Arcoweld ArcoMiG LCD 250C, Руководство оператора

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MAINTENANCE &TROUBLESHOOTING
25
output pulse function is turned on, the slope down current is pulsed;

t4
～
t5
：
Down slope time, adjustment rang of down slope time: 0~10.0S;

t5
～
t6
：
Crater current holds time; adjustment range of crater current: 5~250A (315A);

t6
：
Loosen the torch switch, stop arc, and argon keeps flowing;

t6
～
t7
：
Post flow time, adjustment range of post flow time: 0.1
～
10.0S;

t7
：
Electromagnetic valve is closed and argon stops flowing. Welding is finished.
§4.3.2 TIG welding (2T operation)
Pulsed TIG short welding
（
2T
）：
t( s)
0
I( A)
Loosen the
welding gun
switch
Press and hold the
welding gun switch
t1 t5
Striking
success
Stop arc
t3 t4
Base current setting
value
t2
Welding current (peak
current) setting value
5A
Introduction
：

0
：
Press and hold the gun switch, Electromagnetic gas valve is turned on. The
shielding gas starts to flow;

0
～
t1
：
Pre flow time, adjustment range of pre flow time :0.1~1.0S;

t1
～
t2
：
Striking success, the output current slopes up to the setting current from minimum
current (5A); if the output pulse function is turned on, the slope up current is pulsed;

t2
～
t3
：
During the whole welding process, the gun switch is pressed and held without
releasing;
Note: If the output pulse function is turned on, the output current is pulsed. If the output
pulse function is turned off, the output current is DC current;

t3
：
Loosen the gun switch, the output current slopes down; if the output pulse function
is turned on, the slope down current is pulsed;