Lissmac DTS 901-V - Noise Power Level; Hand Arm Vibration

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2.5. Noise power level
Danger!
In an environment with a high noise level, for example when working near loud machinery,
wearing hearing protection in the workplace is prescribed for above 85 dB(A).
The details define volume of noise level, related to the operator workspace and the noise power
level of the masonry saw.
The measured noise level L
wA
99 dB(A)
The emission noise pressure at the operator's place L
pA
84 dB(A)
The guaranteed noise power level is 100 dB(A)
The values are determined by the noise emission measurement.
Testing is done without load with the largest permitted saw blade of Ø 900 mm.
Without load Porous concrete
cutting depth 95
mm
Sand-lime brick
cutting depth 95
mm
Perforated brick
cutting depth 95
mm
Continuous
sound power
level at
workplace L
pA
84 dB(A) 87 dB(A) 94 dB(A) 91 dB(A)
Noise power
level L
wA
99 dB(A) 100 dB(A) 107 dB(A) 106 dB(A)
Measurement tolerances:
2.5 dB for the A-value noise power level
4 dB for the A-valued emissions noise pressure level
Emission noise pressure is done in compliance with
EN ISO 3744, EN 12418 and guidelines 2000/14/EC.
2.6. Hand arm vibration
The given value was determined with a maximum saw blade diameter of 900 mm.
The total vibration value is under the action value of 2.5 m/s
2
.
In practice, these values are influenced by the following conditions:
- Quality of the saw blade
- Number of saw blades
- Weight of the operator
- Feed speed
- Condition of the machine
- Material properties and type