Asset condition monitoring versus performance monitoring—what’s the difference? And, analyzing and forming decisions on the data from this monitoring—should it be done within the company or in the cloud? These questions are the subject of a Control Engineering magazine article, Should assets be monitored in-house or in the cloud? Emerson’s Brian Joe opens the article […]
Each safety instrumented function (SIF) including its sensor, logic solver and final control element must be periodically tested to make sure it will perform as designed in the event of a safety demand. These “proof tests” help to uncover and failure conditions which may have developed since the last proof test or safety demand. A […]
If you are unfamiliar with cryogenic processes such as those found liquefied natural gas (LNG) plants, then you may be unaware of some of their unique challenges. One big one is overfill prevention and inventory measurement for cryogenic storage tanks. A cryogenic tank is not opened during operation and normally not accessed for maintenance purposes […]
Boiler steam drum level control is critical in electrical power generation. Too high a level can mean water aspirating into the steam lines and causing damage to the turbine generator blades downstream. Too low a level can cause the boiler to dry and overheat. In a Power magazine article, Controlling Boiler Level When Operating Conditions […]
Some processes, such as oil & gas production, not only have to measure liquid levels but sometimes must measure sediment levels that can come along in the production stream and settle in vessels and tanks. This quick, 2:38 “How To” YouTube video, How Does the Rosemount Sand Switch Functionality Work?, shows how to change the […]
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