3M SPEEDGLAS SL User Instructions page 7

The following is an example (EN 379):
Light shade
Dark shade(s)
Manufacturer identification
Optical class
Diffusion of light class
Variations in Luminous transmittance class
Angle dependency class (optional marking)
Certification mark or number of standard
Note! The above is an example. Valid classification is marked on the wel-
ding filter.
On the welding shield and the outer protection plate, markings indicate
safety class for protection against high speed particles. F stands for low
energy impact and B stands for medium energy impact. If the protection
meets the requirements at extremes of temperature (-5°C to +55°C) the
marking is completed with the letter T.
Additional markings on the product refer to other standards.
Storage
Store in a clean and dry environment, temperature range -30°C to + 70°C
and relative humidity less than 90% RH.
FUNCTIONS
On/Off
The Speedglas SL welding shield turns on and off automatically.
Shade
Five different Shade Number settings are available in the dark State 8, 9,
10, 11 and 12. In order to see the current Shade Number setting, momen-
tarily press the Shade button. To reselect another Shade Number, press
the Shade button again while the LED is flashing, and then keep pressing
the button to incrementally move the flashing LED to the correct Shade
Number.
3 / 8-12 3M 1 / 1 / 1 / 2 / EN379 CE
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