Miller OM-280995C, Руководство пользователя

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OM-280995 Page 13
SECTION 10 − TROUBLESHOOTING
Trouble Remedy
Not switching – auto-lens
stays light and does not
darken when welding or
cutting.
Stop welding or cutting immediately: Make sure the lens is turned
On.
If power is On, check the shade settings. Also review sensitivity
recommendations and adjust sensitivity if possible.
Clean lens cover and sensors of any obstructions. Make sure the
sensors are facing the arc; angles of 45 or more may not allow
the arc light to reach the sensors.
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.
Move weld-mask away from light source.
Inconsistent or lighter
auto-lens shading in the
dark-state, noticeable on
the outside edges and cor-
ners.
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.
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
weld-mask.
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.
Check the lens cover for dirt and spatter that may be blocking the
arc sensors.
Move closer to arc.