Specifications

Chapter 8: Centerlign Weigh Modules
Selecting Material
(12/99) 8-3
Selecting Material
Load cells and other weigh module components can be manufactured of carbon steel or
stainless steel. Weigh modules that will be exposed to wet or corrosive environments are
generally made of stainless steel. When selecting weigh modules, you will need to
consider the environment in which they will be used and the materials that your facility
will handle. Appendix 12 provides a chemical resistance chart to aid in selecting
materials.
Weigh Module
Orientation
Centerlign weigh modules have adjustable bumper bolts built into the underside of the
top mounting plate. By bumping against the load cell, these bolts limit a scale’s
horizontal movement. In a typical application, three or four weigh modules are used to
support the tank or other structure. They should always be positioned so that the major
horizontal shear force causes the top plates to bump on the end of the load cells. In
many four-module systems, two of the modules will have three bolts, with two of the
bolts positioned to bump on the sides of the load cells. When only two weigh modules
are used for bumpering, both should be located on the same side of the scale. The
recommended arrangement of Centerlign weigh modules for a square or rectangular
structure is shown in Figure 8-2.
Direction of major horizontal force
Figure 8-2: Plan View of Square/Rectangular Mounting Arrangements
The recommended arrangement for a mixer or other circular tank with a rotating force is
shown in Figure 8-3.