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The Endress+Hauser RMS621 energy manager
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The Endress+Hauser RMS621 energy manager was developed specially for industrial water and steam energy calculation. Using this high end unit from the PreLine family, applications such as steam mass measurement, steam heat calculations and water heat differential can be realised.
This energy calculator distinguishes itself through its high flexibility and state-of-the-art technology. Using plug-in expansion cards, the number of in- and outputs can be selected to give an optimum solution for the application. Up to three such expansion cards can be integrated into each base unit.
Using this expansion possibility and the high calculation speed, it is possible to simultaneously operate three totally independent water/steam applications on one unit. Retro-fitting the expansion cards is simple and can even be done during operation of the energy manager.
Between 4 and 10 analogue, digital and temperature inputs are available. These are totally independently presettable and can also be defined to more than one application in the unit. The measured values, as well as those calculated, can be retransmitted using 2 to 14 analogue or digital outputs or by means of the built-in RS232 interface. Between 1 and 7 relays are also available for alarm set point condition monitoring.
Calculation of the energy values from the flow, pressure and temperature inputs is done using the latest international IAPWS-IF97 standard as a base for the most used calculation formulae for industrial heat calculation.
This DIN top hat rail mounted unit is operated using a rear illuminated dot matrix display and soft keys or by using the built-in serial interface and the freeware operating software, ReadWin® 2000, with which other E+H units can also be set up. As an option, a remote panel-mounted display is also available. This display has the same functionality as the integrated display and soft keys on the unit. The easy set-up is additionally supported by a quick-set up feature, as well as on-line help text. In order to assist in recognising alarm set point conditions, sensor faults or process values, the rear illumination changes colour from blue to red.
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