6 Installation
FLUXUS G809
6.2 Transducers
31
UMFLUXUS_G809V2-2EN, 2020-06-25
If the measuring point is situated near an elbow, the following measurement arrangements are recommended for the
selection of the sound beam plane.
Vertical pipes
Horizontal pipes
• The sound beam plan is selected in an
angle of 90° to the elbow plane. The el
-
bow is upstream of the measuring point.
• The sound beam plane is selected in an
angle of 90° ± 45° to the elbow plane.
The elbow is upstream of the measuring
point.
Bidirectional measurements
Measurements in reflection
arrangement with 2 beams and 2
planes
• The sound beam plane is selected ac
-
cording to the nearest elbow (horizontal
or vertical, depending on the pipe orien
-
tation, see above).
• The 2 sound beam planes are selected
in an angle of 45° to the elbow plane.
The elbow is upstream of the measuring
point.
• On horizontal pipes, the transducers are
mounted on the upper half of the pipe.
elbow plane
flow
direction
flow direction
elbow plane
flow direction
flow direction
