VEGA VEGAPULS 56 Profibus PA - Manual (Page 27)

VEGAPULS 56 Profibus PA 27
Openings in a surge pipe for mixing of inhomogene-
ous products
Mounting and installation
slightly inhomogeneous
liquids homogeneous
liquids
Pipe antenna with DN 50, DN 80, DN 100 and DN 150
DN 150
DN 80 DN 50
ш 150
ш 80 ш 50
DN 100
ø 100
Adhesive products
For adhesive products, a surge pipe with a
larger inner diameter should be used. For
nonadhesive products, the best and most
inexpensive solution is a measurement tube
with a diameter of 50 mm. For slightly adhe-
sive products, use a surge pipe with a nomi-
nal diameter of 100 mm to 150 mm to prevent
buildup from causing measurement errors.
The more inhomogeneous the measured
product, the closer together the openings
should be.
strongly inhomogeneous
liquids inhomogeneous
liquids
Standpipe measurement of inhomoge-
neous products
If you want to measure inhomogeneous prod-
ucts or stratified products in a surge pipe, it
must have holes, elongated holes or slots.
These openings ensure that the liquid is mixed
and corresponds to the liquid in the vessel.