I am having a problem with a used Square wave TIG 255 that I bought. I thought one you with more experience would have seen this before, or could point me in the right direction.
I believe that the high frequency portion of the welder is working because I am able to hold the electrode at the correct distance from the material, and the arc will start. However, the arc does not have the ability to form a puddle. Welding 1/8 inch mild steel, I set the machine at 160 amps before I start to weld, and as soon as I depress the foot control to start welding the display shows the amps dropping to zero and the volts go between 27 and 30. The arc is so weak the auto lens on my helment turns on and off. This is the settings I used for the 1/8 inch steel:
Welding in: DC-
Weld Mode: TIG 2-step
Current Control: Remote
High Frequency: Start only
Wave Balance: Off
TIG Pulser: On
Amps: 160
Tungsten: 3/32, 2 % Thoriated
Gas: Argon
I also tried to weld some 1/16 aluminun sheet in AC with the following settings and had the same result.
Welding in: AC
Weld Mode: TIG 2-step
Current Control: Remote
High Frequency: Continuos
Wave Balance: Auto
TIG Pulser: On
Amps: 70
Tungsten: 1/16, pure
Gas: Argon
I don't think it is generating the amps to kick in after the high frequency starts, and melt the material.
Any help or advice is greatly appreciated.
Thanks
Old Rod
I believe that the high frequency portion of the welder is working because I am able to hold the electrode at the correct distance from the material, and the arc will start. However, the arc does not have the ability to form a puddle. Welding 1/8 inch mild steel, I set the machine at 160 amps before I start to weld, and as soon as I depress the foot control to start welding the display shows the amps dropping to zero and the volts go between 27 and 30. The arc is so weak the auto lens on my helment turns on and off. This is the settings I used for the 1/8 inch steel:
Welding in: DC-
Weld Mode: TIG 2-step
Current Control: Remote
High Frequency: Start only
Wave Balance: Off
TIG Pulser: On
Amps: 160
Tungsten: 3/32, 2 % Thoriated
Gas: Argon
I also tried to weld some 1/16 aluminun sheet in AC with the following settings and had the same result.
Welding in: AC
Weld Mode: TIG 2-step
Current Control: Remote
High Frequency: Continuos
Wave Balance: Auto
TIG Pulser: On
Amps: 70
Tungsten: 1/16, pure
Gas: Argon
I don't think it is generating the amps to kick in after the high frequency starts, and melt the material.
Any help or advice is greatly appreciated.
Thanks
Old Rod
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