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7 Set up with the display and adjustment module
VEGABAR 86 • Secondary Device for electronic differential pressure
48048-EN-220817
If the level should be adjusted in a height unit, the density of the me-
dium must also be entered later during the adjustment.
In addition, the unit is determined in the menu item "
Peak indicator
temperature
".
Enter the requested parameters via the appropriate keys, save your
settings with
[OK]
and jump to the next menu item with the
[ESC]
and
the
[->]
key.
Especially with chemical seal systems, the installation position of the
instrument can shift (offset) the measured value. Position correction
compensates this offset. In the process, the actual measured value
is taken over automatically. With relative pressure measuring cells a
manual offset can also be carried out.
There are the following possibilities for a position correction with a
Primary/Secondary combination
•
Automatic correction for both sensors
•
Manual correction for the Primary (differential pressure)
•
Manual correction for the Secondary (static pressure)
With a Primary/Secondary combination in the application "
Density-
compensated level measurement
" there are the following additional
options for the position correction
•
Automatic correction, Primary (level)
•
Manual correction for the Primary (level)
During an automatic position correction, the current measured value
is accepted as the correction value. This value must not be influ-
enced/corrupted by product coverage or static pressure.
In case of a manual position correction, the offset value is determined
by the user. Select for this purpose the function "
Edit
" and enter the
requested value.
Save your settings with
[OK]
and move with
[ESC]
and
[->]
to the
next menu item.
After the position correction is carried out, the actual measured value
is corrected to 0. The corrective value appears with an inverse sign as
offset value in the display.
The position correction can be repeated any number of times.
Position correction
