10
Remark & Sign of Illustration
ground connection
3ph static frequency changer—transformer—rectifier
MIG/MAG
。
MMA
。
3ph, rated frequency 50Hz
，
operating frequency 60Hz
。
X
：
duty cycle.
I1max.A
：
rated max input current.
I1eff...A
：
max effective input current.
I2
：
rated welding current.
U0
：
rated no loading voltage
U1
：
rated input voltage.
U2
：
loading voltage
...V
：
unit of voltage
...A
：
unit of current
...%
：
unit of duty cycle
...A/...V to ...A/...V
：
output range
。
Min or max rated welding current and relevant loadingvoltage.
IP21S
：
enclosure protection class. IP is code letter
（
International Protection
）。
2 refer to prevent
someone′s finger to approach risk part
；
prevent no less than12.5mm solid to into the shell
。
1 refer to
prevent to drip from vertical direction
；
Vertical drop of water should be no harmful effects
。
S refer to
when movable part of equipment is static, the waterproof test can be processed.
H
：
H Insulation grade
。
FUNCTION DESCRIPTION
manual welding
This mode is equivalent to the function of the dc arc welding machine, the manual welding electrode
welding function. This mode is equivalent to the function of the dc arc welding machine, the manual
welding electrode welding function.
DC argon arc welding
Widely used in a variety of carbon steel, alloy steel, stainless steel, copper and copper alloys, nickel and
nickel alloy welding, especially suitable for thin plate welding (3 mm or less) and plate (> 3 mm) in the
opening of one side welding groove butt weld, double-sided molding, backing welding process,
especially suitable for argon arc welding backing, dc manual arc welding more than cover the welding
process.
DC pulsed argon arc welding
Is suitable for thin plate welding, and is suitable for any position of continuous welding, do not need to
adjust the welding specification for welding position change.In both to get a large penetration, and
expect to reduce the welding heat affected zone, pulse welding current, the current base value, the
~
3
Summary of Contents for PROTIG -PIII Series
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