VEGA VEGAPULS 62 (≥ 2.0.0 - ≤ 3.8) standpipe ver. 4 … 20 mA_HART two-wire - Manual (Page 30)

M edium
Liquid
Water based
Acids/Bases
E nter the requested parameter via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.
A part from the medium, the vessel shape can also influence the
measurement. To adapt the sensor to these measuring conditions, this
menu item offers different options depending on whether liquid or solid
is selected. With "Liquids" these are "Storage tank", "Stilling tube",
"
Open vessel" or "Stirred vessel", with "Solid", "Silo" or "Bunker".
V essel form
Storage tank
E nter the requested parameter 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. with a cylindrical or
spherical tank - and the indication or output of the volume is required.
C
orresponding linearization curves are preprogrammed for these
vessels. They represent the correlation between the level percentage
and vessel volume. By activating the appropriate curve, the volume
percentage of the vessel is displayed correctly. If 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 "Display".
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.
Caution:
N
ote the following, if VEGAPULS 62 is used as part of an overfill
protection system according to WHG:
I f a linearisation curve is selected, the measuring signal is no longer
compulsorily linear proportional to the level. This must be taken into
consideration by the user, particularly when adjusting the switching
point on the level switch.
Vessel form
Linearisation curve
30 VEGAPULS 62 standpipe version • 4 … 20 mA/HART two-wire
6 S et up with the indicating and adjustment module PLICSCOM
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-EN
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