OPERATION
•115 Volt receptacle with 15 amp circuit breaker.
•Excellent arc starting and stability up through 400 amps.
•High resistance to AC arc rectification.
•No tungsten spitting within current range of elec- trode.
•Compact size, requires only a 22.25 in x 26 in (565 mm 660 mm) footprint.
•Strain relief holes in base for welding cables, gas and water hoses and control cables.
WELDING CAPABILITY
The Square Wave TIG 355 is NEMA Class II (40) Power Source rated 350 amps at 34 volts, 40% duty cycle. The duty cycle is based upon a 10 minute time period. (For 40% duty cycle, it is 4 minutes on and 6 minutes off.) The overload capacity is 375 amps at 35 volts, 30% duty cycle.
The “Lincoln Plus” rating of 300 amps at 40 volts pro- vides additional voltage to overcome voltage drops in long cables when stick welding at high currents.
•Easy access for input connections. Connections are simple strip and clamp of input wires (no lugs required).
•Low fan noise at idle.
•Modular construction for easy servicing.
•Unused controls are automatically locked out to simplify setup. Examples: the AC Wave Balance control has no effect in DC; the High Frequency and gas and water valves do not operate in Stick mode; TIG Pulser is locked out in the Stick mode.
•Recessed panels protect controls, output terminals, gas and water fittings.
•Large safety margins and protective circuits protect rectifiers from transient voltages and high currents.
•Line voltage compensated.
•Thermostatically protected.
•Electronic over current protection.
LIMITATIONS
•The Square Wave TIG 355 is not recommended for arc gouging. The machine's output capacity is too limited.
•The Square Wave TIG 355 is not recommended for AC TIG welding with high concentrations of helium shielding gas. Starting problems and arc rectifica- tion may occur.
•The Square Wave TIG 355 is not recommended for pipe thawing.
SQUARE WAVE TIG 355
