Panametrics Sentinel LCT, User Manual

Page: 29 / 248

Sentinel LNG User’s Manual 17
Chapter 2. Installation
2.3.2 Installation Precautions
Any questions with respect to the installation should be addressed prior to beginning the installation. Failure to install
the
Sentinel LNG
correctly can increase measurement uncertainty.
CAUTION!
To avoid possible strain, refer to the Sentinel LNG label for the assembly weight, use a properly-rated
lifting assembly, and place the lifting straps in the indicated locations (see Figure 7 below).
All the mechanical and electronic components are shipped fully assembled (see Figure 4 on page 13), however the
following precautions should be observed:
•
Make sure the difference between the inside diameter of the pipe and that of the
Sentinel LNG
spoolpiece does not
exceed 1%. (Changes in internal diameters will cause flow profile disturbances.)
• Make sure any non-symmetrical offset does not exceed 1%. (Misalignment between the piping and the
spoolpiece may cause flow profile disturbances.)
• Make sure the gasket is centered on the flange faces and does not protrude into the pipe. (Protrusion of the
gasket into the pipe may cause flow profile disturbances.)
• Make sure the
Sentinel LNG
is oriented with the flow transmitter in a vertical position at the top (see Figure 7
below).
Figure 7: Lifting Strap Locations
2.3.3 Installing the System
Being mindful of Installation Precautions listed on page 17, complete the following steps:
1. Make sure the gaskets are in place on the flanges.
2. Support the Sentinel LNG between the flanges on the pipe.
3. Align the flange mounting holes (see Figure 8 below).