Blending or mixing tanks are used in many processes in the chemical industry for combining different fluids, or combining fluids with solid media. Mixing vessels may be at ambient or elevated temperatures to enhance dissolving. Level measurement technology is needed to monitor and control addition of media and prevent overfill/ overspill from the vessel. Common challenges include the presence of corrosive media, condensation, foam and risk of media build-up if contents are viscous or sticky. Usually, the blending or mixing tank is equipped with an agitator, so non-contacting and/or low-intrusion instrumentation is desirable so as to not interfere with internal obstructions.
Emerson's Rosemount non-contacting radar level transmitter portfolio combined with the Rosemount 2100 Level Switch series provide ideal level measurement solutions that can withstand harsh and changing conditions.
The Rosemount 2120 Level Switch provides easy to install, reliable level detection and control. 3 rdparty IEC61508 (SIL2) safety and hygienic certification with choice of outputs makes it suitable for a wide range of applications. It has no moving parts, needs no calibration and is virtually unaffected by process conditions. Adjustable switching delay prevents false switching in turbulent applications. Understand what is going on with your process- the visible heartbeat LED provides device status and health, and magnetic test point provides an easy-to-use functional test.