Dresser Masoneilan SVI* (Smart Valve Interface, Advanced Performance) is a 32 bit microprocessor digital valve positioner with a local interface that control a pneumatic actuator using a two-wire 4-20 mA or Foundation fieldbus signal. The instrument offers modular design for easy service and upgrading. Its universal design offers ease of retrofit in place of existing analog positioners on Masoneilan or non-Masoneilan pneumatic actuators, either single-acting or double-acting.
Dresser Masoneilan SVI positioner controlls control valve or other device through their actuator position. Input signal is converted to pneumatic output affecting required actuator positioning.
Input signal can be either:
Positioners are widely used in process industries such as:
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