15
SPARK IGNITION - LAMP (9) IS ON
The welding process is initiated by pressing a control button on the grip.
When the button is pressed the gas valve is opened. Releasing the button
starts the ionizer - spark-over between an electrode and a workpiece
should initiate ignition of the arc. If ignition of the arc does not occur within
2.5s ionizer is turned off and ignition process must be repeated.
9) After the welding is completed, the rectifier should be left connected to the
mains for some time (approx. 3 minutes). This is recommended for
cooling down the heated components.
10) If during welding, the rectifier has been overloaded by exceeding the
permitted duty cycle of 35% or 60% at currents given in Table 1, the
temperature limiter can operate. This cuts-off the welding current and
lights up the indicator (8) (Fig. 1). In such case wait until this indicator
turns off, and then you can continue the welding.
6.2.3. TIG WELDING WITH ALTERNATING CURRENT (AC)
1) Connect the welding cable with the electric clamp (connected to the
output terminal (1) Fig. 2) to the work to be welded.
2) Fit an appropriate tungsten electrode in the TIG welding torch -
recommended electrode WC20 (grey) or pure tungsten (green).
3) Set the power switch in the position ON (ZAŁ).
4) Using button (5) (Fig. 1) select one of the two modes of TIG welding - 2T
or 4T.
5) Pressing button (6) (Fig. 1) select AC.
6) Using the knob (2) (Fig. 1) select the diameter of the electrode E1.6, E2.4
or E3.2.
7) Depending on the requirements set the appropriate values of parameters.
Selection of the parameter is done by pressing P button (3), currently
selected parameter is highlighted with a red or green light, the value of the
parameter is adjusted using the knob (2). The parameters relating to the
alternating current are green illuminated only.
8) Set the proper gas (argon) flow using a pressure regulator on the gas
cylinder.
9) Select the method of arc ignition using HF button (4).
Electrode
Welding current [A]
Gas nozzle
Gas flow
WC20
Ø
[mm]
min
max
No.
Ø
[mm]
Argon [l / min]
1.6
15
90
4/5/6
6.5/8.0/9.5
6...7
2.4
20
150
6/7
9.5/11
7...8
3.2
30
200
7/8/10
11.0/12.5/16
8...10
Содержание 150AC
Страница 18: ...18 Figure 3 General electric diagram...
