Used with all liquid and gas process media, provided that these do not corrode stainless steel, do not crystallize and are not highly viscous, moreover, they must not contain magnetic material. Particularly used in filter plants, pipeline systems, monitoring of pumps and cooling circuits. DESCRIPTION
Pressure p1 and p2 are given in the ( ) and (-) measuring medium chambers separated by magnetic piston. The differential pressure causes axial movement of the piston supported by a measuring range spring. A magnetic ring mounted on the instrument pointer follows the movement of the magnetic piston so that each piston position is appropriated to a defined pointer position. This design ensures mechanical separation of the measuring system and the case, and eliminates external leakage. The volume flow from ( ) to (-) media chambers is minimized by the constructive design and will not interfere with the process. For applications for heavily contaminated media, a ?separation diaphragm assembled on ( ) side is suitable and this appliance isolates completely the volume flow from ( ) to (-) media chambers.