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Nominal (rated) force
50 kN
125 kN
250 kN
500 kN
1.25 MN
Tab. 7.2
Tensile forces to be applied for pre-stressing when used with nominal (rated)
force
The pre-stressing forces increase correspondingly when transducers with the option
"200% calibration" are used. If, for example, a U10M/125KN is 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 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 com
ponent 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 application" option. The U10M will then achieve mini
mum linearity deviation.
S
The mounting on the adapter side (bottom of the U10M) has no effect on measure
ment 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 applica
tion to the transducer of torsional moments and, where two knuckle eyes are used, bend
ing 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 intended only for static
tensile loading of transducers with limited specifications. The alternating load frequency
should not exceed 5 Hz when using knuckle eyes.
20
Tensile force to be applied
60 kN
150 kN
300 kN
600 kN
1.5 MN
MECHANICAL INSTALLATION
U10M
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