Rice Lake Weigh Modules/Mount Assemblies - Manual (Page 39)

WEIGH MODULES
2-10
Double-Ended Beams
Double-End Beam Orientation
In Figure 2-19, we illustrate some recommended mounting meth-
ods for double-ended shear beams used in the RL1600 and EZ
Mount 1.
The mounts for these cells allow the least restricted vessel move-
ment in a direction perpendicular to the longitudinal axis through
the cell.
The best mounting position for several vessel shapes is shown at
right, where a line from the center of the vessel is at right angles
to the longitudinal axis through the load cell. These recommen-
dations are particularly important when significant thermal ex-
pansion/contraction is expected.
The TSA module should be oriented with the load cell’s longitudi-
nal axis in line with the expected movement. On a truck scale, that
will normally be in the direction of truck travel. See Figure 2-25.
General Mounting Principles
• The load cell should be horizontal in both directions.
• The load should be applied vertically through the cell’s center.
• The load should be introduced without producing a twisting
effect around the center.
• The load must not move along the cell.
Figure 2-18
Double-End Beam Load Cell Modules
Introduction
Double-end shear beams are medium- and high-capacity workhorses that are rugged, stable, and able to handle side loads well. The
modules come in two varieties—end-supported cells loaded in the center, and center-supported cells loaded at the ends. The end-loaded
cell is used in the Translink hanging-link truck scale module described later in this section. The more common center-loaded version
described below is used in the RL1600, EZ Mount 1, and TSA mounting systems.
Figure 2-18 shows some important guidelines for applying load to a center-loaded, double-ended shear beam and for orienting a module
using this type of load cell.
Figure 2-19