Related products

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  Process Control Eengineering

  Temperature Control Trainer

  This teaching and training system provides a comprehensive experimental introduction to the fundamentals of process control using an example of temperature control.A circulating pump transfers water within a closed circuit. The flow of water can be regulated by a hand-operated valve. 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. A process control software is optionally available. The software permits the construction of a complete networked system comprising multiple trainers from the series. The key process variables can also be represented, and control functions executed.

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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

  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

  Process Control Training Plant

  This training system for process control represents a fully functional process control system. It consists of four individual systems: process module, control console, fault simulator and service module. The actual process module contains the devices and loops for liquid-level, flow rate, temperature and pressure control with all necessary equipment, tanks and vessels, pipes and delay coils, various sensors and pneumatically actuated valves. The system is laid out in a way to represent a realistic part of a plant also found in heavy industry. The control console is equipped with four digital universal industrial controllers and four three-channel chart recorders. The controllers can configured independently as required and can be operated both individually and simultaneously. They all have serial interfaces permitting parameters to be set from a PC and facilitating interfacing with a process control system. The separate console for the fault simulation unit is used to study ten different typical system faults, e.g. sensor failure or cable break. These are activated using switches. Their effect on the system behavior of the system can then be investigated. The service module provides compressed air, hot and cold water for the process module. A process communication system facilitates the central control and monitoring of the system.