Valve positioner
First Claim
1. A smart valve positioner comprisinga housing of a smart valve positioner,a housing cover having an open position and a closed position,an open-close detector detecting whether the housing cover is in the open position or in the closed position,a control circuitry provided within said housing and connectable to a field control line,a local user interface with one or more buttons and optionally a display for operating the valve positioner, wherein the one or more buttons of the local user interface are exposed and directly user-operable in the open position of the housing cover, and the one or more buttons of the local user interface are covered by the housing cover while indirectly user-operable through the housing cover from outside the housing in the closed position of the housing cover, and wherein an operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is detected by the open-close detector to be in the open position or in the closed position.
2 Assignments
0 Petitions
Accused Products
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.
13 Citations
12 Claims
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1. A smart valve positioner comprising
a housing of a smart valve positioner, a housing cover having an open position and a closed position, an open-close detector detecting whether the housing cover is in the open position or in the closed position, a control circuitry provided within said housing and connectable to a field control line, a local user interface with one or more buttons and optionally a display for operating the valve positioner, wherein the one or more buttons of the local user interface are exposed and directly user-operable in the open position of the housing cover, and the one or more buttons of the local user interface are covered by the housing cover while indirectly user-operable through the housing cover from outside the housing in the closed position of the housing cover, and wherein an operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is detected by the open-close detector to be in the open position or in the closed position.
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2. A valve assembly comprising
a valve; -
an actuator; and a valve positioner;
the valve positioner further comprisinga housing, a housing cover having an open position and a closed position, an open-close detector detecting whether the housing cover is in the open position or in the closed position, a control circuitry provided within said housing and connectable to a field control line, a local user interface with one or more buttons and optionally a display for operating the valve positioner, wherein the one or more buttons of the local user interface are exposed and directly user-operable in the open position of the housing cover, and the one or more buttons of the local user interface are covered by the housing cover while indirectly user-operable through the housing cover from outside the housing in the closed position of the housing cover, and wherein an operation mode of the local user interface is configured to be different depending on whether the housing or housing cover is detected by the open-close detector to be in the open position or in the closed position.
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Specification