Overflow Protection, White Liquoir in a Digester
Kayden CLASSIC 800 Series Thermal Dispersion Flow, Level, Interface & Temperature Switch & Transmitter
Reliable and repeatable level control in the white liquor tank is critical in order to avoid overflows and/or contamination of the process upstream or downstream.
The combination of the process media and plant conditions cause instrument malfunctions and maintenance problems. For a level switch to perform well in this application it must resist failures caused by:
The Kayden CLASSIC 800 Series Thermal Dispersion Flow, Level, Interface & Temperature Switch & Transmitter is used to provide the critical control for level in the white liquor tank. The switch may be set to activate or deactivate the pump or feed valve using either of the independent relay contacts or the 4-20mA analog output.
Although often overlooked in level applications in favor of more complicated and expensive technologies, Kayden thermal dispersion switches provide digital repeatability and fast response in a rugged package that is not bothered by coating on the probe and will not drift, seize, or ever require calibration.
Easy Display Panel controls and display make set up fast and easy. Unlike float, paddle or gap switches Kayden switches feature all-welded sensors, no-moving-parts design, true digital electronics with auto-diagnostic functions, two independent relay timers, a Bypass Timer for auto pump restart, simultaneous process temperature monitor and a 4-20mA analog output corresponding to the process level (flow).
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