Valve positioner
AssigneeMetso Flow Control Oy
InventorsTero IHALAINEN, Juha YLI-PETÄYS
Life of this patent
Estimating the term…
Abstract
A smart valve positioner is provided with a local user interface with but-tons and a display inside a positioner housing under a housing cover for locally operating the valve positioner. The valve positioner is further provided with a detector detecting whether the housing or the housing cover is open or closed. The operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is open or closed. For example, a larger variety of operations may be available when the housing or housing cover is open.
Claims14
A smart valve positioner comprising a housing and a housing cover, the housing encompassing control circuitry connectable to a field control line, and a local user interface with one or more buttons and optionally a display for operating the valve positioner, wherein the valve positioner further comprises an open-close detector detecting whether the housing or the housing cover is open or closed, and the operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is open or closed.
A valve assembly comprising
- a valve;
- an actuator;
- and
- a valve positioner;
- the valve positioner further comprising a housing and a housing cover, the housing encompassing control circuitry connectable to a field control line, and a local user interface with one or more buttons and optionally a display for operating the valve positioner, wherein the valve positioner further comprises an open-closed detector detecting whether the housing or the housing cover is open or closed, and the operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is open or closed.
(canceled)
Dependencies are inferred from the claim text.