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B-11
OPERATION
B-11
SETUP GUIDELINES FOR TIG WELDING
WITH AN AMPTROL
Both the Hand and Foot AMPTROLS work in a similar
manner. They are meant to be used for remote current
control for TIG welding using the machineʼs 2-Step
trigger mode (See Item 12).
The Amptrol is capable of controlling the output of the
Precision TIG over the range between the level preset
by the Minimum Output control when the Amptrol is at
its inactivated state, and the level preset by the
Maximum Output control when the Amptrol is at fully-
activated state.
It is important to note that even with the Precision TIGʼs
new MicroStart
TM
Technology, some tungstens may be
difficult to start at the low (2 amps) minimum rating of
the machine. Rather than guessing where to depress
the Amptrol to start the arc reliably, the Minimum
Output control allows presetting the exact level, so
reliable starts, as well as minimum crater-fill levels, can
be consistently obtained at the minimum Amptrol (inac-
tivated ) state. FIGURE B.6 shows Precision TIG setup
for TIG welding with an Amptrol.
PRECISION TIG 275
TIG WELD CYCLE CHART
SEE ITEM 12
SEE ITEM 12
SEE ITEM 7a
SEE ITEM 12
SEE ITEM 12
SEE ITEM 7
SEE ITEM 9
SEE ITEM 17
SEE ITEM 16
SEE ITEM 15
SEE ITEM 15
SEE ITEM 14
SEE ITEM 7a
SEE ITEM 12
SEE ITEM 7a
SEE ITEM 7
SEE ITEM 6
SEE ITEM 6 & 7
SEE ITEM 12 & TIG
Welding Features