Page
125
Velocity Area
The calculation of flow using Velocity Area is only possible when the
optional current input is available to provide an input from a velocity
sensing device which provides a signal proportional to flow. (Please consult
Pulsar for availability).
Point of Measurement
The transducer must be above the
maximum head P704
by at least the near
blanking distance P107
.
For all
Velocity/area
applications the point at which the head is measured
should be chosen such that the surface of the liquid is not affected by
turbulence. (See
DRWG 10
,
11, 12
and
13
)
U – Channel
Содержание ULTRA 5
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