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9
Stand Pipe Installations
When mounting the SLM600 to a standpipe care should be taken to ensure that the standpipe is of
sufficient dia with reference to its length, see the table below for details:
D(mm)
Length(mm)
80 224
100 280
150 420
200 560
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 into 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
.
L(mm)
D(mm)
Incorrect
Standpipe size
Pipe should be free
of obstructions such
as weld seams
The maximum level
(100% of Span) is inside
the Blanking Distance
