Snap-On TIG 150i, Руководство пользователя

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A - Procedure selector switch
(Left-hand “down arrow” Key
This push-button selects the welding procedure (MMA or
TIG).When selected, one of the following LEDs lights:
B C o r D
E Mode key. (Right-hand “down” arrow key.)
When selected, one of the following LEDs lights: F, G,
H, L, M, N TIG mode there will always be two LEDs lit:
one indicating HF or striking start mode, the other
continuous or pulse mode in 2 or 4 stage.
F - LED. TIG welding with arc started without high
frequency.
To light the arc, press the torch trigger and touch the tungsten
electrode to the work piece, then lift it. This move must be
quick and decisive (0.3 sec.). Use this process when high
frequency is not permitted
.
L – LED TIG welding with arc started with high
frequency.
To light the arc, press the torch trigger: a high voltage
frequency pilot spark will light the arc.
G - LED. Continuous 2-stage TIG welding
(manual).
When the torch trigger is pressed, the current begins. When
the trigger is released, returns to zero. In this position, you
may connect the optional pedal control accessory
(TIGINVFP).
H - LED. Continuous 4-stage TIG welding
(automatic).
This program differs from the previous one in that the arc is
both started and shut off by pressing and releasing the torch
trigger.
M - LED. Pulsed 2-stage TIG welding
(manual).
When the torch trigger is pressed, the current begins. When
the trigger is released, returns to zero. In this position, you
may connect the optional pedal control accessory
(TIGINVFP).
N - LED. Pulsed 4-stage TIG welding
(Automatic)
This program differs from the previous one in that the arc is
both started and shut off by pressing and releasing the torch
trigger.
The Pulsed welding feature varies the weld current from the
main welding current (Peak Amperage – high heat) and the
second level of welding or base current (Background
Amperage – low heat) levels. The TIG150i has two (2)
different weld settings for the pulse features 2-stage TIG
welding (manual)
M – LED or 4-stage TIG welding
(automatic) N - LED.
The Pulse frequency is adjustable from .16 to 250 pulses
per second by selecting the mode U and setting the value
with the knob AA . The duration of total time “on” between
“High heat” and “Low heat” are equal.
“LED T ” – Main welding current (Peak Amperage – high
heat)
This value is usually set somewhat higher than it would
be set for a non-pulsed weld.
“LED V ” – Second level of welding or base current
(Background Amperage – low heat)
This of course would be set lower than Main welding
current. This value cannot be higher than the Main welding
current. Once the base current
V is set (a percentage in
respect to the main current is established), so this value will
change automatically when increasing or decreasing the
Main current
T .
“LED U ” – Pulse frequency (Pulses per Second .
16 – 250 HZ) Is the number of times per second that the
welding current achieves main welding current (Peak
Amperage – high heat).
Some of the advantages:
•
Good Penetration with less heat input to material
“burn through”.
•
Less distortion.
•
Good control of the pool when welding out of
position.
•
Ease of welding thin materials.
•
Ease of welding materials of dissimilar thickness.
•
Helps weld training.
•
Smaller bead profile.
•
Smaller heat-affected zone.
DESCRIPTION OF EQUIPMENT cont’d