Selecting Delay Time - Lincoln Electric Bester Screen II Manual De Instrucciones

Sensitivity
The sensitivity can be set to "HI" (high) or "LO" (low) by using the infinitely dial knob on the back of the auto darkening
filter. The "Mid-High" setting is the normal setting for everyday use. The maximum sensitivity level is appropriate for low
welding current work, TIG, or special applications. Where the operation of the helmet is disturbed by excess ambient
light, or another welding machine close by, use the "LO" setting. As a simple rule for optimum performance, it is
recommended to set sensitivity to the maximum at the beginning and then gradually reduce it, until the filter reacts
onlyto the welding light flash and without annoying spurious triggering due to ambient light conditions (direct sun,
intensiveartificial light, neighbouring welder's arcs etc.).

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 workpiece. The delay time / response can be set to "S" (short: 0.1 sec.)
or"L"(long: 1.0 sec.) as you require using the infinitely dial knob on the back of the auto darkening filter. 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, and TIG / MIG / MAG pulse.
ALWAYS TEST TO BE SURE THE ADF CARTRIDGE IS CHARGED BEFORE WELDING
The helmet can be placed in sunlight to charge. Do not store the helmet in a dark cabinet or other storage area for long
periods. While welding, the arc also charges the ADF cartridge.
Shade Selection Chart
Recommended shade numbers according to EN 379:2003
If your helmet does not include any one of the shades referenced above, it is recommended you use the next darker
shade.
PROCESS
2
MMAW (STICK ELECTRODES)
MAG
TIG
MIG
MIG WITH LIGHT ALLOYS
AIR-ARC COUGING
PLASMA JET CUTTING
MICROPLASMA ARC WELDING
2
*** THIS HELMET IS NOT SUITABLE FOR LASER WELDING PROCESS ***
HELMET MAINTENANCE AND CARE
Replacing Front Cover Lens : Replace the front cover lens
if it is damaged (cracked, soiled or pitted). Place your finger
or thumb into recess (C) at the bottom edge of the cover lens
and flex the lens upwards until it releases from the edges
marked A and B. (Refer to figure 1).
Replace the Inside Cover Lens: if it is damaged (cracked,
soiled or pitted). Place your fingernail in recess above
cartridge view window and flex lens upwards until it releases
from edges of cartridge view window.
Cleaning: Clean helmet by wiping with a soft cloth. Clean cartridge surfaces regularly. Do not use strong cleaning solutions.
Clean sensors and solar cells with soapy water solution and a clean cloth and wipe dry with a lint-free cloth. Do NOT
submerge shade cartridge in water or other solution.
Storage: Store in a clean, dry location.
6 10 15 30 40
8
8
8 9
9
10
10
9
4 5 6 7
6 10 15 30 40
figure 1
CURRENT IN AMPERE
60 70 100 125 150 175 200 225 250 300 350 400 450 500 600
9 10
9 10
10 11
10
10 11
8 9 10
60 70 100 125 150 175 200 225 250 300 350 400 450 500 600
Fitting New Cartridge: Take the new shade cartridge and
pass the potentiometer cable under the wire loop before
placing the cartridge into its retaining frame inside the helmet.
Hinge down the wire loop and ensure the front edge of the
loop (D) is properly retained under the retaining lugs (E) as
shown in figure 2.
Position the shade potentiometer to the inside of the helmet
with the shaft protruding through the hole.
Secure potentiometer to shell. On the outside of the helmet,
push the shade control knob onto the shaft.
4
11 12
11 12
12 13
11 12
11 12
11 12 13
12 13
11 12
figure 2
13 14
13 14
13 14
13 14
14 15