Related products

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  Process Control Eengineering

  Training System Temperature Control

  This compact teaching / training unit offers every opportunity to learn the fundamentals of process control through experimentation on a temperature control system. The experimentation set-up is mounted on a solid housing which accommodates all the electronics. A metal bar, which is thermally insulated with cladding, is heated or cooled at one end by a Peltier element. Three temperature transducers along the axis of the bar allow the variation in temperature along the length of the bar, and hence the associated thermal lags, to be obtained for differing operating conditions. A dial-gauge thermometer offers the advantage that the temperature can be read off directly at any time. The temperature is measured using a thermal resistor (PTC). The transducer output signal is sent to the software controller. The output signal from the controller influences the operating voltage of the Peltier element and hence the heating power. A fan that dissipates part of the heating energy can be activated by the software to investigate the influence of disturbance variables. 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 practice 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.

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  Process Control Eengineering

  Level Control Demonstration Unit

  This training system provides a comprehensive experimental introduction to the fundamentals of process control using an example of level control. All components are clearly laid out on a vertical panel. The large-format process diagram provides an aid to understanding. A pump transfers water from a storage tank into the transparent process tank. The level is measured by an electronic pressure transducer installed at the base of the process tank. The controller used is a state-of-the-art digital industrial controller. The actuator in the control loop is an electromagnetic proportional valve. A ball valve in the outlet enables defined disturbance variables to be generated. The controlled variable X and the manipulating variable Y can be tapped as analogue signals at lab jacks. This enables external recording equipment, such as a plotter or an oscilloscope, to be connected. An instrumentation and control software with interface module (USB) is available as an accessory. This enables the key process variables to be represented, and control functions executed. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

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  Process Control Eengineering

  Multi-Process Control Trainer

  This control trainer is a comprehensive unit featuring only industrial components. It contains a transparent tank for liquid-level and pressure control, a corresponding pipe for flow control, and a two-circuit system with a plate heat exchanger for temperature control. Alternatively, a pneumatically operated control valve or a speed-controlled pump are used as actuator. The parameters of the digital controller can be adjusted over wide ranges so that a large number of different process conditions can be investigated. Electronic sensors measure the individual process values. A three-channel recorder with current inputs is included for recording the control behavior over time. Software for the process visualization and Profibus card are available as an accessory.

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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.