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The TR 0704 system controller is a universal controller for solar energy and heating systems. In addition to a selection of pre-programmed basic systems, freely programmable individual system configurations can also be realised. The standard TR 0704 has three heat volume measurement inputs and an hours-of-operation logger for each of the four controller outputs. A special feature is the ability to not only display the current values of temperature, irradiation and energy volumes, but also to display the accumulated values over several days in the form of a graphical curve via a graphical dot matrix LCD Display. The modular construction of the TR 0704 system controller allows the control system to be expanded with up to four extra TA 0403 I/O modules. Every extra I/O module has its own microprocessor with four temperature recording inputs and three switching outputs, some of which can also be speed controlled. This means that the controller can be expanded at any time to a maximum of 23 inputs and 16 outputs. The basic version of the TR 0704 system controller has seven inputs for temperature, irradiation or flow rate recording and four outputs for controlling circulation pumps or switching valves. Communication with external peripherals is provided by an IS bus, a fault message output and an RS232 interface.
Measurement display on a graphical dot matrix display
Storage of measured values by an integrated data logger
Freely selectable pre-programmed basic systems
Remote data transfer and remote parameter setting
Heat meter and hours-of-operation logger
Can be modularly extended with the TA 0403 using the data bus interface
Electronic speed control
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