Computerized Temperature Control Trainer

Category:

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. The loop also contains a screw-in heater, a heat exchanger with fan, and three integrated thermocouples for temperature measurement. 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. 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.

  • 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
Pump, 3-Stage:
  • Power Consumption: 70W
  • Flow Rate: 3,6m 3/h
  • Head: 4m
Screw-in Heater:
  • 2kW
Heat Exchanger: approx. surface area 2,8m 2 Fan
  • Power Output: 250W
  • Flow Rate: 780m 3/h
  • Differential Pressure: 430 Pa
  • 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 ariables X, Y as analogue signals: 4…20 mA
  • Power required for operation: 230V, 50/60Hz, 1 phase
Dimensions and Weight
  • LxWxH: 1000x700x1750mm
  • Weight: approx. 120kg