Computerized Temperature Control Trainer

Computerized Temperature Control Trainer

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The Trainer provides a comprehensive experimental introduction to the fundamentals of control engineering using an example of temperature control.
A circulating pump delivers water within a closed circuit.  
A hand-operated valve can adjust the flow rate of water.  
Dead times can be represented by the use of different lengths of process delay.  
A thyristor power controller is used as the actuator.  
The controller used is a state-of-the-art digital industrial controller.  
It can be configured as a continuous or a switching device, and can activate the heater via the actuator and / or the fan.  
The controlled variable X and the manipulating variable Y are plotted directly on an integrated 2-channel line recorder.  
The loop also contains a screw-in heater, a heat exchanger with fan, and three integrated thermocouples for temperature measurement.  
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.
Process control software is optionally available.

FEATURES:
Experimental introduction to control engineering using an example of temperature control
Construction of the system with components commonly used in industry
Digital controller with freely selectable parameters: P, I, D and all combinations

SPECIFICATION:
Pump, 3-stage :
Power consumption: 70W
Flow rate: 3,6m3/h
Head: 4m
Screw-in heater: 2kW
Heat exchanger: approx. surface area 2,8m2

Fan :
Power output: 250W
Flow rate: 780m3/h
Differential pressure: 430Pa
Speed: 2880min-1
Thermocouple: type J: 0…200°C
Thyristor power controller max. Load current: 25A

Line recorder :
1x 4…20mA, 1x 0…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