www.fubag.ru
O
m
perator's
anual
-
-
7
8. Common problems and remidies
WARNING
!
.
Operator must stop using the auto - darkening filter welding helmet immediately
if the above-mentioned problems cannot be corrected
FAULT
CAUSE
REMEDY
Irregular
Darkening
Dimming
Headband has been set
unevenly and there is an uneven
distance from the eyes to the
filter's lens.
Reset headband to reduce the
difference to filter.
Front cover lens is soiled or
damaged.
Change lens cover.
Sensors are soiled or blocked.
Clean the sensors' surface.
Check that arc sensors are not
blocked against the arc light.
Set the Sensitivity regulator to
the upper position.
Welding current is too low.
Turn the switch position.
Auto-Darkening
Filter Does Not
Darken Or Flickers
Photocell is not active.
Activate the photocell by
subjecting to direct sunlight for
20-30 minutes before use.
Side parts of the
filter are lighter
than central one.
Normal situation
This a natural feature of the
LCD. Such effect is not
harmful for eyes. However in
order to work in comfortable
conditions try to maintain 90°
view angle.
Filter stays dark
after the arc went
out or when there
is no arc.
Sensors are soiled. Sensitivity is
not properly adjusted.
Inspect the sensors and clean
them if necessary. Set the
Sensitivity regulator to the
lower position. If the welding
zone is lighted intensively
reduce the light.
Slow response
Operating temperature is too low.
Do not use at temperatures
below - 5 °С or 23 °C
Front /inside cover lens and/or
filter lens are soiled
Replace lens.
There is insufficient ambient light
Poor Vision
Shade number is incorrectly set.
Reset the shade number.
Welding Helmet
Slips
Headband is not adjusted
properly.
Readjust headband.