15
16
Tack Mode
This setting may help reduce eye fatigue resulting from the eye frequently
adjusting to differing light levels during rapid tack welding. As the arc
extinguishes, the fi lter will recover to shade 5. If another arc is not struck
within 2 seconds the fi lter will return to the normal light state (shade 3).
Low Battery Indicator
The batteries should be replaced when the low battery indicator fl ashes or LEDs do not fl ash when the buttons
are pressed.
Table 2. Recommended Guide for Shade Numbers
(Adapted from ANSI Z49.1-2003)
Operation
Electrode
diameter inches
Arc current,
amps
Minimum
Protective Shade
Recommended
Shade Number
Shielded metal arc
< 3
< 60
7
---
3-5 60-160 8
10
5-8 160-250 10
12
> 8
250-550
11
14
Gas-metal-arc welding
< 60
7
---
60-160
10
11
160-250
10
12
250-500
10
14
Gas-tungsten-arc
< 50
8
10
50-150
8
12
150-500
10
14
Air-carbon-arc cutting
< 500
10
12
500-1000
11
14
Plasma-arc welding
< 20
6
6-8
20-100
8
10
100-400
10
12
400-800
11
14
Plasma-arc cutting
< 300
8
9
300-400
9
12
400-800
10
14
Carbon arc welding
14
d 1
d 2
delay
d 2
d 1
∑
Table 3
Содержание Speedglas 9100 FX-Air
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