6 Installation
6.2 Transducers FLUXUS WD
2018-07-16, UMFLUXUS_WDV1-3EN
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6.2.1.3 Selection of the measurement arrangement
Diagonal arrangement with 1 beam Reflection arrangement with 1 beam
• wider flow velocity and sound speed
range compared to the reflection
arrangement
• use in the presence of deposits on the in-
ner pipe wall or with strongly attenuating
gases or liquids (only 1 sound path)
• smaller flow velocity and sound speed
range compared to the diagonal arrange-
ment
• transverse flow effects are compensated
because the beam crosses the pipe in 2
directions
• higher accuracy of measurement be-
cause the accuracy increases with the
number of sound paths
Diagonal arrangement with 2 beams Reflection arrangement with 2 beams
and 2 planes
• same characteristics as reflection
arrangement with 2 beams
• additional characteristic:
influences of the flow profile are compen-
sated because the measurement takes
place in 2 planes
• same characteristics as diagonal
arrangement with 1 beam
• additional characteristic:
transverse flow effects are compensated
because the measurement is conducted
with 2 beams
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