10177245 Rev. 2 / OM-243792 Page 25
Not Switching – auto-lens
stays dark after the arc is
extinguished, or the auto-
lens stays dark when no
arc is present.
Reduce Sensitivity setting (see Section 3-6). In extreme light con-
ditions, it may be necessary to reduce the surrounding light levels.
If the lens remains dark, press the Auto On/Off button to return
lens to the clear state.
Sections of the auto-lens
are not going dark, distinct
lines separate the light and
dark areas.
Stop welding or cutting immediately: The auto-lens may be
cracked which can be caused by the impact of dropping the hel-
met.
Weld spatter on the auto lens may also cause cracking. (The lens
may need to be replaced; most cracked lenses are not covered by
warranty).
Switching or Flickering –
the auto-lens darkens then
lightens while the welding
or cutting arc is present.
Review the sensitivity setting recommendations and increase the
sensitivity if possible. Be sure the arc sensors are not being
blocked from direct access to the arc light. Clean/replace cover
lens and make sure sensors are clean.
Check the lens cover for dirt and spatter that may be blocking the
arc sensors. Increasing Lens Delay 0.1 − 0.3 second may also
reduce switching.
Inconsistent or lighter
auto-lens shading in the
dark-state, noticeable on
the outside edges and
corners.
Referred to as an angle of view effect, auto-darkening lenses
have an optimum viewing angle.
The optimum viewing angle is perpendicular or 90 to the surface
of the auto-lens. When that angle of view varies in the dark-state,
welders may notice slightly lighter areas at the outside edges and
the corners of the lens. This is normal and does not represent any
health or safety hazard.
This effect may also be more noticeable in applications where
magnifying lenses are used.
Notes
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