Pag. 21 of 52
- Transducers positioning
9.4 Pipe surface cleaning
Clean the pipe surface with a manual sander, removing any traces of rust, paint, coating, pipe outer coating or other.
The treated surface area must be extended, according to the transducers model, at least as shown in the following figure:
TS-2
TM-1
TL-1
a
70mm
90mm 140mm
b
40mm
55mm
80mm
9.5
Clamp-on transducers fixing
1) On the transducer lower surface apply a thick layer of grease acoustic coupling
2) Press the transducer on the pipe surface at the transducer installation point, already cleaned.
3) Securely fasten with a metal fixing clamp, or other, the transducer on the pipe
WARNING
- do not overtighten to avoid damage to the transducer
Fig. 39
Fig. 40
Tab. 5
Fig. 41
9.3.1 -
V or W mounting mode
For the transducers correct positioning, proceed as follows:
1) as in step 9.3.1 1)
2) as in step 9.3.1 2)
3) now mark the “
c
” point on the “
S
” straight line, at a distance from “
A
” point equals the “
Lout
” measure previously
calculated and displayed by the conversion unit in
M25
. Now the mounting positions of both transducers are
known:
- point marked with the letter “
a
”
- point marked with the letter “
c
”
