A Solution for Measuring Liquid Levels with Differential Pressure/Pressure Transmitters

摘要

Various meters are used for measuring liquid levels depending on the measurement fluid, pressure, temperature, and installation conditions. They include the non-contact ultrasonic type and radar type, and contact float type and pressure type. Since contact type level meters directly contact the liquid to be measured, the materials of wetted parts and the specifications of the connection for measuring pressure vary, and thus it is difficult to maintain the quality and design of these products in accordance with customers' diverse requirements. Meanwhile, customers are seeking to increase the operation efficiency of their plant production. To satisfy these needs, meter manufacturers are required to offer a product lineup that flexibly responds to such requirements. This paper introduces Yokogawa's solution to level measurement by using differential pressure and describes the digital remote sensor (DRS) differential pressure transmitter which solves problems regarding level measurement.