SA Instrumentation & Control Magazine – Front Cover Jan 2021.
While pumps and valves frequently get most of the attention, it is often the actuators and positioning solutions that are running the show.
Over the last few decades, the process plant instrument technician’s day in the plant has become busier. They see an increased work load in combination with increased pressure for plant uptime and reduced maintenance cost.
Their knowledge base must today span from mechanics to pneumatics, and hydraulics to data communication, i.e., system level interaction. They get less time to learn how to handle new instruments and to read IOM manuals. Knowledge on how to handle older design process instrumentation, based on springs, bellows, cams and manual calibration, is getting lost. With this in mind, PMV designed a simple to use yet very advanced modular digital positioner, which can be used on rotary or linear actuators, both single and double acting.