Page 108
Point of Measurement
The transducer must be above the
maximum head P704
by at least the near
blanking distance P107
.
For
Suppressed/Contracted Rectangular
,
Trapezoidal
and
V-notch
,
weirs, the head is measured
upstream
at a minimum distance of
3 times
maximum head
from the weir plate to ensure the surface of the liquid is not
affected by turbulence or drawdown. (See
DRWG
.
1
)
In the case of a
Venturi
flume the point of measurement should be
150 mm
upstream
from the beginning of the
converging section
and for a
Parshall
flume
2/3 the length of the converging section
upstream of the
throat
section. See
DRWG 2
and
3
)
Содержание ULTRA 5
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Страница 23: ...Page 15 The full dimensions of the Fascia mount enclosure are as shown below ...
Страница 25: ...Page 17 Dimensions of the panel enclosure are as shown below VOLTAGE SELECTOR AC POWER FUSE 230 115 ...
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