The Trainer provides a comprehensive experimental introduction to the fundamentals of control engineering using an example of flow control.
A pump delivers water from a storage tank through a piping system. The flow rate is measured by an electromagnetic sensor, which permits further processing of the measured value by outputting a standardized current signal. A Rota meter indicates the flow rate. The controller used is a state-of-the-art digital industrial controller. The actuator in the control loop is a control valve with electric motor operation. A ball valve in the outlet line enables defined disturbance variables to be generated. The controlled variable X and the manipulating variable Y are plotted directly on an integrated 2-channel line recorder. Alternatively, the variables can be tapped as analogue signals at lab jacks on the switch cabinet. This enables external recording equipment, such as an oscilloscope or a flatbed plotter, to be connected.
FEATURES:
•    Fundamentals of control engineering
•    Real industrial control engineering components: controllers, transducers, actuators
•    Experimental introduction to control engineering using an example of flow control
•    Construction of the system with components commonly used in industry
•    Digital controller with freely selectable parameters: P, I, D and all combinations
 
SPECIFICATION:
Storage tank: 30L
Centrifugal pump
•    Power consumption: 250W
•    Flow rate: 150L/min
•    Head: 7m
•    Speed: 2800min-1
Rota meter: 0…1960L/h
Electromagnetic flow rate sensor: 0…6000L/h
Control valve with electric motor
•    Kvs: 5,7m3/h
•    Stroke: 5mm
•    Characteristic curve equal-percentage
•    Valve-opening position sensor: 0…1000Ω
Line recorder
•    2x 4…20mA
•    Feed rate 0…7200mm/h, stepped
Controller
•    Process variables X, Y as analogue signals: 4…20mA
•    Power required for operation
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase