Kistler-Morse KM L-Cell Bolt-On - Manual (Page 28)

Chapter 4. L-Cell Installation on Horizontal Beams
4-3
L-Cell Mounting Methods
The sensors are mounted at the neutral axis on the web of the beam, at a
45-degree angle, halfway between the loading point and the support point.
The following methods provide varied degrees of accuracy.
I. Same Side: One L-Cell to the left and one L-Cell to the right of the load
point equidistant between the load and the support. The L-Cells are
mounted on the same side of the web. The excitation of the L-Cell to the
right of the load point must be reverse wired (See page 4-8). This arrange-
ment provides average accuracy performance.
II. Opposite Side: One L-Cell to the left and one L-Cell to the right of the
load point equidistant between the load and the support. The L-Cells are
mounted on opposite sides of the web. This arrangement provides average
accuracy performance.
III. Back-to Back: Two L-Cells mounted back-to-back on the web. They can
be mounted beck-to-back on either side of the load point, equidistant
between the load and the support. This arrangement provides average
accuracy performance.
Figure 4-3. Placement of Two L-Cells on same side of web
Load Point
Top of L-Cell Point
Toward LoadPoint
A
B Reverse
wired
Figure 4-4. Placement of Two L-Cells on opposites of web
Load Point
Top of L-Cell Point
Toward LoadPoint
A
B Opposite
side of
beam
Column
(or beam)
Supporting
Instrumented
Beam
Load Point from
Vessel or End of
Diagonal Beam
Two L-Cells
back-to-back
Horizontal or
Diagonal Beam
1 / 2 L
L = Distance from Load Point to Column or Beam Support
Minimum of 18” (457mm)
or beam height
Figure 4-5. Placement of Two L-Cells back-to-back