NT214B GB1
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L , D
D
L
D.S
6- PROBES INSTALLATION
– General Procedures.
The MiniSonic P & P-B accept all standard or special transducers of Ultraflux
catalogue with frequency from 250 KHz up to 2 MHz : clamp-on , insertion or wetted …
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Unless specified and instructed otherwise in the order, refer to the probe data sheet
of the model used .
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The installation of the probes in a conduit should allow for the best the straight lengths,
particularly upstream, but also downstream, in order to benefit from a predictable and
stabilized hydraulic profile. Provide upstream a minimum of 15 times the pipe
diameter.
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Similarly, to avoid the nuisance of deposits or accumulation of gas, planes close to
vertical (+/- 30°) will be avoided. A horizontal plane is a good choice excepted when
the conduit is vertical.
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For intrusive probes
, adjust the insertion then the alignment or orientation of the
probes for the same pair (> parallel faces).
Important! : once these adjustments finished , it is necessary to measure with
accuracy the distance L between transducers face to face and its projection D on flow
axis and note these values on a “as built ” data sheet for further entering in instrument
menu .
! The final accuracy depends on.
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For external probes, the freedom offered should not prompt the user to ignore
the above rules.
However, the choice of direct (\), reflex (V) or even (N or W) installation mode will
depend on the decision regarding the conduit (state) and the fluids to be measured.
Therefore, we advise initially a provisional installation known as a validation
installation (coupled with gel or grease) and final assembly (supports, solid coupling)
once the conditions have been validated.
Since the MiniSonic calculates for you the distance D.S required between the probes,
the setting up operations will, in theory, take place once the converter parameters
have been set.
Particular attention will be paid to cleaning the conduit at the probe location.
