Fisher Controls International LLC

Roger Anders

Shawn William Anderson

Ted Dennis Grabau

Kurtis K Jensen

Kurtis Kevin Jensen

Methods and apparatus to use vibration data to determine a condition of a process control device are disclosed. An example apparatus includes a vibration monitoring circuit to: collect first vibration data associated with a process control device during calibration of the process control device; calculate an operating threshold of the process control device based on the first vibration data; collect usage information associated with the process control device, the usage information indicative of a remaining portion of useful life associated with the process control device; adjust the operating threshold based on the usage information, the adjusted operating threshold reflective of the remaining portion of useful life associated with the process control device; and determine a condition of the process control device if second vibration data associated with the process control device collected after the calibration exceeds the adjusted operating threshold.

Methods and apparatus to use vibration data to determine a condition of a process control device

Methods and apparatus for controlling multiple valves as a single valve based on a coordinated control signal are disclosed. In some examples, an apparatus includes a valve controller to be operatively coupled to a first valve and a second valve. In some examples, the second valve is to be operatively positioned in series with the first valve. In some examples, the valve controller is to control a position of the first valve and a position of the second valve based on a coordinated control signal to be received by the valve controller.

Methods and apparatus for controlling multiple valves as a single valve based on a coordinated control signal

Methods and apparatus to use vibration data to determine a condition of a process control device are disclosed. An example method includes collecting first vibration data from a first sensor operatively coupled to a process control device during a calibration. The example method further includes calculating an operating threshold of the process control device based on the first vibration data, and determining a condition of the process control device if second vibration data associated with the process control device collected after the calibration exceeds the operating threshold.

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Marshalltown, IA, United States of America

Roger Anders