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New Generation of Series 3730 Positioners

The new positioners for 4 to 20 mA applications combine the latest technological developments with the proven device base known from the Type 3730-1 and Type 3730-3 predecessor models. 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. Operation continues to rely on the rotary pushbutton taken over from the successful Series 3730. TROVIS 3730-3 communicates over the HART® 7 protocol and comes with the proven EXPERTplus valve diagnostics with optimized features. To facilitate operation, the positioners are fitted with a plain-text display that indicates the condensed state according to NAMUR, measured values, start-up settings as well as messages in English or German.

Further reading

Exhibitor: SAMSON AG

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