Closed-loop control troubleshooting By Jacques Smuts, PhD, PE Automation Basics Summary By Jacques Smuts, PhD, PE Every plant in the process industry most likely has several control loops that do not ...

Finding and fixing process control loop problems that PID tuning cannot correct By Mark Coughran Plant engineers and technicians are frequently asked to tune the controller when a control loop’s ...

Supply chains are in flux and process operations need to be ready and able to adapt to both changing inputs and a need for ...

Closed loops are the key element of temperature control. They differ from open loop control by the fact that the input (the “Sensed Variable” aka “Controlled Variable,” see Figure 1) provides feedback ...

A variety of modules are offered that allow control of temperature, flow, and pressure; the single- and dual-loop temperature modules also provide ramp-and-soak controls. Up to 16 of these modules can ...

Off-the-shelf process controllers often have 4- to 20-mA (sometimes 0- to 20-mA) output options for adjusting speed, pressure, temperature, or some other parameter in a closed-loop control system.