Mechanical installation
CLP
A03616_04_YI0_02
HBM: public
17
WARNING
If you want to introduce tensile forces, comply with the maximum load-carrying
capacity of the pre-stress elements. There is a danger of breakage if the ac
ceptable loading is exceeded. This can cause danger for the operating person
nel of the system in which the transducer is installed.
When tensile forces are exerted, the tensile force is acting on the pre-stress
elements in addition to the pre-stress force, so these elements must be de
signed accordingly.
Force
washer
Bolts
(regular thread)
Recommended
pre-stress force
in kN
Tightening
torque
in Nm
Minimum
thread reach
in mm
1-CLP/3kN
M2.5
0.6
0.3
3
1-CLP/7kN
M4
1.4
1.1
5
1-CLP/14kN
M6
2.8
3.2
5
1-CLP/26kN
M8
5.2
7.8
10
1-CLP/36kN
M10
7.2
13.5
12
1-CLP/62kN
M12
12.4
27.9
15
1-CLP/80kN
M14
16
41.9
20
The sensitivity of the measurement chain is reduced by these installation re
quirements. Calibration (adjustment) in the mounting conditions is therefore
necessary in all cases. Both precise reference force transducers (e.g. C18 se
ries) and the calibrated piezoelectric sensors in the CFT series are available for
this purpose. You can also request calibration from HBM; the HBM calibration
laboratory would be happy to provide you with a proposal for calibrating your
pre-stressed sensors. This is always possible if your design can be installed in
our calibration system.
