EWM POWERSHIELD GUARDIAN ECLIPSE Operating Instructions Manual page 15

PROTECTION LEVEL TABLE
PROTECTION LEVEL GUIDE
ELECTRODE SIZE
OPERATION
1/32 INCH (MM)
Less than 3 (2.5)
3–5 (2.5–4)
MMA welding
5–8 (4–6.4)
More than 8 (6.4)
Gas-shielded met-
al-arc welding and
flux cored wire
welding
TIG welding
Gouging with carbon (Light)
electrodes (Heavy)
Plasma arc welding
(Light)
Plasma arc cutting (Medium)
(Heavy)
Brazing
Soldering
Gouging
MATERIAL THICKNESS INCHES MM
Gas
welding
Light Under 1/8
Medium 1/8 to 1/2
Heavy Over 1/2
Cutting with
oxygen
Light Under 1
Medium 1 to 6
Heavy Over 6
As a rule of thumb: Start with an overly dark protection level and then move on to a lighter protection level that allows sufficient
(1)
visibility of the welding zone without falling below the minimum. In oxy-fuel welding or cutting where the welding torch produces a
strong yellow light, a filter lens should be used which absorbs the yellow light or the sodium line of visible light (spectrum).
These values apply when the actual arc is clearly visible. Experience has shown that lighter filters can be used if the arc is covered by
(2)
the workpiece.
ARC
CURRENT (A)
Less than 60
60–160
160–250
250–550
Less than 60
60–160
160–250
250–550
Less than 50
50–150
150–500
Less than 500
500–1000
Less than 20
20–100
100–400
400–800
Less than 300
(2)
300–400
(2)
400–800
(2)
–
–
–
Under 3.2
3.2 to 12.7
Over 12.7
Under 25
25 to 150
Over 150
RECOMMENDED
MINIMUM
PROTECTION LEVEL
PROTECTION LEVEL
(COMFORT)
7
8
10
11
7
10
10
10
8
8
10
10
11
6
8
10
11
8
9
10
–
–
–
Data from ANSI Z49.1-2005
(1)
–
10
12
14
–
11
12
14
10
12
14
12
14
6 to 8
10
12
14
8
12
14
3 to 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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