Not only purest air in the wafer production areas, but also
ultrareines water are needed with the production processes for the
chip production. Therefore Semikron uses internationally electronics
for the sicherstellung of the high degree of purity of the used water
so-called rotameters. Here it concerns the rotameter H 250 ESK z of
the Krohne measuring technique, which the momentary flow value with an
accuracy of 1,6 % of the measuring range final value indicates. The
measured values are transferred into the appropriate control room with
remote possibility of reading. At the same time by an inserted totals
counter the total flow is added. These flow meters do not leave
kontruktionsbedingt totraeume to develop and impair the flow in no
way. Due to mechanical development more und der used 2-Leitertechnik a
static loading is excluded and it requires no additional current
supply.This carries to a high reliability and to safe results with the
longevity of the flow meter H 250 by the fact was also proven that
every four minutes the equipment is taken on the average in enterprise
and no maintenance is necessary.
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