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high-frequency arc, can guarantee the arc starting
and stable welding. Combine with various protection
functions make welding machine quality is reliable.
Welding machine get 220 ~ 240V AC power
through wave form switch SW1, rectify by BD1 sin-
gle-phase rectifier, the capacitor C1 ~ C4 filter-
ing into direct current (dc), via the IGBT (Q1, Q2,
Q3 and Q4) composed of bridge type inverter ac
inverter into 33 KHz AC POWER, then through inter-
mediate frequency transformer T1 transformer, after
fast recovery D1-3, D4-6 rectifier, offering the stable
DC power. In the output at the same time, via high
pressure of coupling transformer T2 arc with high fre-
quency pulse coupled to the output of the negative
side, for non-contact start arc conveniently.
Main structure of the welders
TIG 200S PULSE series inverter dc pulse argon arc
welding machine used to move around freely enclo-
sure structure: the upper part on the front panel is
equipped with digital displayer, current welding
mode selection button, over voltage indicator, over-
heat lights, parameter adjustment of the indica-
tor knob; The lower part is equipped with "+" quick
socket output current, output current "-" quick socket,
welding gun control cable interface, as well as the
welding torch gas interface; Rear panel is equipped
with cooling fan, power input lead, and the power
switch, and argon gas input interface; At the bottom
of the box body is equipped with four feet and the
handle.
Main technical specifications of the welder
No special advice on above parameter. The name-
plate parameter on the welder is prior.
Items
Rated input voltage
Power frequency
Rated input capacity
Rated input current
Output no load voltage
Rated working voltage
Stick welding current
Welding current
Base value current
Current rise time
Current drop time
Pulse frequency
Duty cycle
22
Unit
TIG 200S PULSE
V
230
Hz
50/60
KVA
8.7
A
38
V
66
V
18
A
20 ∼ 200
A
5 ∼ 200
A
5 ∼ 200
s
0 ∼ 15
s
0 ∼ 25
Hz
0.5 ∼ 200
%
15 ∼ 85
Gas pre-flow time
Gas post flow time
Rated duty cycle
Cooling type
Effiency
Power factor
Insulation degree
Cover protection degree
Weight
Dimension l×w×h
Standards of the welders
TIG 200S PULSE series Inverter TIG Welder accord-
ing to the following standaEN60974-1.
High frequency arc pilot method
instruction
This kind of arc pilot method is absolutely different
with the traditional arc pilot method. It does not need
to connect Tungsten electrode with the work piece. It
use high voltage & high frequency pulse to make ion-
ization on the air, transmitting the electricity by the
air after ionization, and form the arc.
Remark of Illustration
Welder earthing sign
TIG Welding
Drug skin electrode stick arc welding
Single AC power supply
inverter --- transformer --- rectifier
DC current
＋: + Electrode
－: - Electrode
X: Duty Cycle
I1max...A: Rated max input current
I1eff...A: Max usable input current
I2: Rated welding current
U0 ...V: Rated without load voltage
U1 ...V: Rated input voltage
U2: Rated load voltage
∼50/60Hz: AC current, rated frequency 50Hz, usa-
ble frequency 60Hz
...V: Rated load voltage value
...A: Rated welding current value
s
0 ∼ 5
s
0 ∼ 60
%
20
Wind Cooling
η
≥ 85%
Cosφ
0.73
F
IP
IP21S
kg
11
mm
556x250x407
Single stillness frequency
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