34
6 Set up with the display and adjustment module PLICSCOM
VEGAPULS 66 • 4 … 20 mA/HART - two-wire
28438-EN-170927
with
[+]
and save with
[OK]
. The cursor jumps now to the distance
value.
4. Enter the distance value in m for empty vessel (e.g. distance from
the sensor to the vessel bottom) corresponding to the percentage
value.
5. Save the settings with
[OK]
and move to "Max. adjustment" with
[->]
.
Proceed as follows:
Max. adjustment
100.00 %
=
1.000 m(d)
2.000 m(d)
1. Prepare the % value for editing with
[OK]
and set the cursor to the
requested position with
[->]
. Set the requested percentage value
with
[+]
and save with
[OK]
. The cursor jumps now to the distance
value.
2. Enter the appropriate distance value in m (corresponding to the
percentage value) for the full vessel. Keep in mind that the max.
level must lie below the dead band.
3. Save the settings with
[OK]
and move to "Medium selection" with
[->]
.
Each product has different reflective properties. In 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). To adapt the sensor to these different conditions, you should
first select "
Liquid
" or "
Solid
".
Medium
Liquid
Information:
With VEGAPULS 66 with electronics version "
Increased safety
",
"
Solid
" is preset as factory setting. However, the instrument should be
used preferably in liquids. In such cases, the medium selection should
be set to "
Liquid
" during setup.
According to the conductivity and the dielectric constant of liquids,
the reflection properties can differ considerably. Therefore additional
options such as "
Solvent
", "
Chem. mixture
" and "
Water based
" are
offered below the menu item Liquid.
With solids, you can also choose between "
Powder/Dust
", "
Granular/
Pellets
" or "
Ballast/Pebbels
".
Through this additional selection, the sensor is adapted perfectly to
the product and measurement reliability, particularly in products with
poor reflective properties, is considerably increased.
Basic adjustment - Max.
adjustment
Basic adjustment - Me-
dium selection
