Rev. 01/11 - 2.2 - TFXL-X
The first step in the installation process is the selection of an
optimum location for the flow measurement to be made. For this to
be done effectively, a basic knowledge of the piping system and its
plumbing is required.
An optimum location is defined as:
A piping system that is completely full of liquid when
measurements are being taken. The pipe may become
completely empty during a process cycle—which will result in an
error code being displayed on the flow meter while the pipe is
empty. Error codes will clear automatically once the pipe refills
with liquid. It is not recommended to mount the transducers in an
area where the pipe may become partially filled. Partially filled
pipes will cause erroneous and unpredictable operation of the
meter.
A piping system that contains lengths of straight pipe such
as those described in Table 2.1 on page 2.3. The optimum
straight pipe diameter recommendations apply to pipes in both
horizontal and vertical orientation. The straight runs in Table 2.1
apply to liquid velocities that are nominally 7 FPS (2.2 MPS). As
liquid velocity increases above this nominal rate, the requirement
for straight pipe increases proportionally.
Mount the transducers in an area where they will not be
inadvertently bumped or disturbed during normal operation.
Avoid installations on downward flowing pipes unless
adequate downstream head pressure is present to overcome
cavitation in the pipe.
PART 2 - TRANSDUCER INSTALLATION
1. Mounting Location