Miller Gold Seal 420, Руководство пользователя

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OM-174 470 Page 1
SECTION 1 – SPECIFICATIONS
Table 1-1. Welding Power Source
Specifications Description
Type Of Output Direct Current/Constant Voltage (DC/CV)
Rated Weld Output 90 Amperes, 18 Volts DC, 20% Duty Cycle
Type Of Input Power Single-Phase; 60 Hz; At 115 Volts AC
Input Amperes At Rated Output 20 A At 115 V
KVA/KW Used At Rated Output 3 kVA/2.2 kW
Max. Open-Circuit Voltage 30 Volts DC
Control Circuit Voltage At Gun 24 Volts DC
Welding Processes Gas Metal Arc (GMAW) And Flux Cored Arc Welding (FCAW)
Calculated Speed Range At No Load 283 To 716 ipm (7.1 To 17.9 mpm)
Wire Diameter Range .023 To .035 in (0.58 To 0.89 mm)
Overall Dimensions Length: 16-1/2 in (419 mm); Width: 9-1/2 in (241 mm); Height: 17 in (432 mm)
Weight Net: 73 lb (33 kg); Ship: 80 lb (36 kg)
Welding Gun
Rated Output (Air-Cooled) 160 Amperes At 60% Duty Cycle Using CO
2
Shielding Gas
Cable Length 10 ft (3 m)
1-1. Volt-Ampere Curve And Duty Cycle Chart
CAUTION
USING GUN BEYOND DUTY CYCLE RATING can damage gun.
•
Do not use gun beyond rated amperage when using CO
2
shielding gas.
•
Use gun at 30% duty cycle when using mixed shielding gas.
wfwarn8.1 10/91
ssb1.1 10/91 – SB-124 646-A / sb1.3 10/91 – SB-124 655-A
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves
of other settings fall between the
curves shown.
Duty cycle is how long the unit can
operate within a ten minute period
without causing overheating or
damage.
This unit is rated at 20% duty cycle
allowing welding 2 minutes out of
every 10 minutes.
This gun is rated at 60% duty cycle
when using CO
2
shielding gas and
30% when using mixed shielding
gas.
Figure 1-1. Volt-Ampere Curve And Duty Cycle Chart