Procedure For Special Mounting Situations - HBM C16i Series Mounting Instructions

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C16i...

8.2 Procedure for special mounting situations

If there are extremely long distances between the supports of the load cells or
if the weighbridges bend easily, the rolling movements of the load cell pro-
duced by a load can cause discrepancies in the results. This rolling motion is
assisted by a lateral drift of the upper load cell load introduction points under
load, if the contact zone between the load introduction part and the load cell is
far below the neutral bending axis of the weighbridge. To minimize the dis-
crepancies which occur in these cases, the load cells can be mounted at a
slight slant, set to a maximum of 1° inwards.
unloaded
neutral bending axis
loaded
neutral bending axis
initial state (unloaded)
Alternatively, thin steel plates (approx. 0.5 mm thick) can be placed under one
side, under the load introduction parts, at the given points.
Steel plates
Structurally, this effect can be counteracted by shifting the bearing points on
the weighbridge as far upward as possible, towards the neutral bending axis.
A1461--1.2 de/en/fr HBM