Vega VEGAPULS 63 Operating Instructions Manual page 35

Medium selection
Vessel form
VEGAPULS 63 - 4 ... 20 mA/HART
Set up with the indicating and adjustment module PLICSCOM
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 63 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 value 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, partic-
ularly in products with bad reflective properties, is considerably
increased.
Enter the requested parameter via the appropriate keys, save
your settings and jump to the next menu item with the [->] key.
Apart 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".
Vessel form
Storage tank
Information:
With VEGAPULS 63 with electronics version "Increased
35