Related products

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  Process Control Eengineering

  Training System Flow Control

  This compact teaching / training unit offers every opportunity to learn the fundamentals of process control through experimentation on a flow control system. The experimentation set-up is mounted in a solid housing which accommodates all the electronics. A piping system with two flowmeters is supplied with flow by a speed-controlled pump from the transparent storage tank. The variable-area flowmeter offers the advantage that the flow can be observed directly at any time. The rate of flow is measured by a turbine wheel flow transducer. The transducer output signal is sent to the software controller. The output signal from the controller influences the setting of an electromagnetic proportional valve. To investigate the influence of disturbance variables, the pump speed can be altered by way of the software. The powerful state-of-the-art software is an integral part of the training system, embodying the principle of hardware/software integration (HSI). It enables the experiments to be conducted and evaluated in a user-friendly manner. The software has network capability. The link between the unit and the PC is made via a USB port. The clearly structured instructional material sets out the technological fundamentals and provides a step-by-step guide through the experiments.

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  Process Control Eengineering

  Stirred Tank Test Stand

  This demanding test stand is used to perform experiments on a multivariable system often found in practice. In this particular example, the interacting variables temperature and level are to be controlled in a stirred tank. After the heated product leaves the stirred tank, heat is transferred to the feed by a heat exchanger. A pneumatic control valve controls the tank level via product discharge. The double-walled tank is electrically heated. The system has a closed water circuit. The test stand contains high quality instrumentation. The controllers have a Profibus DP interface which allows the test stand to be monitored with optional process control software . This software can also be used to record the process variables and to tune controller parameters via PC.

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  Process Control Eengineering

  Trainer for Controller Tuning

  This benchtop trainer deals with the interaction between controller and controlled system, the objective being for the closed control loop, comprising the controller and the controlled system, to exhibit the desired optimum response. The setting of controller parameters – a key practical aspect – can be practised safely and intensively using simulation software. Concepts such as open and closed loop control, stability, step response, disturbance and control response are clearly demonstrated. This principle is in widespread application in product development in industry and is known as Hardware in Loop (HIL). All major types of controlled systems can be selected in the program. The system parameters can be set within broad limits so that – unlike actual controlled systems – extreme parameter situations can be investigated. The time response can be recorded and analysed using the software. The controller and the PC are connected by a data acquisition card with AD and DA converters. The process controller that is used can be easily configured from the PC across an interface using the software provided. Clearly structured instructional material outlines the fundamentals and provides a step-by-step guide through the exercises.

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  Process Control Eengineering

  Training System Level Control

  This compact teaching / training unit offers every opportunity to learn the fundamentals of process control through experimentation on a level control system. The experimentation set-up is mounted in a solid housing which also accommodates all the electronics. The transparent process tank is fed from the storage tank with the aid of a speed-controlled pump. The liquid level is measured using a pressure transducer. The transducer output signal is sent to the software controller. The controller’s output signal influences the speed of the pump motor and therefore delivery flow rate. To investigate the influence of disturbance variables, an electromagnetic proportional valve in the tank outlet can be activated by the software. The powerful state-of-the-art software is an integral part of the training system, embodying the principle of hardware/software integration (HSI). It enables the experiments to be conducted and evaluated in a user-friendly manner. The software has network capability. The link between the training system and the PC is made via a USB port. The clearly structured instructional material sets out the technological fundamentals and provides a step-by-step guide through the experiments.