Page 50 MiniRanger Plus 7ML19981CJ01
Applications
Applications with Standpipe
In many liquid applications, access to the vessel must be made via a
standpipe. In such cases, Milltronics can provide optional flanged
transducers, or split flanges that mate to a flanged standpipe. Another option
is to hang the transducer from a blind flange.
The standpipe length should be as short and the diameter as large as
possible. As a rule of thumb, the – 3 dB cone of the sound beam should not
intersect the standpipe wall in applications opening into a vessel. Otherwise,
additional near blanking (P800) is required to compensate for the
interference zone created by the opening.
vessel
no additional
blanking required
no
intersection
transducer radiating face
vessel
near blanking extension of
150mm (6”) past end of
standpipe may be required
transducer
sound beam
intersects
pipewall
reflection at
interference zone
created by opening
no additional
blanking required
no vessel
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