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Front Panel Operation
With welders in the digital series, thanks to a special electronic card it is possible to adjust externally
the main welding parameters. The main purpose of these units is to make adjustment of these
parameters very easy.
The microprocessor control handles the functions of the p.c.board that are viewed by means of LED's
while a digital display shows the parameters set and welding current. Units may be used either with the
standard torch (supplied with them) or with the Spool Gun.
Welder Controls
1. Main ON/OFF switch (green):
Lights up when you switch ON the welder on.
2. Welding voltage adjustment knob
3. Auxiliary circuit protection fuse
1 Amp fuse: Do not replace it with different
current fuses.
4. Wire feed adjustment knob
To increase the wire speed, turn the potentiometer
clockwise; to decrease the wire speed, turn it counter-
clockwise. The same procedure decreases the
values on the welding parameters. Turn knob slowly.
5. Spot welding time regulation knob
MIN. 0.4 seconds - MAX. 10 seconds
6. Welding "MODE" selector key
Use these keys to select the following
types of welding:
- 2T: 2 time welding = manual
- 4T: 4 time welding = automatic
- Automatic spot welding with timer
7. B.B.T. ( burn back time)
When releasing the torch trigger the machine will
work for a very short time. This function avoids burning of wire and consequent wire sticking to
the contact tip. By turning the B.B.T. potentiometer clockwise/counterclockwise with a screw driver,
the wire which is exiting from the torch at the end of the welding will become shorter or longer.
8. SLOPE
Turning trimmer with a screwdriver to adjust the time necessary for the wire feed motor to
reach the speed that you set through the potentiometer.
MIN. slope 0.25 seconds - MAX. slope 1.6 seconds
9. Overheating indicator (yellow)
This LED blinks when unit is overheating. It will light up when thermostatic protection shut
down the machine and will cease blinking only after the machine has cooled sufficiently to
continue welding.
10. Spool gun torch green LED: lights up when the spool gun torch is connected.
11. Display
Allows operator to view the real time weld current. After welding the display will show the
final welding current value for a maximum of 3 seconds.
12. Torch connection
13. 7 poles connection for Spool Gun (optional)
16
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11
8
CAT# 319
10
9
7
5
370
4
6
295
450
3
7
215
525
2
8
140
600
1
9
60
680
0
10
0
750
4
6
5
1
19.1
20.4
21.9
2
45.0
23.6
39.1
25.7
3
34.6
28.1
31.0
13
12
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