A new generation of valve positioners
Samson Controls
The new positioners for 4–20-mA applications combine the latest technological developments with the proven device base from the Trovis Type 3730-1 and Type 3730-3 predecessor models (photo). Both positioners are particularly rugged thanks to their no-wear, non-contact travel-sensing system. Two inductive limit contacts are available to reliably indicate both valve end positions. At the same time, the positioners’ air consumption has been reduced considerably by upgrading the pneumatics block. — Stand D49 (German Pavillion) — Samson Controls (China) Co. Ltd., Beijing, China