The tuning of proportional-integral-derivative (PID) control loops was an important change at HollyFrontier’s Navajo Refinery in Artesia, N.M. Its hands-on, “mandraulic” culture was no longer cutting ...
The CN142 Series universal temperature process controllers provide dual LED displays for local indication of process value and setpoint value, and control methods include on/off, PID, auto-tune, and ...
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