VEGA VEGAPULS 56V - Manual (Page 41)

VEGAPULS 56V 41
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Mounting and installation
Heavy turbulences
Build-up
Inflowing liquid
Wrong Correct
Strong product movements
Heavy turbulences in the vessel, e.g. by
strong stirrers or strong chemical reactions
influence the measurement. A surge or by-
pass pipe (figure) of sufficient size allows,
provided that the product causes no build-
up in the pipe, always a reliable measure-
ment even with strong turbulences in the
vessel.
Products which can cause slight build-up
can be measured by using a measuring pipe
with 100 mm nominal width and more. In a
measuring pipe of this size, slight build-up is
not a problem.
Inflowing material
Do not mount the instruments in or above the
filling stream. Ensure that you detect the
product surface and not the inflowing mate-
rial.
Correct Wrong
Correct Wrong
Build-up
If the radar sensor is mounted too close to
the vessel wall, build-up on the vessel walls
causes false echoes. Position the radar sen-
sor in a sufficient distance to the vessel wall.
Also note chapter "4.1 General installation
instructions“.