Mounting Instructions - Hbk Hbm Rtn Montageanleitung

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MOUNTING INSTRUCTIONS

When mounting the load cells, pay attention to the following:
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Please handle load cells with care!
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Load cells are precision sensors and so their achievable accuracy depends greatly on
their being mounted correctly!
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Use suitable hoisting gear for mounting the weighing device!
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Do not overload load cells even briefly (e.g. due to unevenly distributed support
loads)!
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When carrying out adjustment work that could endanger the load cells, use supports
(dummies) of equal height!
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The load must be introduced concentrically to the load application surface and in the
measurement direction of the load cell. Use convex thrust pieces with sufficiently
large radii (HBM accessory).
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Avoid lateral forces and torques (also see the "Specifications" section)!
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Depending on the construction, use anti-liftoff devices and limit stops if necessary!
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Ensure the force application points of the load cells are all on the same level. The
mounting accessories include shims for this purpose (see section 9)!
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Protect load cells against
- one-sided heat radiation
- the effects of subsequent welding work
- strong temperature variations!
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To prevent rapid wear, grease the force application part. Please take care not to use
too much grease, as this will cause the rubber ring of the cell to stick (from maximum
capacity >4.7 t)!
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The optional cable with outer braided wire sheath is intended for use when there is
increased mechanical stress (e.g. damage caused by gnawing rodents). If this cable
is used, the outer braided wire is connected to potential equalization at least once, to
avoid accidental energization. This outer braided wire is not used to shield the load
cell. Instead, the inner braided wire of the load cell cable (also see section 5.5
"EMC protection", page 12) is used for shielding.
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Every load cell should be bridged with a twisted copper cable (e.g. EEK... from HBM = approx.
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16 mm ) during or immediately after installation. This prevents damage due to welding currents.
Grounding the load cell reduces the risk of it sustaining damage due to lightning strikes.
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MOUNTING INSTRUCTIONS
RTN