Lincoln Electric 718115 Spirit II 275 - Manual (Page 23)

Spirit II User’s Manual Section 2: Specifications
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2-11
Airborne Noise Emissions
The system generates high noise levels while cutting. Depending on the size of the
cutting area, distance from the cutting torch, and arc current cutting level, acceptable
noise levels may be exceeded. Proper ear protection should be used as defined by
local or national codes. The following chart gives the noise levels generated by the
system when operating at 275 amps, 145 arc volts. The measurements were made
with a sound level meter.
Distance From Torch
A-Weighted Sound
Pressure Level
C-Weighted Sound
Pressure Level
1 meter horizontal / 1.6
meters above the
workpiece
110 dB 107 dB
The maximum noise level is 127 dB at a distance of 3 inches (76.2 mm) from the torch
while cutting at 275 amps, 145 arc volts.