11 Instruction Manual
Principles to selection of an optimum location
(1) Install the transducers on a longer length of the straight pipe. The longer the better,
and make sure that the pipe is completely full of liquid.
(2) Make sure that the temperature on the location does not exceed the range for the
transducers. Generally speaking, the closer to the room temperature, the better.
(3) Take the pipe fouling into consideration. Select a straight length of a relatively newer
pipe. If the condition is not satisfying, consider the fouling thickness as part of the liner
for a better result.
(4) Some pipes have a kind of plastic liner, and between the outer pipe and the liner there
may be a certain thickness difference that will prevent the ultrasonic waves from direct
traveling. Such conditions will make the measurement very difficult. Whenever possible,
try to avoid this kind of pipes. If impossible, try our plug-in transducers that are installed
permanently on the pipe by drilling holes on the pipe while liquid is running inside.
L u p
L d n
L u p
L d n
L u p
L u p
L u p
L d n
L d n
L d n
Pi p i n g Co n f i g u r a t i o n
a n d
T r a n s d u c e r Po s i t i o n
Up s t r e a m
Di me n s i o n
Do wn s t r e a m
Di me n s i o n
L d n
x D i a m e t e r s
L u p
x D i a m e t e r s
1 0 D
5 D
1 0 D
1 0 D
1 2 D
2 0 D
2 0 D
5 D
5 D
5 D
5 D
5 D
L u p
L d n
3 0 D
5 D
L u p
L d n
