’s control system & operator interface crucial for training and all levels of process control improvement. -
FeatureThe Benefits of Learning the Industrial Codes
Try to learn at least one relevant industrial code or one code section each year and seek to apply that knowledge often so that it is not lost. -
FeatureHow to Use High Rangeability Flowmeters and Valves to Increase Plant Turndown
To increase plant turndown, use control valves and flow measurements with the best low flow response and precision. -
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How to Specify a Capillary Seal Assembly
Be extremely careful to select knowledgeable technicians to install capillary seals. Many a pipefitter has pulled them out of the box and bolted them up without the proper gaskets and spacers. If this -
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How to Maximize Loop Coordination and Optimization
Employ setpoint filters, velocity limits and external-reset feedback to meet the process control objectives at your plant or facility. -
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How to Eliminate Split Range Oscillations in Process Control
Use precise valves, scheduled tuning, external-reset feedback, directional rate setpoint limits, and an enhanced PID to stop split range oscillations. -
FeatureThe Value of Process in Designing or Improving an Industrial Control System
Designing and/or improving a control system is practically impossible if the team does not understand the process. -
FeatureWhy You Should Not Use On-Off Valves as Control Valves
On-off valves should not be used as control valves (for throttling) and control valves should not be used as on-off valves (for isolation).