General Principles for Electromagnetic Flowmeter Selection H1 Introduction
1) Whether the measured medium is a conductive liquid or slurry, thereby determining whether an electromagnetic flow
meter is selected;
(2) The
conductivity of the measured medium determines the type of electromagnetic flow
meter - whether it is high
conductivity or low
conductivity;
(3) The nominal dia
meter of the maximum, minimum and common flow process pipelines required by the process, determine whether the flow rate of the medium is at a more economical flow point, whether the pipeline needs to be reduced, and finally determine the dia
meter of the flow
meter; 1(4) Determine the use of integrated or split flow
meters, as well as the degree of protection of the flow
meter, etc., based on the layout of the process piping;
(5) Selecting the electrode type according to whether the measured medium is easy to crystallize or crusting;
(6) selecting an electrode material according to the corrosiveness of the measured medium;
(7) Corrosion of the measured medium. Abrasion and temperature to determine which lining material to use;
(8) The highest working pressure of the measured medium determines the nominal pressure of the flow
meter;
(9) The insulation of the process piping determines the type of grounding ring.