Mechanical installation
16
A03616_04_YI0_02
HBM: public
CLP
ground Ra0.5
Customer side
component
Customer-side component
Force to be measured
Force to be measured
Fig. 6.3
Force washer pre-stressed by the bolt
The minimum pre-stress force must be 10% of the nominal (rated) force. The
force washer itself can be used to determine the pre-stress force. The test re
port accompanying the transducer contains the sensitivity that you need to set
on the charge amplifier in this mounting step.
You can also use torque to adjust the pre-stress. Please use the recommended
torque from the table below, which also outlines other details about the bolts to
be used.
Once mounted, the force washer works in a force shunt, as the component
generating the pre-stress is mounted parallel to the force washer (springs con
nected in parallel).
Notice
Pre-stress forces must act precisely in the measuring grid direction, neither
bending moment nor lateral force may occur. Otherwise the transducer can be
destroyed.
