3M SPEEDGLAS SL, User Manual

Page: 5 / 84

1
Instruction 3M™ Speedglas™ SL Welding Shield
1ï/
BEFORE WELDING
For your own protection read these instructions carefully
before using the Speedglas SL welding shield.
The complete assembly is illustrated in figure A:1.
Adjust the welding shield according to your individual
requirements. (see figure B:1–B:3).
The Speedglas SL welding shield is designed to be
used in arc welding applications where shade 8-12 is
recommended. Shade number should be chosen according
to table on page 64. The unit is suitable for all arc welding
processes such as MMA, MIG, MAG, TIG and Plasma Arc.
The Speedglas SL welding shield gives permanent
protection (shade 12) against harmful UV- and IR-radiation,
regardless of whether the filter is in the light or dark state
or whether the autodarkening function is operational.
The welding filter has two photo sensors that react
independently and cause the filter to darken when a welding
arc is struck.
Two lithium batteries are used as the power source. (3V
CR2032)
The Speedglas SL welding shield is equipped with an auto
on function and will automatically switch off when not used.
NOTE!
Use only with original Speedglas brand spare parts such
as inner and outer protection plates according to the part
numbers provided in these instructions. The use of substitute
components might impair protection and may invalidate
claims under the warranty or cause the shield to be non
compliant with Protection Classifications and approvals.
NOTE!
The Speedglas SL welding shield is not suitable for
laser welding, laser cutting or gas welding/cutting (e.g.
oxyacetylene). The 3M Speedglas Welding Shields are not
designed for overhead welding/cutting operations where
there is a risk of burns from falling molten metal.
APPROVALS
The product has been shown to meet the Basic Safety
Requirements under Article 10 of the European Directive
89/686/EEC and is thus CE marked. The product complies
with the harmonized European Standards EN 175, EN 166
and EN 379. The product was examined at the design state
by DIN Certco Prüf- und Zertifierungszentrum (Notified
body number 0196).
The product is in conformity with the provisions of
European Directive 2014/30/EU (EMC - Electromagnetic
Compatibility) and 2011/65/EU (RoHS - Restriction of the
use of Hazardous Substances).
MARKINGS
The welding filter is marked with the shade range.
The eye and face protection classification is made according
to EN 379, EN 166, EN 169 and EN 175.
The following is an example (EN 379):
Light shade
3 / 8-12 3M 1 / 1 / 1 / 2 / EN379 CE
Dark shade(s)
Manufacturer identification
Optical class
Diffusion of light class
Variations in Luminous transmittance class
Angle dependency class
Certification mark or number of standard
Note!
The above is an example. Valid classification is
marked on the welding 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.
= Read the instructions before use
= Shall be disposed of as electrical and
electronic waste
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, momentarily 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.
SENSITIVITY
The sensitivity of the photo detector system (which
responds to the light from the welding arc) can be adjusted
to accommodate a variety of welding methods and
workplace conditions. In order to see the current sensitivity
setting, 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.
Position 1
Least sensitive setting. Used if there is interfe-
rence from other welders’ arcs in the vicinity.
Position 2 Normal position. Used for most types of wel-
ding indoors and outdoors.
Position 3 Position for welding with low current or with
stable welding arcs. (eg TIG welding)
Position 4 Extreme photo detector sensitivity. Sui-
table for very low current welding, use
of inverter-type TIG welding machines
or pipe welding where part of the arc is
obscured from view.
FINDING THE RIGHT SENSITIVITY SETTING
In order to find a suitable sensitivity setting, start with the
setting, before welding, in Position 2. This is the default
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 the welding filter switches
reliably. Should the sensitivity be set too high, it is possible
that the filter will remain in the dark state after welding
is complete due to ambient light. In this case, adjust the
sensitivity downward to a setting where the welding filter
both darkens or lightens as desired.