Product Description, Recommended Processes

B-2	OPERATION	B-2

PRODUCT DESCRIPTION

The PRECISION TIG 225 is a member of our field acclaimed Precision TIG family of industrial arc welding power sources. Premium features include:

1.Precise constant current output.

2.Full range square wave AC/DC TIG (GTAW) welding.

3.Enhanced version of the patented Micro-Start II™ Technology for its lower Minimum(5 amps) to higher Maximum (230 amps) output control range.

4.Built-in high frequency stabilization for DC TIG starting and continuous AC TIG welding.

5.AC/DC Stick (SMAW capability.) A new undercarriage (with gas bottle rack) is available for field installation, or is included with an available Ready-Pak TIG Welding Package. The Precision TIG patented convenient built-in storage provisions for welding components and cable management.

The PRECISION TIG 225 also provides advanced features such as:

•Digital Meter

•Presettable control, adjustable Auto Balance™

•Fan As Needed (F.A.N.)

•Timers for fixed Preflow and variable Postflow shielding gas.

•Built-in, easy to set single knob Pulse TIG control with a "blinking" light to indicate the pulse frequency setting.

•Auto-Sense remote control selection.

•Tool-less Twist-Mate electrode cable connection.

•Built-in work clamp cable permanently attached.

Four models are available for 60Hz. with Domestic and Canadian input voltages, as well as an International model with 50/60Hz voltages.

An Auxiliary 115vac Receptacle with Circuit Breaker are included on the back panel of the Precision TIG 225 models. The Canadian (K2533-2) and International (K2534-1) mod- els are rated 6 amps, while the 208/230/1/60 models (K2533-1 and K2535-1/-2) are rated 20 amps (for use with Lincolnʼs 115v SP and Power Mig models).

RECOMMENDED PROCESSES AND EQUIP- MENT

RECOMMENDED PROCESSES

The PRECISION TIG 225 is recommended for the TIG (GTAW) and Stick (SMAW) welding processes within its out- put capacity range of 5 amps DC or AC to 225 amps AC/DC. It is compatible with most Magnum TIG acces- sories, as well as many industry standard items, such as TIG torches (adapted for Twist-Mate), hoses, and water coolers.

PROCESS LIMITATIONS

The Precision TIG machines are not recommended for arc gouging due to its limited output capacity, and are also not recommended for pipe thawing.

RECOMMENDED EQUIPMENT/INTERFACE (See Installed Options in Accessories Section for more details)

The PRECISION TIG 225 will be available as a basic Machine (Only) and in two Factory-Configured Welding Packages:

1.Machine(Only) (K2345-1)

2.Ready-Pak (K2347-1)

3.Ready-Pak w/Cart (K2347-2)

Basic module will also be available as with Domestic, Canadian and International input voltages for user configu- ration, with optional accessories.

Select Machine	208/230/1/60 Machine with NEMA 6-50P
	Plug Cable and Receptacle (K2533-1)
	460/575/1/60 Machine only with cable (K2533-2)
	380/400/415/1/50/60 Machine only
	with cable (K2534-1)
Torch Starter Kit	Air Cooled System:	Water Cooled System:
(Select one)	TIG-Mate	TIG-Mate 20
	Torch Starter Kit*	Torch Starter Kit*
Water Cooler	Not Applicable	115V 50/60Hz
		Cool-Arc 40*
Under-Storage	K2348-(*)
Cart (Optional )
Optional Remote	Arc Start Switch*
Trigger Device	Foot Amptrol*
(Select one)	Start Pedal Foot Amptrol*
	Hand Amptrol*

*For “Part Numbers” or “K Numbers” see Accessories Section.

EQUIPMENT LIMITATIONS

The Precision TIG machines are protected from over loads beyond the output ratings and duty cycles, per the Specifications in the Installation Section, with Thermostat pro- tection of the output power coils and rectifiers.

The PRECISION TIG 225 machine uses Twist-Mate output ter- minals, therefore stud connection adapters (such as LECO. S19257-series) cannot be used for torch connection.

If a PRECISION TIG 225 is powered from an engine generator which doesnʼt have sufficient capacity, the AC Balance control and the Output control will not provide full range of control.

WELDING CAPABILITY(Duty Cycle)

The PRECISION TIG 225 is rated at 225 amps, 29 volts, at 10% duty cycle on a ten minute basis. It is capable of higher duty cycles at lower output currents. See rated output graph, on specification sheet located in the Installation Section. If the duty cycle is exceeded, a thermal protector will shut off the output until the machine cools.

OPERATION