The Importance of Using Tuned Positioners on All Control Valves

The Importance of Using Tuned Positioners on All Control Valves

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #82.   I was encouraged to omit positioners in one of my first projects in the 1970s as...

Use Wireless Transmitters for Diagnostics, Improvements and Metrics

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #75. In the 1970s, there was a concerted effort at the chemical company I worked for to provide...

How to Select the Best Control Valve Location

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #68. When I am in an instrument and valve repair shop, I see many more control valves than...
Use Field Analyzers to Measure Key Component Concentrations

Use Field Analyzers to Measure Key Component Concentrations

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #63. When we did process control improvements in the 1980s and 1990s, the major limitation was...

How to Use Simulation and Virtual Plants for Process Improvement

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #62.   During my career, modeling has been an essential part of developing a better...

How to Improve Setpoints

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #64. The classic case for process control improvement uses a figure that shows the mean and...
Benefits and Shortcomings of Vortex Flowmeters

Benefits and Shortcomings of Vortex Flowmeters

The following tip is from he ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #11. Every instrument is well suited for some applications and perfectly awful for others. These...
How Equipment and Operating Conditions Affect Process Dynamics

How Equipment and Operating Conditions Affect Process Dynamics

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #79. Do you lie awake at night wondering what the source of process dynamics is? Do you wonder...
Why a Virtual Plant Is Crucial for Process Control Improvement

Why a Virtual Plant Is Crucial for Process Control Improvement

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #99. Simulators for system acceptance testing (SAT), operator training systems (OTS), and...
How to Specify a Capillary Seal Assembly

How to Specify a Capillary Seal Assembly

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #14.   To master engineering design, you must master the art of trade-offs. An engineer is...
How to Maximize Loop Coordination and Optimization

How to Maximize Loop Coordination and Optimization

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #72. As a modeling and control specialist in the engineering technology department of a large...

The Good, the Bad and the Ugly of Magmeters

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Today’s Tip #12 is by Hunter Vegas. Early in my career, I was asked to specify a meter to measure the...

How to Eliminate Split Range Oscillations in Process Control

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #74. Just as split personalities cause mental instability, split ranged loops cause process...
Why You Should Not Use On-Off Valves as Control Valves

Why You Should Not Use On-Off Valves as Control Valves

The following tip is from the ISA book by Greg McMillan and Hunter Vegas titled 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. This is Tip #83.   Prior to the 1970s, you were not in much danger of getting a control valve that...

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