fafnir CONDURIX DU, Техническая документация инструкция

Страница: 9 / 24

Installation Page 6/ 20
4.1 CONDURIX Mono (single rod)
With the single - rod probe, the tank acts as the counter electrode. For this reason, the
material on the inside of the tank must be conductive and there must be good electrical
contact between the tank and the sensor head. For this purpose, the potential equaliz
a-
tion terminal must be connected to the tank.
4.2 CONDURIX DU (two rods)
With the two - rod probe, the second rod acts as the counter electrode. As the distance
from reference potential is constant, the measurement result is unaffected by the geom e-
try of the tank. While the second rod also adds to the stability of the mechanical design,
this does require a larger process connection for installation.
4.3 CONDURIX MA (jacketed pipe)
With the jacketed probe version, a pipe (coaxial in construction) surrounding the probe
tube acts as the counter electrode. As the distance from reference potential is constant,
the measurement result is unaffected by the geometry of the tank.
The jacketed pipe also provides a shield against electrical interference and facilitates
measurements in otherwise unfavourable measuring conditions.