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B-11
OPERATION
B-11
PRECISION TIG 275
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FIGURE B.4
4 Step Trigger Modes
4 Step - Restart Enabled
4 Step - Restart Disabled
Torch
Button
Output
C
urrent
Gas
Pre-Flow Pre-Flow
Post Flow
P
ost Flow
Normal Sequence
Torch
Button
Output
Current
Gas
Pre-Flow
Post Flow
START/CRATER CURRENT
UP-SLOPE
DOWN-SLOPE
(With DIP Switch #3 ON)
(With DIP Switch #3 OFF. As Shipped)
Post Flow
H
old the second trigger
pull for more than 1
second to activate the
restart function. When the
trigger is released
up-slope will occur.
A
ctuate the trigger
holding it less than 1
second, to begin
normal down-slope.
The following two
options are available
during the normal
down-slope period.
A
ctuate the trigger
again, during
down-slope, to
immediately end
down-slope and stop.
O
r actuate and hold the trigger,
during down-slope, to immediately
end down-slope and maintain
crater current. Hold the trigger for
more than 1 second to activate the
restart function. When the trigger
is released up-slope will occur.
Hold the first trigger pull to maintain
the starting current and delay
u
p-slope.
Torch
Button
Output
Current
Gas
4 Step.eps
12-17-07
JRH
Pre-Flow
Post Flow
Post Flow Post Flow
Hold the second trigger
pull for more than 1
second to maintain
crater current before
stopping.
Actuate the trigger
holding it less than 1
second, to begin
normal down-slope.
The following two
options are available
during the normal
down-slope period.
Actuate the trigger a third
time, during down-slope, to
immediately end down-slope
and stop.
Or actuate the trigger a third time,
during down-slope, to immediately
end down-slope. Hold the third trigger
pull to maintain crater current.