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Sensitivity
The programming and 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 SENS button. To select
another setting, press the SENS button repeatedly until the LED shows the
desired setting.
Position
Locked in light state (shade 3) at all times
Used for grinding
Position 1 Least sensitive setting. Used if there is interference
from other welders’ arcs in the vicinity.
Position 2 Normal position. Used for most types of welding
indoors and outdoors.
Position 3 Position for welding with low current or with stable
welding arcs. (eg TIG welding)
Position 4 Suitable for very low current welding, use of inverter-
type TIG welding machines.
Position 5 Most sensitive setting. Used for TIG welding where
part of the arc is obscured from view.
Position
Locked in selected dark state. Same function as a
passive welding fi lter.
Position locked light state
This setting could be used for grinding or other non-welding activities. When
the welding fi lter is locked in the light state (shade 3) the LED under the
symbol will fl ash every 8 seconds to alert the user. The welding fi lter must be
unlocked before arc welding is performed, by choosing a sensitivity setting
for welding. When the welding fi lter turns OFF (after 1 hour inactivity), it will
automatically leave the locked state and go to sensitivity setting 2.
Position 1-5
If the fi lter does not darken during welding as desired, increase the
sensitivity until the welding fi lter switches reliably. Should the sensitivity
be set too high, the fi lter may 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 fi lter both darkens and lightens as desired.