RT 674 Flow / Level Control Demonstration Unit Didactic Equipment Vocational Education Equipment Process Control Trainer
Experimental introduction to control engineering using an example of a control led system for flow rate, level and level via flow rate (cascade control) Features - experimental introduction to control engineering using an example of flow and / or level control - two controllers permit control in cascade mode - construction of the system with components commonly used in industry - digital controllers 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 - investigating the response of the various controlled systems - control of -- flow rate -- level -- level via flow rate (cascade) - together with accessory RT 650.40: familiarisation with and use of I&C software Specification [1] experimental unit for control engineering experiments [2] level and flow control individually, and cascaded [3] level measurement by pressure sensor [4] flow rate measurement by rotameter with electrical output [5] generation of disturbance variables by ball valves with scale [6] tank with overflow and scale [7] control valve: electromagnetic proportional valve [8] 2 digital industrial controllers, parameterisable as P, PI or PID controllers, cascade [9] large process schematic on front panel [10] key process variables accessible as analogue signals at lab jacks Technical data Storage tank - stainless steel - capacity: 15L Pump, 3-stage - power consumption: 90W - max. flow rate: 83L/min - max. head: 6m Pressure sensor for level measurement: 0...100mbar Rotameter with electrical output: 0...600L/h Electromagnetic proportional valve: Kvs: 1,1m3/h 2x controllers: 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: 1000x500x1080mm Weight: approx. 73kg