E
ach product has di
ff
erent re
fl
ective properties
.
I
n addition
,
there are
various interfering factors which have to be taken into account
:
agitated product surfaces and foam generation
(
with liquids
);
dust
generation
,
material cones and echoes from the vessel wall
(
with
solids
).
T
o adapt the sensor to these di
ff
erent conditions
,
you should
fi
rst select in this menu item under
"
M
edium
"
either
"
L
iquid
"
or
"
S
olid
"
.
A
pplication
L
iquid
S
tandard
(
DK
≥
2
)
D
epending on the dielectric
fi
gure
(
dielectri value or
ε
r
),
measured
products can have a di
ff
erent re
fl
ective property
.
T
herefore an
additional selection possibility is available
.
U
nder
"
S
ensitivity
"
you can select
"
S
tandard
(
DK
≥
2
)
"
or
"
I
ncreased
sensitivity
(
DK
<
2
)
"
.
T
hrough this the sensor is optimally adapted to the product and
measurement reliability
,
particularly in products with bad re
fl
ective
properties
,
is considerably increased
.
E
nter the requested parameters via the appropriate keys
,
save your
settings and jump to the next menu item with the
[-
>
]
key
.
T
o suppress
fl
uctuations in the measured value display
,
e
.
g
.
caused
by an agitated product surface
,
a damping can be set
.
T
his time can
be between
0
and
999
seconds
.
K
eep in mind that the reaction time of
the entire measurement will then be longer and the sensor will react to
measured value changes with a delay
.
I
n general
,
a period of a few
seconds is su
ffi
cient to smooth the measured value display
.
D
amping
0
s
E
nter the requested parameters via the appropriate keys
,
save your
settings and jump to the next menu item with the
[-
>
]
key
.
A
linearization is necessary for all vessels in which the vessel volume
does not increase linearly with the level
-
e
.
g
.
in a horizontal cylindrical
or spherical tank
-
and the indication or output of the volume is
required
.
C
orresponding linearization curves are preprogrammed for
these vessels
.
T
hey represent the correlation between the level
percentage and vessel volume
.
B
y activating the appropriate curve
,
the volume percentage of the vessel is displayed correctly
.
I
f the
volume should not be displayed in percent but e
.
g
.
in l or kg
,
a scaling
can be also set in the menu item
"
D
isplay
"
.
A
pplication
D
amping
L
inearisation curve
28
VEGAFLEX
61
•
P
ro
fi
bus
PA
6
S
et up with the indicating and adjustment module
PLICSCOM
31835
-
EN
-
100426