Hyd-Mech DM-1215, Use And Maintenance Manual

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Use and maintenance manual DM-1215
Noise level of the machine
Noise can cause hearing damage and represents one the problems faced by many
countries who adopt their own standards. In accordance with the
EEC MA­
CHINES DIRECTIVE 2006/42/CE , we are listing the standards that specify noise
levels for machine tools.
The following paragraph explains the modes and the detected sound power and
pressure values released by the sawing machine.
These values comply with norm EN 13898:2003 + A1:2009, EN ISO 12100:2010
and EN ISO 4871:2009,concerning the rules for drawing and presenting a
procedure for noise tests and the declaration and check of sound emission values
by machines and equipment.
Noise level measurement
Noise levels are measured using an instrument known as an Integrator noise-
meter which registers the equivalent continuous acoustic pressure level at the
work station.The damage caused by noise depends on three parameters: level,
frequency and duration. The equivalent level concept Leq combines the three
parameters and supplies just one indication. The Leq is based on the principle of
equal energy, and represents the continuous stationary level containing the same
amount of energy, expressed in dBA, as that actually fluctuating over the same
period of time.This calculation is made automatically by the integrator noise-
meter. The measurements are taken every 60 seconds, in order to obtain a
stabilised value. The reading stays on the display for a sufficient time to enable a
reading to be taken by the operator.Measurements are taken by holding the
instrument at approximately 1 metre from the machine at a height of 1.60 metres
above the platform at the operator's work station.
Two measurements are taken: the first while the machine operates without cutting
anything, the second while cutting in manual mode.
Noise level values
Identification
Machine type
Band saw for metal applications
Model DM-1215
Reference standard ISO 3746
Results
Test 1st
Description
C 40 steel cut - pipe 50x82 mm
Bimetal band 3440x27x0,9 S.GLB Z 5/7
Results
Mean sound level (Leq) 72,45 dB (A)
Environmental correction (K) 3,84 dB(A)
Peak sound power (Lw) 83,60 dB(A)
Test 2nd
Descriprion
C 40 steel cut - solid rod 150 mm dia. Ø
Bimetal band 3440x27x0,9 M42 Z 3/4
Results
Mean sound level (Leq) 70,33 dB(A)
Environmental correction (K) 3,84 dB(A)
Peak sound power (Lw) 81,48 dB(A)
Test 3rd
Description
80 mm diameter solid tube in chromed stainless steel
Bimetal band 3440x27x0,9 S.GLB Z 10/14
Results
Mean sound level (Leq) 71,95 dB(A)
Environmental correction (K) 3,84 dB(A)
Peak sound power (Lw) 83,11 dB(A)