Smart Valve Interface (SVI) is both a smart positioner and PID loop controller, just launched by Masoneilan. Position and pressure sensors integrated within the SVI unit enable it to offer a wide range of diagnostic functions. Using HART communications at present, it can be upgraded to handle other fieldbuses. In addition, Valvue permits the recall of stored test data. This is claimed to be the first loop powered digital valve positioner plus process controller in the same enclosure.
Dresser Valves and Controls, Tel: 01732 8648785; Fax: 864877.