Kemppi ADF filter for Beta - Manual (Page 3)

COMMON PROBLEMS AND REMEDIES
Auto-Darkening filter does not darken or flickers
• Front cover lens is soiled or damaged (Change the cover lens).
• Sensors are soiled (Clean the sensors surface).
• Welding current is too low (Adjust the sensitivity to a higher
level).
Slow response
• Operating temperature is too low (Do not use at temperatures
below -10º C or 14º F).
Poor vision
• Front/inside cover lens and/or the filter is soiled (Change cover
lenses).
• There is insufficient ambient light.
• Welding shade number is incorrectly set (Reset the welding
shade number).
SELECTING SHADE LEVEL
Select the shade level you require according
to the welding process you will use. Refer to
the “Shade Guide Table” below for necessary
settings. Turn the shade control knob on the
filter to the shade number required.
SELECTING DELAY TIME
When welding ceases, the viewing window
automatically changes from dark back to
light but with a pre-set delay to compensate
for any bright afterglow on the workplace.
The delay time/response can be set to
“S” (short: 0.1 sec.) or “L” (long: 1.0 sec.). Set
as required using the variable dial knob
on the back of the shade cartridge. It is
recommended to use a shorter delay with
spot welding applications and a longer delay
with applications using higher currents.
Longer delays can also be used for low
current TIG welding in order to avoid the
filter opening when the light path to the
sensors is temporarily obstructed by a hand,
torch, etc.