Pulsar Imp 10, Инструкция по эксплуатации

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Page 8
Stand Pipe Installations
When mounting the
IMP+
IMP+ IMP+
IMP+
to a standpipe care should be taken to ensure that
the standpipe is of sufficient diameter with reference to its length, see the
table below for details:
Dia. (D) Max. Length (L)
mm inches mm inches
80 3 220 8
100 4 300 12
150 6 420 16
200 8 560 22
When using a standpipe, fixed to the top of a vessel, ensure that the open
end of the standpipe is clear of any obstructions such as weld seams, gaskets
etc. in order to avoid unwanted signal returns.
If using standpipes which extend in to the vessel, beyond the blanking
distance, but not as far as the empty level, then the open end of the standpipe
should be cut to an angle of 45
o
.
Correct
standpipe
installation
Pipe should be free
of obstructions
such as weld seams
The maximum
level (100% of
Span) is inside the
Blanking Distance