Miller Titanium Series Petunjuk Pengoperasian - Halaman 22
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Trouble
Auto lens not ON – auto-
lens will not darken mo-
mentarily when the Reset
button is pressed.
Not switching – auto-lens
stays light and will not
darken when welding.
Not Switching – auto-lens
stays dark after the weld
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
arc is present.
Inconsistent or lighter
auto-lens shading in the
dark-state, noticeable on
the outside edges and cor-
ners.
OM-246 377 Page 20
SECTION 11 − TROUBLESHOOTING
Check batteries and verify they are in good condition and installed
properly. Also, 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. Verify left and right battery trays are
installed on the correct sides.
Stop welding immediately: Press the Reset button if lens is Auto-
On type. If lens if Manual-On type, make sure the lens is turned
On. If power is on, review the sensitivity recommendations and
adjust sensitivity. Clean lens cover and sensors of any obstruc-
tions. Make sure the sensors are facing the arc; angles of 45_ or
more may not allow the arc light to reach the sensors.
Fine-tune the sensitivity setting by making small adjustments to
the control by turning it toward the "min" setting. In extreme light
conditions, it may be necessary to reduce the surrounding light
levels.
Stop welding immediately: The auto-lens may be cracked which
can be caused by the impact of dropping the helmet. 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).
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. Increas-
ing Lens Delay 0.1 − 0.3 second may also reduce switching.
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