Abstract:
Diagnosing operation of an impulse piping line (112) coupling a sensor to the process fluid contained in a container or flowing in a pipe in an industrial process is provided. A vibration source (144) transmits a vibration signal through the piping and a vibration signal receiver (146) receives the vibration signal. The operation of the impulse piping line (112) is diagnosed, such as failure or impending failures, based upon the received vibration signal.
Abstract:
A leak detection system (300) is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate (302) is coupled to the valve in the pipe in-line with the fluid flow. A sensor (316) couples to the flow and provides a signature output. A leak detector (324) is coupled to the sensor (16) and adapted to detect a leak through the valve based upon the signature output.
Abstract:
A field mountable dedicated process diagnostic device (100) is used for diagnosing operation of an industrial control or monitoring system. An input (102) is configured to receive at least one process signal (112A-N) related to operation of the industrial process. A memory (44) contains diagnostic program instructions configured to implement a diagnostic algorithm using the process signal. The diagnostic algorithm is specific to the industrial process. A microcontroller (42) performs the diagnostic program instructions and responsively diagnoses operation of the process based upon the process signal.
Abstract:
A diagnostic device (100) for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flowmeter, and in one example an acoustic flowmeter. A transducer can also be used and a frequency response, such as resonant frequency, can be observed.
Abstract:
A system for predicting fouling and corrosion of a combustion system in an industrial process includes a pipe (102) , a restrictive element (104) , and a fouling and corrosion detector (110) . The pipe (102) contains a fuel. The restrictive element (104) is coupled to the pipe (102) and the fuel passes through the restrictive element (104) . The fouling and corrosion detector (110) is coupled to the pipe (102) and is adapted to detect a characteristic signature of the restrictive element (104) and to generate an alarm if a change in the detected signature exceeds a predetermined limit relative to a baseline signature.
Abstract:
A diagnostic device (100) for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flowmeter, and in one example an acoustic flowmeter. A transducer can also be used and a frequency response, such as resonant frequency, can be observed.
Abstract:
A wireless process device (14) for use in an industrial process control or monitoring system (10) includes a power source (36) configured to power the process device (14). Diagnostic circuitry (34) is configured to diagnose operation of process device (14) and provides a diagnostic output. Wireless communication circuitry (32) transmits information over a wireless communication link (28).
Abstract:
A leak detection system is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate is coupled to the valve in the pipe in-line with the fluid flow. A sensor couples to the flow and provides a signature output. A leak detector is coupled to the sensor and adapted to detect a leak through the valve based upon the signature output.
Abstract:
A modular transmitter has an outer housing with a wall forming an interior cavity in which a control module is inserted. The wall has one or more ports therein that are connected to pressure conduits. When the control module is fully seated, the ports align with internal passageways in the control module that lead to control components in the control module The control module further has an electrical circuit supported on an end thereof that is toward the inner end of the cavity when the control module is inserted and the circuit has components that removably mate with further elements mounted on the end wall of the cavity . These connections may include electrical contacts , and also rotationally adjustable components that have set points and which are coupled to set point adjustment and control shafts that are accessble from the opposite side of the end wall from the cavity . The coupling to the rotatable shafts permits not only rotationally driving the circuit components, but also accomodates some offset or misalignment between the two parts. Preferably, the coupling is a hook and loop type fastener that has two portions which can be separated in an axial direction, and will easily recouple for driving.