Pulsar IMP Lite 10, Instruction Manual

Page: 13 / 38

Page8
Standpipe Installations
When mounting the
IMP Lite
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 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
.
Important Information
If the equipment is installed or used in a manner not specified in this
manual, then the protection provided by the equipment may be impaired.
The maximum level
(100% of Span), is
inside the blanking
distance
Pipe should be free
of obstructions such
as weld seams
Correct standpipe
installation