gala gar Smart 400 TIG Pulse Manuel Technique D'instructions page 28

3.4 TIG OPERATION STEPS
 Switch the welding mode switch on the front panel of the welding machine to "TIG" or "Pulse" position.

Turn on the power switch of the welding machine. Then, the cooling fan will work, and the current meter will
display the preset welding current.
 Turn the gas-check/welding switch to "gas-check" position, and adjust the gas flow control knob on the gas
regulator to get the desired gas flow. After that, turn the gas-check/welding switch to "welding" position.
 Select the proper operation mode via the 2T/repeating/4T switch according to the welding requirements.

Adjust the welding parameters to the appropriate values according to the welding requirements.

After the above steps are finished, welding can be carried out. The current meter will display the practical
welding current.
3.4.1 WELDING PARAMETERS FOR TIG WELDING
Adjustable
parameter
Pre-flow time
Post-flow time
Initial current
Up slope time
Welding current
Pulse duration ratio
Base current
Pulse frequency
Downslope time
Pilot arc current
3.4.2 REFERENCE TABLE FOR WELDING PROCESS IN TIG
Electrode diameter
(mm)
1~2
2~4
Smart 400 TIG Pulse
Adjusting
range
It is suggested to adjust it to 1s or an appropriate value according to
0~15s
welding requirements.
It is suggested to adjust it to 1s or an appropriate value according to
0~15s
welding requirements.
It is suggested to adjust it to a lower value or an appropriate value
5~100A
according to welding requirements.
0~10s To adjust the up slope time.
To adjust the welding current in DC TIG and to adjust the peak current in
5~400A
pulse TIG.
To adjust the percentage the peak current holding in a period in pulse TIG.
10~90%
Please set it properly according to practical welding requirements.
5~400A To adjust the base current in pulse TIG.
To facilitate the users, the first half of the knob is low frequency range
0.5~200Hz within 0.2~10Hz, and the second half of the knob is high frequency range
within 10~200Hz.
0~10s To adjust the downslope time.
It is suggested to adjust it to a lower value or an appropriate value
5~400A
according to welding requirements.
Plate thickness (mm)
1~3
3~6
Description
Maximum current (A)
50
50~80
80~120
121~160
161~200
201~300
Maximum gas flow (L/min)
5
6
7
8
9
10
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