G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 1/74 (2006.01) G01N 33/28 (2006.01)
Patent
CA 2620006
An industrial field device (10, 30, 40) provides information indicative of a process variable. The field device (10, 30, 40), includes a controller (24), communication circuitry (20, 34), a process variable sensor (28) and measurement circuitry (26). The communication circuitry (20, 34) is coupled to the controller (24). The process variable sensor (28) has an electrical characteristic that changes based on a variable of a process fluid. The measurement circuitry (26) is coupled to the process variable sensor (28) and coupled to the controller (24). The controller (24) is configured to generate communication via the communication circuitry (20, 34) relative to the process variable, and to provide an indication of sand flow or other solids in the fluid.
Cette invention concerne un dispositif de terrain industriel (10, 30, 40) qui fournit des informations relatives à une variable de processus. Le dispositif de terrain (10, 30, 40) comprend une unité de commande (24), un circuit de communication (20, 34), un capteur de variable de processus (28) et un circuit de mesure (26). Le circuit de communication (20, 34) est couplé à l'unité de commande (24). Le capteur de variable de processus (28) présente une caractéristique électrique qui change en fonction d'une variable d'un fluide de processus. Le circuit de mesure (26) est couplé au capteur de variable de processus (28) et couplé à l'unité de commande (24). L'unité de commande (24) est conçue pour générer une communication par le biais du circuit de communication (20, 34) concernant la variable de processus et pour fournir une indication d'écoulement de sable ou d'autres solides dans le fluide.
Eryurek Evren
Karschnia Robert J.
Wehrs David
Marks & Clerk
Rosemount Inc.
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