Denyo DLW-300LS, Инструкция по эксплуатации, Страница: 29 / 50

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8-5 In Welding Operation
During arc welding or arc cutting operation, be sure to use a cover glass
to protect your eyes. It is very dangerous to operate without a protector
such as mask, safety goggles or hand shield.
- Reference - Numbers of bright degree of lens
Applied electrode size
color depth of
filter glass
φ1.6 to φ4.0 mm
(1/16 to 5/32 inches)
1 0
φ5.0 to φ6.0 mm
(3/16 to 1/ 4 inches)
1 2
Shield arc welding
φ8.0 to φ9.5 mm
(5/16 to 3/ 8 inches)
1 4
Quoted from OSHA ( Occupational Safety and Health Standards )
8-6 Duty Cycle
Duty cycle is percentage of 10 minutes that
the unit can weld at a certain current
without overloading. For example, the duty
cycle is 75% at the welding current of 280 / 300 amperes.
2.5 minutes resting. 7.5 minutes welding.
Frequency Duty cycle (%) 100 (%) 75(%)
50Hz 30 260A 280A
60Hz
Current
30 280A 300A
Duty cycle and welding current
Duty cycle and welding current Duty cycle and welding current
Duty cycle and welding current
70
80
90
100
110
0 50 100 150 200 250 300
DC Weld Amperes [A]
D
u
ty
c
y
c
le
[
%
]
50Hz
50Hz 50Hz
50Hz
60Hz 60Hz 60Hz 60Hz