FLUXUS WD100, WD200 5 Selection of the Measuring Point
22 UMFLUXUS_F5WDV1-1EN, 2016-04-08
5.4 Selection of the Sound Beam Plane Near an Elbow
On vertical pipes On horizontal pipes
• The sound beam plane (see section 3.3.1) has an angle
of 90° to the elbow plane. The elbow is upstream of the
measuring point.
• The sound beam plane (see section 3.3.1) has an angle
of 90° ± 45° to the elbow plane. The elbow is upstream of
the measuring point.
With measurements in both directions
• The sound beam plane (see section 3.3.1) is selected ac-
cording to the nearest elbow (horizontal or vertical, de-
pending on the pipe orientation - see above).
elbow plane
flow direction
elbow plane
flow direction