Process transmitters are differentiated from pressure sensors and pressure transmitters through their extensive functionality. With conventional pressure sensors, the measuring range is always fixed within a predefined pressure interval. With a process transmitter, on the other hand, the measuring range, the zero point and other parameters can be adjusted individually. This process is called turndown, scale-down or span adjustment. Process transmitters can be combined with various diaphragm seals.
What is a differential process transmitter?
A differential process transmitter is often used for pump and filter monitoring as well as level and flow measurements. When monitoring a closed vessel, the differential pressure transmitter determines the filling height by subtracting the superimposed gas phase from the hydrostatic pressure of the vessel contents. The transmitter can determine the volume of any tank shape and show it on the display.
Where are process transmitters used?
Process transmitters are used in many industrial measuring requirements. For example, when monitoring pumps, detecting levels in vessels or determining quantities during flow measurements in pipelines. Process transmitters are used when there are a variety of specific requirements for each individual measuring the location of the application on-site. For this reason, they are mainly employed in process engineering. But process transmitters are also used in machine building and plant construction, in the pharmaceutical industry and the food and beverage industry
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