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Speedglas™ SL Welding Shield

Data Sheet
The 3M™ Speedglas SL Welding shield (part no 70 11 20) Speedglas SL:
Standards:
is designed to fit welders who demand, low weight and – Suitable for most welding applications up to shade 12 in – Five user selectable dark shades 8, 9, 10, 11 and 12. Auto-Darkening Welding Filter
– Four user selectable levels of sensitivity ensure reliable EN 379:2003 Personal eye-protection – Automatic welding – Excellent visibility in light state, shade 3, for easy welding preparation and after treatment. Protection Plate. Clear Safety Lens
EN 166:2001 Personal eye-protection – Specifications. – Multiple adjustments for highest comfort. Welding Shield
– Can be used together with 3M Maintenance Free EN 175:1997 Personal eye-protection – Equipment for eye Respirators for welding eg. 9925 and 9928. and face protection during welding and allied process. Optical class
The Speedglas SL Welding Shield is designed for most welding processes. Specifically for MMA, MIG/MAG and TIG welding where the shade range 8-12 is recommended. 1/2/2/3Pos 1 Optical class
1/2/2/3Pos 2 Diffusion of light class
1/2/2/3Pos 3 Variation of luminous
1/2/2/3Pos 4 Angel dependence of luminous
The Speedglas SL welding shield and welding filter are approved as an Eye and Face protection system. The Mechanical Strength
system meets the Basic Safety Requirements under Article EN 166, EN 175
11A of European Directive 89/686/EEC, PPE Directive, and requirements in the European standards (mentioned The Speedglas SL system was examined at the design stage by: DIN Certco Gesellschaft für Konformitätsbewertung Additional standards:
mbH, eye protection and personal protection equipment, EN 169:2002 Personal eye-protection – Filters for welding and related techniques – Transmittance requirements and recommended use Gartenstrasse 133, DE-73430 Aalen, GERMANY. EN 61000-6-3:2001 Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for residential, commercial and The Speedglas SL welding filter, is in conformity with the EN 61000-6-2:2001 Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for Industrial environments provisions of Council Directive 89/336/EEC, EMC Directive, and requirements in the European Standards (see Protection plates: Polycarbonate
The product was examined at the design stage by an Plastics: PPA, PA, PBT
Optical Part: LC-Elements, Glass, Polarizers
Electronics: Printed Circuit Board assembly
Batteries: Lithium 3V Type CR2032
Outer protection plate:
The Speedglas SL welding filter automatically switches on and off. Inner protection plate:
Selection of Shade Number setting
Five different Shade Number settings are available in the dark Batteries:
State 8, 9, 10, 11 and 12. In order to see which Shade Number the welding filter is currently set to, momentarily press the Shade button. To reselect another Shade Number, press the Shade button again while the LED is flashing, and then keep pressing Welding shield
the button to increment the flashing LED to the correct Shade Number. Setting of detector Sensitivity function
Setting the performance of the photo detector system (which responds to the light from the welding arc) is made with the Welding filter
Sensitivity button. In order to see which position the welding filter is currently set to, momentarily press the Sensitivity button. To select another setting, press the Sensitivity button again while the LED is flashing, and continue to press until the LED shows the desired setting. The Speedglas SL welding shield is not suitable for laser Position 1 Least sensitive setting. Used if there is disturbing light welding or laser cutting. The welding shield is excellent for all positions except heavy duty overhead cutting/welding Position 2 Normal position. Used for most types of welding indoors and outdoors. operation due to the risk of molten metal. Position 3 Position for welding with low current or where the welding arc becomes stable. (eg TIG welding at low amps) Position 4 Extreme photo detector sensitivity. Suitable for very low current welding or pipe welding where part of the arc is Headband:
Finding the right setting of detector
In order to find a suitable sensitivity setting for the detector, start with the setting, before welding, in Position 2. This is a normal position that functions in the majority of situations. If the filter does not darken during welding as desired, raise the sensitivity to Position 3 or 4 until a definite shift to dark position takes place. Viewing area:
Should a too high sensitivity be selected, it is possible that the UV/IR protection:
filter remains in the dark position after welding is complete due to surrounding light. Should this arise, make an adjustment to a less sensitive setting where the welding filter both darkens or lightens Switching time light-dark: 0,1 ms (+23ºC)
as desired. If the welding filter functions well in Position 2, but Opening time dark-light: Shade number 8: 60 ms
darkens due to another welding process being in progress in the Low battery indicator
The “low battery” indicator flashes repeatedly when the battery
Light state:
Dark state:
The welding filter will not go to dark position in applications Fail/Safe (Off) state:
where there is no welding light at all visible for the photo detector Battery type:
Battery life time:
Range of temperature
Other light sources with fast flashing light eg warning lights can Storage:
make the photo detector react and make the filter darken/lighten with the same frequency as the flashing light source. Note! The battery should be replaced when the low battery indicator flashes or shade and sensitivity LED´s do not flash when the buttons are pushed. Recommended shade numbers
according to EN 379:2003
Current in amperes
Welding process
MMAW (covered electrodes)
MIG with light alloys
Air-arc gouging
Plasma jet cutting
Microplasma arc welding
The table recommends best dark shade of welding filter for various working applications. According to the conditions of use, the next greater or the next smaller scale number can be used.

3M Svenska AB
Ernst Hedlunds väg 35
SE-780 41 GAGNEF

Source: http://www.munkaruhaseller.hu/fotky6087/speedglas_sl_technikai_adatlap.pdf