Related products

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  Process Control Eengineering

  Trainer For Field Bus Applications

  Field bus technology plays a key role in modern-day process automation. The field bus permits networking of terminal devices such as controllers, sensors or actuators in the plant system (field level) with the higher-level control room (control level). A network of this kind can be quite extensive; line lengths of as much as 1000 metres and more are possible.This benchtop trainer is used to teach the initial basic steps in field bus technology based on the example of Profibus DP. Various terminal devices (slaves) are activated and read by a PC with a Profibus DP interface (master). The required hardware is largely pre-configured. Students are able to concentrate on the software programming of the field bus system. The following specific topics can be covered: System configurator with DMF (Device Master File), bus topology, communication protocols, tags, OPC (OLE forProcess Control) server, input and output of process data, and much more. The unit includes a digital process controller as well as analogue and digital input and output modules with a Profibus DP interface. Two potentiometers permit the simulation of input signals for the controllers. A digital voltmeter displays the output signals. Digital signals are generated by switches and displayed by LEDs. The controlled variable, manipulating variable and reference variable data are delivered as standard signals at lab jacks, enabling the controllers to be incorporated into real processes at any time. Clearly structured instructional material outlines the fundamentals and provides a step-by-step guide through the exercises.

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  Process Control Eengineering

  Nutsche Vacuum Filter

  Nutsche Filters are used for discontinuous cake filtration of suspensions with high solid concentrations. The suspension production unit produces a suspension of diatomite and water and delivers it from above into the Nutsche Filter. A filter bag is inserted in the Nutsche Filter. A growing filter cake accumulates in the filter bag made from the separated solid material. The vacuum in the bottom section of the Nutsche Filter draws filtrate through the filter cake and the filter bag. It is collected in the bottom section. After filtering, the filter cake obtained is washed with a washing liquid (water) and is dried by the applied vacuum before being removed.

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  Process Control Eengineering

  PH – Value 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

  Process Control Rig

  The unit is used as an introduction to the subject of control technology. Temperature, flow rate and filling level control systems are used as examples to provide clear and practical fundamental information. The experimental system is controlled from the PC screen (not included in scope of supply). The supplied process control and illustration programs make it possible to carry out the experiment as well as record measurement reports and store measured data. Important process variables are shown digitally on the unit itself. All components of the unit are clearly mounted on a metal sheet. The storage and process tanks are transparent for better viewing of the process. The unit is designed as a experimental unit for tabletop use. It requires only an electrical power connection for operation.