The SMAR DT301 intelligent concentration density transmitter is developed for continuous online measurement of liquid concentration and density directly in the industrial process. Its pioneer technology consists of a capacitive type differential pressure sensor coupled to a pair of pressure repeaters immersed in the process. A temperature sensor is located between the two pressure repeaters and is used to compensate for the temperature variations in the process fluid. Dedicated software calculates the fluid density.
Designed for process control applications, these two- wire transmitters generate a 4–20 mA signal proportional to the density. Digital communication for remote calibration and monitoring is also provided. These units are also available with Profibus PA and Foundation Fieldbus ports.
Advantages include easier mechanical installation since it is a single integrated unit and easy wiring as it is two-wire loop powered requiring no auxiliary supply. Unlike nuclear density transmitters, the DT301 requires no special permits, handling or swipe tests. This makes the DT301 an all-in-one simple cost effective solution with an accuracy of 0,03%.
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