stillwagon wrote:The still controller has a temperature probe at the top of the column. The controller then adjusts and maintains a steady temperature by controlling the elements. On start up it will run all three elements, then as it nears the desired temp it drops out one element and uses the other two as needed to maintain a steady temp.
stillwagon wrote:When the still is running and in 100% reflux, the temperature is stable. But when the VM valve is opened, equilibrium can be disturbed by the amount of power applied, pushing the tails through with the hearts, which also raises the temperature of the column some. By using the temperature as a monitoring point, I avoid running the still too hard, especially with a lower abv wash. I do my cuts mostly by scent and taste, so this just adds a little more control. It also has a safety feature based by temp, should the setpoint be exceeded by 20 degrees, the still is shut off. So if I have a setpoint of 185 degrees, and the column temp hits 205, the still is shut down. My cooling system is a recirculated system. Should the pump quit, or it pop a hose, and I don't see it or notice, it prevents any further problems.
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