For tailored advice and product selection/configuration assistance, please contact a sales representative. 20 Introduction and Fundamentals > MPS PA Mixing Station Function The mixing station mixes different recipes from three reservoir tanks. The liquid from one of the three reservoir tanks is pumped into the main tank in a controlled manner by opening the respective two-way ball valve. The finished mixture can be pumped to the next station via a second pump or pumped back to the reservoir tank. Measurement and Control The mixing station blends three raw materials according to a set recipe using a constant flow rate. An electro-magnetic flow sensor records the flow rate, which is displayed using a variable-area flowmeter. The output signal from the flow sensor is converted to a standard signal from 0 – 10 V. The mixing station can also be actuated through binary means using the integrated comparator. The controller adjusts the necessary flow rate via the pump with analog control using a simple two-point controller or various dynamic controllers such as P, PI or PID. This permits a clear explanation of control technology. Always the Right Mixture The mixing station includes pumps, valves, sensors, and electronic modules for signal conversion, providing a versatile selection from process engineering. Sensors detect container levels and prevent overflow using extra sensors, eliminating overflow risks. Signal converters convert all analog signals to standard signals from 0 – 10 V. Practical for the purpose of experimentation: integrated comparators also supply purely binary signals. Two-way ball valve with rack and pinion combination with a constant torque characteristic across the entire swivel range and directly connected NAMUR valve. MPS PA Mixing Learning System Station with optional equipment
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