Importance

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Abstract

A measuring system for measuring at least one measured variable of a flowing fluid, comprises a fluid supply line, a transducer apparatus, which has a tube and at least one other tube and is adapted to deliver at least one measurement signal corresponding to the at least one measured variable, a fluid return line, and a fluid withdrawal line. To open a first flow path, which leads from the lumen of the fluid supply line to the lumen of the tube, further to the lumen of the tube and further to the lumen of the fluid return line, equally as well not to the lumen of the fluid withdrawal line, and thereafter to allow fluid to flow along the flow path for the maintaining the temperature and/or for cleaning of parts of the measuring system and/or for conditioning fluid. It is, additionally, provided (instead of the first flow path) thereafter to open a second flow path, which leads from the lumen of the fluid supply line to the lumen of the first tube and, in parallel, to the lumen of the second tube and further from the lumen of the first tube, and from the lumen of the second tube, in each case, to the lumen of the fluid withdrawal line, as well as to allow fluid to flow along the second flow path. Moreover, it is provided, while allowing fluid to flow along the second flow path, in given cases, also while allowing fluid to flow along the first flow path, to generate at least one measurement signal, as well as to use the measurement signal for ascertaining measured values of the at least one measured variable.

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First Claim