- 4 -
• ADJUSTING THE FIT OF THE HELMET
The overall circumference of the headgear can be made
larger
or smaller by rotating the knob on the back of the
headgear (See
adjustment “Y” in fig.1). This can be done
whilst wearing the
helmet and allows just the right tension
to be set to keep the
helmet firmly on the head without it being too tight.
• If the headgear is riding too high or too low on your head, adjust
the strap which passes over the top of your head. To
do this
release the end of the band by pushing the locking pin out of the
hole in the band. Slide the two portions of the
band to a greater
or lesser width as required and push the
locking pin through the
nearest hole (See adjustment “W” in fig.1).
• Test the fit of the headgear by lifting up and closing down
the
helmet a few times while wearing it. If the headgear moves
while
tilting, re-adjust it until it is stable.
• ADJUSTING THE DISTANCE BETWEEN THE HELMET AND
THE FACE
Step 1: Undo the block nut (See “T” in fig.1) to adjust the
distance between the helmet and your face in the down position.
Step 2: Loosen the block nut on either side of the helmet and
slide it nearer or further from your face (See adjustment “Z” in
fig.1). It is important that your eyes are each the same distance
from the lens. Otherwise the darkening effect may appear
uneven.
Step 3: Re-tighten the block nut when adjustment is complete.
• ADJUSTING VIEW ANGLE POSITION
Please see fig.2.
•
SELECTING SHADE LEVEL
Select the shade level you require according to the welding
process you will use by referring to the “Shade Guide Table”
below for settings. Turn the shade control knob to the shade
number required.
• SENSITIVITY
The sensitivity can be set to “H” (high) or “L” (low) by using the
infinitely dial knob on the back of the shade cartridge. The
“Mid-High” setting is the normal setting for everyday use. The
maximum sensitivity level is appropriate for low welding current
work, TIG, or special applications. Where the operation of the
helmet is disturbed by excess ambient light, or another welding machine close by, use the
“L” setting. (See fig.3a). As a simple rule for optimum performance, it is recommended to set
sensitivity to the maximum at the beginning and then gradually reduce it, until the filter reacts
only to the welding light flash and without annoying spurious triggering due to ambient light
conditions (direct sun, intensive artificial light, neighbouring welder's arcs etc.).
• SELECTING DEL
AY TIME
When welding ceases, the viewing window automatically changes from dark back to light but
with a pre-set delay to compensate for any bright afterglow on the workpie
ce. The delay time
/ response can be set to
“S” (short: 0.1 sec.) or “L” (long: 1.0 sec.). As you require using the
infinitely dial knob on the back of the shade cartridge. (See fig.3b). It is recommended to use
a shorter delay with spot welding applications and a longer delay with applications using
higher currents. Longer delays can also be
used for lower current TIG welding, and TIG /
MIG / MAG pulse.
• SELECTING THE GRIND OPTION
When the
shade
knob is turned to the “Grind”
position, the shade function is turned off
allowing a clear view to grind a weld with the
helmet providing face protection. Before
restarting welding work, ensure that the shade
function is turned back on before welding again
(See fig.4).
•
BATTERY INSTALLATION
Install batteries into helmet property, according to positive and negative terminal marking
on battery jar (See fig.5).
• POWER
This ADF cartridge is powered by solar cell and 2 AAA Alkaline batteries. Replace batteries
when LOW BATTERY light is lit (See fig.5).
• TEST
Press and hold "TEST" to preview shade selection before welding (See fig.5). When
released then viewing window will automatically return to the light state (3.5 Shade). Press
"TEST", if viewing window does not turn to dark state, replace batteries and try again.
• You are now ready to use the helmet. The shading may be adjusted during use by
re-setting the potentiometer control.
• MARKING
The shell and the auto darkening filter are marked accordingly. Classification for eye and
face protection is following EN379, EN175, EN166.
Zekler Auto darkening welding helmet ADF725S
DIN CERTCO Gesellschaft fuer
Konformitaetsbewertung mbH
Alboinstrasse 56
12103 Berlin
Germany
Notified body number 0196
Marking on front cover lens:
"SYD 1 B" : SYD: manufacturer's identification
1: optical class
B: resistance to
medium energy impact
Marking on helmet:
"SYD EN 175 B" : SYD: manufacturer's identification
EN 175: number of this standard
B: resistance to medium energy impact
Marking on Inside cover lens:
"SYD1 B" : SYD: manufacturer's identification
1: optical class
B: resistance to
medium energy impact
Light state scale no
Lightest dark state scale no
Darkest state scale no
Manufacturer’s identification
Optical class
Diffusion of light class
Variations in luminous transmittance class
Angle dependence of luminous transmittance class
Number of this standard
4 / 9 -
13
SYD
1 / 1 / 1 / 2 379
fig.5
LOW
BATTERY
TEST
