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NT 1
OPERATION
Shielded metal arc
welding
Gas metal arc
welding and flux
cored arc welding
Gas tungsten arc
welding
Air carbon
Arc cutting
Plasma arc welding
Plasma arc cutting
Torch brazing
Torch soldering
Carbon arc welding
Gas welding
Light
Medium
Heavy
Oxygen cutting
Light
Medium
Heavy
(1)
As a rule of thumb, start with a shade that is too dark, then go to a lighter shade which gives sufficient view of the weld zone without going
below the minimum. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs
the yellow or sodium line the visible light of the (spectrum) operation
(2)
These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be used when the arc is hidden by the
w k i
• Periodic cleaning with soapy water solution or standard glass cleaner is
suggested. Air dry or use soft cloth to dry.
• ADF cartridges may be cleaned with soft, dry cloth. The ADF cartridge is
not to be submerged in water or other solution.
• Change or clean polycarbonate impact resistant clear lens when it
becomes dirty or cloudy.
• Store in a clean, dry location.
SHADE GUIDE SETTINGS
GUIDE FOR SHADE NUMBERS
ELECTRODE SIZE
1/32 in. (mm)
Less than 3 (2.5)
3-5 (2.5–4)
5-8 (4–6.4)
More than 8 (6.4)
(Light)
(Heavy)
(2)
(Light )
(2)
(Medium)
(2)
(Heavy)
PLATE THICKNESS
in.
Under 1/8
1/8 to 1/2
Over 1/2
Under 1
1 to 6
Over 6
HELMET CARE AND MAINTENANCE
STORAGE
ARC
CURRENT (A)
Less than 60
60-160
160-250
250-550
Less than 60
60-160
160-250
250-500
Less than 50
50-150
150-500
Less than 500
500-1000
Less than 20
20-100
100-400
400-800
Less than 300
300-400
400-800
–
–
–
mm
Under 3.2
3.2 to 12.7
Over 12.7
Under 25
25 to 150
Over 150
.
3
SUGGESTED ( 1 )
MINIMUM
PROTECTIVE
SHADE NO.
SHADE
(COMFORT)
7
–
8
10
10
12
11
14
7
–
10
11
10
12
10
14
8
10
8
12
10
14
10
12
11
14
6
6 to 8
8
10
10
12
11
14
8
9
9
12
10
14
–
3 or 4
–
2
–
14
4 or 5
5 or 6
6 or 8
3 or 4
4 or 5
5 or 6
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