COMBIMASS® master
THE SYSTEM
The COMBIMASS® master electronic module can be combined with each field transmitter of the COMBIMASS® series for thermal gas flow measurement. This allows to upgrade any basic COMBIMASS® flow meter to a high performance measuring system for demanding and sophisticated applications
The COMBIMASS® master electronic module features two analog outputs, which can be assigned individually. This allows to provide signals indicating the flow rate and the operating temperature of the gas at the same time. Additionally COMBIMASS® master allows to monitor flow rate or temperature limits via three programable relay outputs. The switch points can be set individually in the field to alarm at high, low or windowed flow rates or process temperatures or to control external components, such as shut-off devices, valves, pumps, etc.
One relay input and one analog input for processing of external control signals are available on the COMBIMASS® master module in order to run sophisticated applications. The relay input can be used for remote selection of up to three independent calibration groups. This enables flow rate measurement of different gases or gas mixtures with one flow sensor installed only.
The analog input of the COMBIMASS® master allows external signals to be monitored in order to use this information for processing and correction of the flow signal. This functionality may be applied for flow rate measurement of gas mixtures with varying composition. In such case information on the gas composition will be provided by a gas analyzer in order to compensate deviations of the flow signal and thus allows for accurate flow rate measurement even in such demanding applications
As an option each COMBIMASS® master module can be upgraded with two independent data loggers to a high performance flow analysis computer. This allows non-volatile recording of measured flow rates over free selectable time periods (eg. data logger 1 for a period of 4 years, data logger 2 for a period of 6 weeks). Stored data can be analysed over certain time windows, which may be choosen individually. In this way totalized flow or maximum, minimum and average flow rate for each individual day, week, month or any other time period may be easily determined and indicated on the display. For further data archiving and evaluation all stored data may be transferred to any other computer via an integrated digital port.
Applications
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