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Industries Services Company "APCO's personnel have worked closely with our own process control engineers to form a solid team with exceptional results. . .  APCO will do what they say they can do."
Vincent Memmot, General Manger Refining, Flying J
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Useful Tips
  PID Tuning Guide
Is tuning PID loops a science or an art? This guide shows both, the classic Ziegler-Nichols open and closed loop methods and a practical "looks good" method.

  Using the Proficy Historian Excel Add-in
    This guide explains the advanced functionality of the GE Proficy Historian when combined with Microsoft Excel. Click Here . . .
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