2.3
Measuring system for level measurement
Note!
General recommendations for laying pressure piping may be taken from
DIN 19210 "Methods for measurement of fluid flow; differential pressure piping for flow
measurement devices" or the appropriate national or international standards.
Open tank
PMD 25 K
•
Mount the Deltabar S below the lower
tapping, so that the pressure piping is
always filled with liquid.
•
The negative side is open to
atmosphere pressure.
•
A trap prevents the build up of dirt in
the pressure piping.
•
Install the pressure piping with a
continuous fall of at least 10%.
Closed tank
PMD 25 K
•
Mount the Deltabar S below the lower
tapping so that the pressure piping is
always filled with liquid.
•
The negative side must be above the
maximum level to be measured.
•
Traps prevent the build up of dirt in the
pressure piping.
•
Use a three-way manifold for simple
mounting without interrupting the
process.
•
Install the pressure piping with a
continuous fall of at least 10%.
Closed tank with
steaming liquid
PMD 25 K
•
Mount the Deltabar S below the lower
tapping, so that the pressure piping is
always filled with liquid.
•
The tapping for the negative side must
be above the maximum level to be
measured. The condensate trap
ensures a constant pressure.
•
Traps prevent the build up of dirt in the
pressure piping.
•
Use a three-way manifold for simple
mounting without interruption of the
process.
•
Install the pressure piping with a
continuous fall of at least 10%.
+
0 - 25 mbar
p
atm
negative side p
atm
BA174Y35
trap and
vent valve
min.
Note!
+
0 - 25 mbar
max.
BA174Y38
trap and
drain cock
min.
trap and
drain cock
3-way
manifold
shut-off
valve
+
0 - 25 mbar
max.
BA17
4
Y40
trap and
drain cock
min.
condensate trap
3-way
manifold
trap and
drain cock
horizontal run
shut-off
valve
2 Installation
Deltabar S
10
Hauser
