Level control demonstration unit Experimental introduction to control engineering using an example of level controlled system Features - experimental introduction to control engineering using an example of level control - construction of the system with components commonly used in industry - digital controller with freely selectable parameters: P, I, D and all combinations - Optional I&C software RT 650.40 via USB Learning objectives/experiments - fundamentals of control engineering - latest industrial control engineering components: controllers, transducers, actuators - operation and parameter setting of a multifunctional state-of-the-art digital controller: e.g. parameter setting as P, PI and PID controller - investigation of disturbance and control response - influence of different controller parameters on stability and control quality - investigation of the properties of the open and closed control loops - processing of process variables using external equipment, e.g. plotter or oscilloscope - together with accessory RT 650.40: familiarisation with and use of I&C software Specification [1] level control with components commonly used in industry [2] controlled system: transparent tank with overflow and scale [3] measuring element: pressure sensor for level measurement [4] multi-functional digital industrial controller [5] generation of disturbance variables by ball valve with scale in outlet [6] actuator: electromagnetic proportional valve [7] process variables X and Y accessible as analogue signals via lab jacks [8] large process schematic on front panel Technical data Transparent tank: 7L Storage tank: 15L, stainless steel Pump, 3-stage - power consumption: 100W - max. flow rate: 70L/min - max. head: 5,6m Pressure sensor for level measurement: 0...100mbar Electromagnetic proportional valve: Kvs: 1,1m3/h Controller: parameterisable as P, PI or PID controller Process variables as analogue signals: 0...10V Connection of external recording devices (e.g. oscilloscope, line recorder) via lab jacks 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1000x500x1070mm Weight: approx. 73kg