15
UK
This may result in incorrect measurements with heavy foam formation and
turbulence.
To avoid this
►
install the sensor in a steady area by observing the hygienic
requirements.
Example how to create a steady area:
• Installation in metal bypass or metal still pipe (fig. 6-2)
• Separation of the installation location by metal sheets / perforated
sheets (without figure)
fig. 6-2
d
d
A
B
C
D
Min. diameter of the bypass and still pipe:
Installation
with adjustment
without adjustment
Diameter
≥ DN 30
≥ DN 250
The upper access to the steady area (A, B) has to be above the max. level.
The lower access (C, D) or the area with perforated sheet has to be below
the min. level. This ensures that neither foam nor turbulence impact the
sensor zone. When perforated sheets or the like are used, soiling (e.g. by
solids in the medium) can also be avoided.
