Revision: 3.0.3
7.2
Frequently Asked Questions
Question: New pipe, high quality material, and a
Answer: Check pipe parameter settings, in
compound is applied adequately,
readings and the transducers are in
Question: Old pipe with heavy scale inside, no
Answer: Check if the pipe is full of fluid.
Try the Z method for transducer
install the transducers on a vertica
Carefully select a good pipe secti
each transducer face (bottom) and
Slowly and slightly move each tr
the maximum signal is detected.
pipe and that the pipe is concentri
proposed area.
For pipe with thick scale inside o
(Note: Sometimes this method mi
the a layer of scale between the tr
Question: Why is the flow rate still displayed
of "R" displayed on the screen?
Answer: Check to see if "Set Zero" was ca
it is confirmed, recover the factor
D116 Series Ultrason
stions and Answers
l, and all installation requirements met: why still no signa
, installation method and wiring connections. Confirm
ly, the pipe is full of liquid, transducer spacing agrees
e installed in the right direction.
de, no signal or poor signal detected: how can it be resolv
ducer installation (If the pipe is too close to a wall, or it
rtical or inclined pipe with flow upwards instead of on a ho
ection and fully clean it, apply a wide band of coupling
and install the transducer properly.
transducer with respect to each other around the install
ed. Be careful that the new installation location is free of
entric (not distorted) so that the sound waves do not boun
de or outside, try to clean the scale off, if it is accessible
might not work and sound wave transmission is not poss
he transducers and pipe inside wall).
ayed as zero while there is fluid obviously inside the pipe
carried out with fluid flowing inside the pipe(Refer to W
tory default in Window M43.
sonic Flowmeter
Page 38 of 53
ignal detected?
rm if the coupling
es with the screen
olved?
r it is necessary to
a horizontal pipe).
ling compound on
tallation point until
of scale inside the
unce outside of the
le from the inside.
possible because of
pipe and a symbol
o Window M42). If