7
MECHANICAL INSTALLATION
7.1
Important precautions during installation
S
Handle the transducer with care.
S
Be sure to observe the requirements for the force application parts according to the
following sections of this manual.
S
Welding currents must not be allowed to flow over the transducer. If there is a risk
that this might happen, you must use a suitable low-ohm connection to electrically
bypass the transducer. HBM provides the highly flexible EEK ground cable for this
purpose, for example, that is screwed on above and below the transducer.
S
Make sure that the transducer cannot be overloaded.
S
Be sure to observe the screw-in depths of the connected force application parts, such
as threaded rods or knuckle eyes (see below).
WARNING
There is a danger of the transducer breaking if it is overloaded. This could endanger the
operating personnel of the equipment in which the transducer is installed.
Implement appropriate safety measures to avoid a force overshoot or to protect against
resulting dangers. The maximum possible mechanical stresses, especially the breaking
force, are noted in the specifications.
During installation and operation of the transducer, observe the maximum parasitic forces
- lateral forces, bending moments and torques, see technical data - and the maximum per
missible load capacity of the force application parts being used.
7.2
General installation guidelines
The forces to be measured must act on the transducer as accurately as possible in the
direction of measurement. Torsional and bending moments, eccentric loading and lateral
forces can produce measurement errors and can destroy the transducer if limit values
are exceeded.
The customer's own structural elements must meet the following conditions:
S
The upper and lower force application parts must be aligned as accurately as possible
in one axis. Installation is made easier by centering aids on the underside. The center
ing diameter corresponds to dimension P, the effective centering depth is 3
S
The force application surfaces must be absolutely clean and fully load-bearing.
S
When measuring compressive forces, make sure the support structure is rigid.
S
The external thread (provided by the customer) for connection to the lower internal
thread of the sensor must comply with a thread tolerance of
S
The threads must be cleaned of any deposits and soaked with graphite-free grease
before being screwed in.
Z4A
MECHANICAL INSTALLATION
mm.
6g.
13