With Industry 4.0 and digitalization gradually entering the process industries, process instruments get assigned a new role. More and more so, they play a vital part in generating process information and evolve to what the industry calls smart sensors. With their increasing intelligence also comes complexity: being smarter means having more functionality and hence more parameters to adjust. SITRANS devices come with on-board maintenance and diagnostic functions such as self-test, drag indication, partial stroke tests and multiple adjustable limit values, and there is a whole range of further sophisticated functions to keep track of and use for process monitoring and control.