LORCH MicorTIG 200 DC BasicPlus Manual De Instrucciones página 36

the welding table, the workpiece and
the machine.
Switch on the system
 Press the On/Off button 28 for 2 sec. to switch
on the system.
 Press button 27 to select the TIG 2-stroke or
4-stroke operating mode.
9 The TIG (LED 24), HF (LED 25) and 2-stroke or
4-stroke (LED 22) symbol lights up.
 Press button 27 for 2 sec. to switch the "Slopes"
function on or off.
 Use control knob 19 to set the desired welding
current.
VIII
Arc ignition
 Open the valve 56 on the TIG welding torch.
 Briefly touch the workpiece with the tip of
Â
the electrode at the point to be welded.
 Lift the electrode a little.
Â
9 The arc burns between the workpiece and the
electrode.
Pulses
 Press button 26 until the Pulses symbol (LED
23) lights up.
 Call up the secondary parameters (see "16 Sec-
ondary parameters" on Page 35).
 Select the "Secondary energy" secondary pa-
rameter (2.E).
 Set the desired secondary current value by us-
ing control knob 19. The setting value is based
on the main current I
 Select the "Pulse frequency" secondary param-
eter (PuF).
 Set the desired pulse frequency by using con-
trol knob 19.
 Select the "Pulse cycle duty" secondary param-
eter (PuB).
 Set the desired pulse duty cycle by us-
ing control knob 19. The setting value
specifies share in % of the main current I
Example: 60% corresponds to a mix of 60%
main current I and 40% secondary energy I
1
 Leave the secondary parameter menu.
- 34 -
in %.
1
909.4039.9-03
‰ The calculated average current value is shown
on Display 39 during the welding process.
Slopes (start and end crater filling pro-
gramme)
When Slopes is activated, the start and
i
crater filling programme with the asso-
ciated parameters becomes available.
 Call-up the secondary parameters ("16 Second-
ary parameters" on Page 35).
 Select the relevant secondary parameter and
set its value as preferred.
‰ The "Start energy" (StE) and "Crater fill energy"
(CFE) are based on % of the main current
 Leave the secondary parameter menu.
.
1
.
2
Welding method
04.19