JSP cobra Bedienungsanleitung Seite 5

FUNCTIONS OF SWITCHES:
SELECTING THE OPERATING MODE
• Use the switch button on the back of shade cartridge to select the mode appropriate for the work activity.
• Weld mode - Used for most welding applications. In this mode the shade function is turned on when it optically senses a welding arc. Select shade
level, delay time and sensitivity as require.
• Grind Mode - Used for metal grinding applications. In this mode, the shade function is turned off. The shade is fixed shade DIN 3.5 that allowing a clear
view to grind a weld with the helmet providing face protection.
TEST
Press and hold test to preview shade selection
before welding. When released then viewing
window will automatically return to the light
state (3.5 Shade).
SELECTING DELAY 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 workpiece. 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.
• 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 low current TIG welding in order to avoid the filter opening when the light path
to the sensors is temporarily obstructed by a hand, torch, etc.
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 "low" setting.
• 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.).
REPLACEMENT OF AUTO-DARKENING LENS:
1
3
2
Remove the outer screen
holder by pushing the two
Top-Clips on the inside of
the visor, and then pulling
the screen holder from the
centre points away from the
front of the visor.
The anti-splatter screen can
be replaced at this point,
then clip the screen holder
back in following step 4.
4
Gently push the replacement
Auto-Darkening Lens into
place, locking over the
bottom of the lens recess.
4
SELECTING SHADE LEVEL
Select the shade level you require according
to the welding process you will use by referring
to the "Shade Guide Table" for settings. Turn
the shade control dial on the lens to the shade
number required.
3
2
1
From the front of the visor,
gently push the bottom of
the Auto-Darkening Lens
out from the lens recess
and slide it towards you
from the inside of the visor.
Replace the Outer Screen
Holder, by hooking the tabs
into the holes at the bottom
of the screen holder recess,
then pushing the Side-Clips
and the Top-Clips into
position.