Revision: 3.0.3
3
Measurement Site Selection
When selecting a measurement site, it is impo
to guarantee a highly accurate measurement.
Choose a section of pipe that is always full o
full horizontal pipe.
Ensure enough straight pipe length at least
transducers installation.
Ensure that the pipe surface temperature at the
Consider the inside condition of the pipe care
excessive corrosion or scaling.
10
D
m
in
10D min
10
D
m
in
L
D
5D min
0
.5
D
m
in
P
Straight lengt
pip
N am e
Pum p
Value
Diffuser
Tee
90
o
bend
Reducer
Flow control
Chec
D116 Series Ultrason
Selection
mportant to select an area where the fluid flow profile is
ent. Use the following guidelines to select a proper install
ll of liquid, such as a vertical pipe with flow in the upwa
st equal to the figure shown below for the upstream and
t the measuring point is within the transducer temperatur
arefully. If possible, select a section of pipe where the in
L
≥
10D
L
≥
5D
L
≥
50D
L
≥
10D
L
≥
30D
D
L
≥
5D
L
≥
10D
L
≥
5D
L
≥
50D
P
L
≥
30D
L
≥
10D
gth of Upstream
piping
Straight lengt h of Downstre
piping
Det ector
Flow controlled downstream
trolled up stream
Check Value
eck Value
sonic Flowmeter
Page 14 of 53
is fully developed
tallation site:
ward direction or a
and downstream
ture limits.
he inside is free of
stream
am