Control Loops
First-Order Response (tau)
First-order 98% at 4 tau plus dead time.
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Control-loop screening calculators for PID form conversion, first-order response, and split-range checks. Enter gain, integral and derivative times, dead time, and valve split to estimate closed-loop response, tuning starting points, and range overlap. Every estimate states its assumptions and links to the loop guides for field tuning and stability verification.
Control Loops
First-order 98% at 4 tau plus dead time.
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Lag filter settle ~5x filter constant. Smaller alpha = heavier damping.
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Parallel PID: Ki = Kp/Ti, Kd = Kp Td.
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Classic ZN P/PI/PID gains from Ku and Tu.
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Split-range 0-50% drives valve A 0-100%, 50-100% drives valve B 0-100%.
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