Installation With Direct Connection; Installation With Knuckle Eyes - HBM S2 Notice De Montage

S2

5.3 Installation with direct connection

In this mounting variant, the transducer is mounted with tension/compression
bars on a construction element and can then be measured in the tensile and
compressive directions. Alternating loads are also correctly recorded if the
transducer is mounted without axial play. For dynamic alternating loads, the
upper and lower threaded connectors must be pre‐stressed to above the max­
imum working force and then locked in place.
Installation and locking with initial stress (recommended mounting vari­
ant)
1. Screw in the threaded connector.
2. Load the transducer with 110% of the force that will occur during subse­
quent operation in the tensile direction.
3. Tighten the locknut by hand.
4. Relieve the transducer.
Installation and locking with torque
1. Screw in the threaded connector.
2. Tighten the locknut with a torque of 15 Nm.
NOTE
When locking, the tightening torque must not be shunted through the trans­
ducer.

5.4 Installation with knuckle eyes

Knuckle eyes prevent the application of torsional moments and, where 2
knuckle eyes are used, bending moments, together with lateral and oblique
loads in the transducer. They are suitable for use with quasi‐static loads (load
cycles v10 Hz). Pliable tension/compression bars should be used for dy­
namic loads with higher frequencies.
NOTE
Do not undo any threaded connectors marked with "A" as this could otherwise
irreversibly damage the transducer.
A3181-1.0 en/de/fr
13
HBM