Vega VEGACAL 62, Operating Instructions Manual

Page: 30 / 60

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 "
.
L inearisation curve
linear
E nter the requested parameter via the appropriate keys , save your
settings and jump to the next menu item with the [-
>
] key .
C aution :
N
ote the following
,
if
VEGACAL
62
is used as part of an over fi ll
protection system according to WHG :
I f a linearisation curve is selected , the measuring signal is no longer
compulsorily linear proportional to the level . T his must be taken into
consideration by the user , particularly when adjusting the switching
point on the level switch .
I n this menu item you can enter an unambiguous designation for the
sensor , e . g . the measurement loop name or the tank or product
designation . I n digital systems and in the documentation of larger
plants , a singular designation should be entered for exact identi fi cation
of individual measuring sites .
S ensor - TAG
S ensor
W
ith this menu item
,
the
B
asic adjustment is fi nished and you can now
jump to the main menu with the [ ESC ] key .
A dditional adjustment and diagnosis options such as e . g . scaling ,
simulation or trend curve presentation are shown in the following menu
schematic
. Y ou will fi nd a detailed description of these menu items in
the operating instructions manual "
I
ndicating and adjustment module "
.
B asic adjustment
I
f the function "
R
eset " is carried out
,
the sensor resets all settings to
default
.
T he following values will be reset :
L inearisation curve
S ensor - TAG
O ptional settings
R eset
30
VEGACAL
62
• P ro fi bus PA
6
S et up with the indicating and adjustment module PLICSCOM
30025
-
EN
-
090603