Everlast Typhoon 500 Operator's Manual page 57

Component Identification and Explanation
Explanation of TIG Parameters, Functions and Welding Terms
cylinder. The regulator should never be left turned on. Leaks can and do
develop over time or suddenly. Gas solenoids can fail to close properly.
Whenever a regulator is not in use, the pressure should be relieved so that
the diaphragm/spring will not prematurely fail or lose accuracy.
CAUTION: Always open the regulator slowly, while standing to the side so
that if it were to fail parts will be ejected away from you. Never stand over a
regulator while opening.
Remote. Remote refers to the ability to start the arc and control the weld
cycle at a distance. High Frequency Start must be used with a remote to
operate. Lift Start can also be used with a Remote. A remote can be a foot
pedal, torch switch, torch mounted slider or hybrid Amp-trol torch. All of
them are used to start and end the arc as well as control other parts of the
Can I Use a Remote Wireless Pedal?
The Typhoon series is especially suited for use with the NOVA wireless
pedal. It includes an outlet on the rear for the transmitter power. The
metal case is suitable for attaching the magnetized transmitter as well. The
rear outlet should only be used for powering the NOVA wireless pedal.
Even though it appears to be a 15A outlet this is a low amp 240V/120V
outlet designed for use with only this model pedal.
DONGLE ADAPTER
DONGLE POWER PLUG
Cooler use
Wireless Pedal
DONGLE/RECEIVER
120/240V
(MAGNETIC)
weld cycle to varying extents. The unit has multiple Remote settings to
choose from. 2T/2TS/4T/4TS settings all must be used with a remote
switch. Pedal mode is reserved for use with a Foot pedal or slider Amp
control mounted on the torch handle. The hybrid torch switch/amp-trol
must be used with the special 2T+ Amp and 4T+ Amp controls (formerly
2T+Finger/4T+Finger).
Pedal mode is the most straight forward. Operation is quite simple. The
maximum amperage is set on the panel. Then the foot pedal is used to
start and stop the arc as well as vary the amperage from the minimum
welding setting, up to the maximum welding setting selected on the panel.
When used in pedal mode, many weld cycle parameters will not be availa-
ble for adjustment since the pedal itself controls those functions manually.
Shielding Gas. Shielding Gas is necessary while TIG welding. The shield-
ing gas used for the TIG process is 100% Argon. Shielding gas protects
the weld from oxidation by the atmosphere while the weld puddle is still
molten. Gas flow rates are controlled by the supplied regulator. Too little
gas flow will cause porosity, heavy scale and or oxidation. Too much gas
flow is wasteful and can also create a turbulent flow, which can pull the
atmosphere into the weld, creating oxidation. See suggested flow rates.
Start Amps. This is the initial Amperage of the weld in TIG mode. This is
the starting point, at which the arc initiates. The Start Amps are sometimes
confused with the surge amperage required to start the arc. These are
separate items. The surge amperage (which all TIG welders have, whether
it's published on the screen or not) is a micro surge of Amperage required
to establish the arc lasting only milliseconds. Start Amperage is the actual
Amps at which the arc will establish itself as it stabilizes. It becomes partic-
ularly effective when using the torch switch for welding aluminum by al-
lowing a more rapid wet in at the beginning of the weld. For larger diame-
ter tungsten, the Start Amps can be increased to provide a more stable low
end start with the foot pedal. The Tungsten size function dictates the mini-
mum Starting Amperage so that the best start can be obtained. However, it
is not the absolute lowest limit. To obtain complete control over the Start
Amp parameter, set the Tungsten function to "Manual." Start Amps may be
set higher than the Welding Amperage, but more rapid wear of the Tung-
sten may result.
Spot Weld Timer/ Fast-Tack. The Spot weld timer simply is an Arc-On
timer for TIG welding calibrated in tenths of a second. The use is intended
to help the user to create better tack welds with improved consistency in
size and penetration. Once the torch switch trigger is activated, the arc will
stay turned on for the amount of time selected. After the time has expired,
the welding arc will shut down. The Spot Timer can be used in both AC
and DC modes. However, the Fast-Tack function (also referred to as "Cold
-Weld" function) is only intended for DC use. It is designed for a shorter
duration and is usually combined with an intense high current flash that
will join thin gauge metals together. The Fast-Tack function adjusts in
milliseconds rather than tenths of a second for a rapid blast of fusing heat.
Normally Fast-Tack is used without filler metal. Spot may or may not be
used with filler metal. Both Spot and Fast-Tack functions can only be used
57