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PRODUCT
RT 512 Level Control Trainer
Education / GUNT Hamburg / Process Engineering / Simple Process Engineering Control Systems /
description

This trainer provides a comprehensive experimental introduction to the fundamentals of control engineering using an example of level control.

  A pump delivers water from a storage tank to the transparent level-controlled tank. The liquid level is measured by a pressure transducer installed at the base of the level-controlled tank. The controller used is a state-of-the-art digital industrial controller. The actuator in the control loop is a pneumatically operated control valve with an electro-pneumatic positioner. 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.

  A process control software (RT 650.50) is optionally available. The software permits the construction of a complete networked system comprising multiple trainers from the RT 512 - RT 552 series. The key process variables can also be represented, and control functions executed.

 

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

 

Learning Objectives / Experiments

- fundamentals of control engineering
- real industrial control 
engineering components:

  controllers, transducers, actuators
- operation and parameterisation of the local

  industrial controller  
  * manually (by keyboard)
  * using the RT 650.50 process control software 
- investigation of disturbance and control response

- controller optimisation 
- investigation of the properties of the open and

  closed control loops
- processing of process variables using external

  equipment, e.g. oscilloscope or plotter
- together with accessory RT 650.50 and other

  trainers (RT 522 - RT 552): familiarisation with and

  use of process control software (SCADA)

Specification

[1] trainer for control engineering experiments
[2] level control process, equipped with standard industrial components
[3] level measurement by pressure sensor
[4] generation of disturbance variables by ball valve with scale in outlet
[5] transparent level-controlled tank with overflow and graduated scale
[6] pneumatically operated control valve with electro-pneumatic positioner
[7] digital controller, parameterisable as a P, PI or PID controller
[8] 2-channel line recorder
[9] process variables X and Y accessible as analogue signals via lab jacks 
  

Technical Data

Storage tank: 30L
Centrifugal pump
- power consumption: 550W
- max. flow rate: 230L/min
- max. head: 11m
- speed: 2.850min-1
Level-controlled tank 
- max. 7L
- level: 0...0,6m
Pressure sensor: 0...100mbar
Pneumatically operated control valve DN 20 
- Kvs: 4,0m³/h
- reference variable: 4...20mA
- nominal stroke: 15mm
characteristic curve equal-percentage
Line recorder 
- 2x 4...20mA
- feed rate 0...3.600mm/h, stepped
Controller

- process variables X, Y as analogue signals: 4...20mA

 

Dimensions and Weight
LxWxH: 1.000x500x1.750mm
Weight: approx. 124kg
Required for Operation

230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Compressed air: 3...8bar

Scope of Delivery

1 trainer

1 set of cables

1 set of hoses
1 set of instructional material

Order Details
080.51200  RT 512  Level Control Trainer