Instrumentation and control
Pneumatic signals
20–100 kPa and 3–15 psi signal ranges.
Instrumentation and control
20–100 kPa signal from percent
P = 20 + 80p/100→Instrumentation and controlPercent from 20–100 kPa
p = (P − 20)/80 × 100%→Instrumentation and controlProcess value from pneumatic signal
PV = LRV + (P−20)(URV−LRV)/80→Instrumentation and control3–15 psi signal from percent
P = 3 + 12p/100→Instrumentation and controlUniversal pneumatic signal conversion
P = Pmin + (X−Xmin)/(Xmax−Xmin)(Pmax−Pmin)→