CE 4/9-13 ESAB 1/1/1/2/379 EN379
4 - light state scale number
9 - lightest dark state scale number
13 - Darkest state scale number
ESAB - Manufactures identification
1 - Optical class
1 - Diffusion of light class
1 - Variation in luminous transmittance class
2 - Angle of Dependence classification
379 - Number of the standard
Helmet Marking Explaination
EN175 B
EN175 – Is the stanard number
B – Is medium energy impact rating
Cover lens markings
EN166 1 B
1. Not Switching – auto lens stays light and will not darken when welding. Stop
welding immediately: Review the sensitivity recommendations and adjust
sensitivity. Clean Lens cover and sensors of any obstructions. Note! Making
sure the sensors are clean and facing the arc; angles of 45°or more any not
allow the arc light to reach the sensors.
2. Not switching – auto lens stays dark after the weld arc is extinguished, or the
auto-lens stays dark when no arc is present.
Fine-tune the sensitivity setting by making small adjustments to the control by
turning it toward the ‘Lo’ setting. In extreme light conditions, it may be necessary
to reduce the surrounding light levels.
During testing or using, in case of any malfunction, please suspend using it and
contact the local sales agent.
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