Pag. 13 of 52
- Installation
In the case of a horizontal pipe, the transducers positioning should be between ± 45 ° relative to the horizontal center
line of the pipe. This is to avoid that any air bubbles can interfere with the flow velocity detection, Furthermore, in the
case of buried pipe must observe the following measures:
with insertion type transducers L>600mm; with clamp-on type transducers L>400mm
Transducers positioning on a horizontal tube
The transducers positioning points to be avoided are:
- vertical pipes with the downward flow, because they may not be completely filled with fluid (fig.16)
- inclined pipes with the downward flow, because they may not be completely filled with fluid (fig.16)
- the transducers must never be placed in the highest point of the concerned hydraulic circuit, because there is greater
chance that in that pipeline section will create air pockets (fig.17)
- vertical open drain pipes without a section restriction to avoid sudden pipe emptying during flow measurement
(fig.17)
Positioning to avoid example
Positioning to avoid example
7.2 Positioning distance
The value (calculated automatically by the system) shown in menu
M25
refers to the “
Lout
” mounting distance between
the two transducers, as shown in the following figures
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
