Tecfluid CU Series - Manual (Page 21)

21
For pipe diameters bigger than 350 mm, Z mode is recommended, which consists of
placing the transducers on opposite sides of the pipe. The signal is propagated directly
from one transducer to the other.
For pipe diameters up to 350 mm, V mode is recommended. This mode ensures that the
propagation path of the ultrasonic wave is long enough so that the instrument can
successfully perform the measurement. V mode consists of placing the transducers
aligned on the pipe. The propagated signal is reflected in the central point on the opposite
side of the pipe.
5
Depending on the pipe material and the process fluid, the selection of transducer
placement mode (V or Z) according to pipe size may be different than above indicated.
5.10 Paths
The number of paths is given by the transducer installation method.
TRANSDUCERS INSTALLATION
V mode
Z mode