lazos Archives - Instrumentacion y Automatizacion Industrial

Non-intrusive methods for measuring current in instrumented loops: clamp-on and diode test

A better way to measure a 4-20mA signal without interrupting the loop is to do so magnetically, using a clamp-on milliammeter (sometimes called a clamp meter). Modern sensors

Controller Tuning Course

Control Loop “Tuner” Tools and Utilities (Part 2 of 2)

In the post I showed you 4 of the 9 tools for tuning PID loops that I always use (with good results), which are: Process Historian Spreadsheet or Excel (PID Tuning)

Controller Tuning Course

Control Loop “Tuner” Tools and Utilities (Part 1 of 2)

A control loop tuner (Control Engineer, Automation Technician, Instrument Technician, etc.) must be proficient in the use of a variety of tools to be effective in any control loop.

Controller Tuning Course

Identifying process and system hazards during a Loop Tuning: the operator is our best friend

When students (and also when I was a student) cover the topic of PID control in an instrumentation program or course, they usually do so using simulation and/or process software.

Practical Instrumentation Course

Troubleshooting control loops: safety considerations for current measurement

A fundamental principle in solving problems in instrumentation systems is that all instruments have at least one input and at least one output, and that the

Practical Instrumentation Course

Troubleshooting current loops with voltage measurements: when all we have is a voltmeter

If we cannot interrupt the loop due to operational reasons, and no component (diode) is pre-installed in the loop, and furthermore, if we do not have an instrument to