Section 8 − Troubleshooting - Hobart XFS Series Owner's Manual

SECTION 8 − TROUBLESHOOTING
Trouble
Auto-lens not On; auto-
lens does not darken mo-
mentarily when arc is
struck (XFS) or On button
is pressed (XVS).
Auto-lens not switching –
auto-lens stays light and
does not darken when
welding or cutting.
Not Switching – auto-lens
stays dark after the arc is
extinguished, or the auto-
lens stays dark when no
arc is present.
Sections of the auto-lens
are not going dark, distinct
lines separate the light and
dark areas.
Switching or Flickering –
the auto-lens darkens then
lightens while the welding
or cutting arc is present.
Inconsistent or lighter
auto-lens shading in the
dark-state, noticeable on
the outside edges and cor-
ners.
XFS Models:
Expose the solar cell to bright sunlight for 30 minutes before use.
XVS Models:
Check batteries and verify they are in good condition and installed
properly.
Check battery surfaces and contacts, and clean if necessary.
Check battery for proper contact and gently adjust contact points
if necessary. This is particularly important if the helmet has been
dropped.
All Models: Stop welding or cutting immediately: Make sure the
lens is on.
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.
XVS Models:
Review sensitivity recommendations and adjust sensitivity if pos-
sible.
XVS Models:
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 On button to return lens to the
clear state.
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 cov-
ered by warranty).
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. Increasing Lens Delay 0.1 − 0.3
second may also reduce switching.
XVS Models: Review the sensitivity setting recommendations
and increase the sensitivity if possible.
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.
Remedy
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