NT 208D GB1
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D. s1 ou s2
L
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1 -
TYPICAL APPLICATIONS
Compared to a single-chord version, the management of 2 chords placed correctly on
the same pipe provides better monitoring for the hydraulic conditions specific to the site
and are the key to better accuracy.
There are two main possible acquisition configurations:
Two parallel and symmetrical chords with intrusive or wetted probes (SM)
aligned in pairs:
Either with tapping at an oblique angle and straight-ended probes
Or with taps perpendicular to the pipe, but with bevel-end probes.
Good geometrical control is essential. The construction of a measuring spool may be
recommended.
Main advantages of this configuration:
good control of turbulent / laminar flow configuration transitions,
improved measurement precision over a larger flow range,
when a spool is used , there is the possibility of calibration on a flow rig.
Two cross-path diametrical planes with clamp on external probes (SE).
The installation will be in Direct or Reflex mode depending on the options and
conditions on site.
