Firepower TIG 200 AC/DC, Operating Manual

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INSTALLATION FIREPOWER TIG 200 AC/DC
Manual 0-5370 3-15
Installation
Maximum Penetration and
reduced cleaning
Balanced with 50% penetration
and 50% cleaning
Maximum Cleaning and
reduced penetration
10% 50% 65%
90% 50% 35%
(+) (+) (+)
(-) (-) (-)
Wave Balance = 50% Wave Balance = 10% Wave Balance = 65%
A-11223
Table 3-5: AC TIG Wave Balance
3.11 SHORT CIRCUIT PROTECTION WHILE WELDING
To prolong the useful life of a TIG tungsten electrode and eliminate tungsten contamination to welding point, the
200 AC/DC incorporates special circuitry.
In all TIG processes, after the welding arc has established, if the tungsten electrode touches the work the current
defaults to 33 amps. If the short exists for more than 1-2 seconds, the output is turned off.
In STICK mode, if the electrode touches the work for more than two seconds the welding current is reduced to
0 Amps.
3.12 FIREPOWER FLOWMETER/REGULATOR
Pressure Flowmeter/Regulator (Figure 3-7) attached to the cylinder valve reduce high cylinder pressures to suitable
low working pressures for welding, cutting, and other applications.
LOW PRESSURE
GAUGE (DELIVERY)
HIGH PRESSURE
GAUGE (SUPPLY)
INLET
CONNECTION
OUTLET
CONNECTION
PRESSURE
ADJUSTING
SCREW
A-12435
Figure 3-7: Firepower CS Flowmeter/Regulator
!
WARNING
Use the Flowmeter/Regulator for the gas and pressure for which it is designed. NEVER alter a Flowmeter/
Regulator for use with any other gas.