Jts315La - Jet JTS-315LA Operating Instructions Manual

Test Report No.: No.: 17706687 001
Part II of II
Requirement  Test
Clause
maximum shock acceleration shall be considered
in the selection of transducers.
Fastening of transducers
13.3.5.2.2
Guidance on mounting of transducers is given in
EN ISO 5349-2. The transducer and the
mechanical filter, if used, shall be mounted rigidly
and on the vibrating surface.
Mechanical filters or other appropriate means
may be needed to minimize measurement errors
likely to occur when measuring vibration
containing impulsive elements, such as occur in
percussive toots. For more details, see EN ISO
5349-2.
NOTE High acceleration in the high-frequency
components of the vibration can cause the transducer
to generate false signals (e.g dc shift) in the frequency
range of interest because of excitation of the
resonance of the transducer itself.
13.3.5.3 Calibration of the measurement chain
The whole measurement system shall be
checked both before and after a sequence of
measurement using a calibrator which produces
a known acceleration at a known frequency.
The transducers shall be calibrated in
accordance with ISO 5347 and ISO 16063-1. The
whole measurement system shall be checked
according to the requirements in EN ISO 8041.
13.3.6 Testing and operating conditions of the tool
13.3.6.1 General
Measurements shall be carried out on a new tool
that is only used for the noise and vibration tests
required by this standard.
When the test procedure is not provided in a
relevant Part 2 or there is no relevant Part 2, the
operating conditions and working procedure shall
be specified in sufficient detail as to achieve
appropriate reproducibility. Test procedures
based on a typical real working situation are
preferred. The vibration test may simulate a
single phase of a task or a working cycle,
consisting of a set of operations where the
operator is being exposed to vibration.
If for reasons of better reproducibility a simulated
work condition is defined, the vibration source
shall produce approximately the same magnitude
of vibration as that in a typical working situation. If
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EN 61029-1:2009+A11
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