Kobold NRM, Operating Manual

Page: 7 / 52

NRM
NRM K06/0422 page 7
SENSOR ALIGNMENT
The antenna face should be parallel to
the medium surface within

2-3°.
TEMPERATURE
To avoid
overheating the
instrument should
be
protected
against direct
sunshine.
Árnyékoló tet ő
OBSTACLES
Prior to the installation make sure that
no objects (cooling pipes, bracing
elements, thermometers, etc.) cross the
microwave signals. Especially in case
of extraordinary large silos bracing
elements and other structural obstacles
may cause false reflections which can
be damped in most cases: a small bent
metal deflector plate mounted above
the
obstacle can disperse the
microwave signals and eliminates the
false reflections which disturb the
reliable measurement.
If there is no possible mechanical
solution to avoid these kinds of false
reflections, the programming of the
instrument allows blocking out the
obstacles. (see: 8.3.4.5)
POLARIZATION
PLANE
The emitted radar impulses
of NRM are electromagnetic
waves. The orientation of
the polarization plane is the
same as for the electric
wave component of the
electro-magnetic wave. The
rotation of the polarization
plane compared to the tank
position could be useful (for
example to avoid disturbing
reflections)
in certain
applications. To rotate the
polarization plane loosen
the M6 hex socket set screw
above
the process
connection and rotate the
instrument. Then tighten the
unit by the screw.
M6/Sw.
3