Mounting With Knuckle Eyes - HBM U10M Montageanleitung

Mechanical installation
delivered with 200% calibration, the maximum operating force is 250 kN.
The pre-stressing force to be applied here is then 300 kN.
S Tighten both locknuts (adapter and force transducer) by hand.
S Relieve the load on the force transducer.
3. Operating the U10M without central thread pre-stressing
S You can also operate the force transducer without pre-stressing. Please
screw the connecting part into the U10M as far as the retainer and again
unscrew the component two revolutions. Note that the linearity deviation is
increased if the connecting part screwed into the sensor is not pre-stressed.
If in doubt, we recommend ordering the U10M with the "with force applica­
tion" option. The U10M will then achieve minimum linearity deviation.
S The mounting on the adapter side (bottom of the U10M) has no effect on
measurement accuracy.
S The thread of the U10 or the connected construction elements on the
customer side can be damaged if alternating forces (switching between
tensile and compressive forces) are applied to the force transducer without
pre-stressing. If used without pre-stressing, we therefore recommend only
applying pure tensile or pure compressive loading. Pulsating or static forces
will not cause any damage.
7.4

Mounting with knuckle eyes

Knuckle eyes are used in this mounting variant. These mounting aids prevent
the application to the transducer of torsional moments and, where two knuckle
eyes are used, bending moments, as well as lateral and oblique loads.
Pre-stressing the knuckle eyes is not possible. Knuckle eyes do not have high
endurance when the full oscillation bandwidth is used. They are therefore in­
tended only for static tensile loading of transducers with limited specifications.
The alternating load frequency should not exceed 5 Hz when using knuckle
eyes.
Please follow the instructions and restrictions in section
"Operating the U10M without central thread pre-stressing" page 22..
22
A01385_06_YIC_06 HBM: public
U10M/U10S