Tweco 186 DC Inverter - Manual (Page 50)

INSTALLATION, OPERATION AND SETUP 3-20 Manual 0-5237
186 AC/DC INVERTER INSTALLATION/SETUP
NOTE
If the TIG torch has a remote TIG torch current control fitted then it will require to be connected to the
8 pin socket. (Refer to section 3.08.2 Remote Control Socket for further information).
E. Fit the welding grade shielding gas regulator/flowmeter to the shielding gas cylinder (refer to Section 3.12)
then connect the shielding gas hose from the regulator/flowmeter outlet to the gas INLET on the rear of the
186 AC/DC Power Source. Connect the gas hose from the TIG torch to the gas OUTLET on the front of the 186
AC/DC Power Source.
!
WARNING
Before connecting the work clamp to the work make sure the mains power supply is switched off.
Secure the welding grade shielding gas cylinder in an upright position by chaining it to a suitable
stationary support to prevent falling or tipping.
8
Negative Welding
Terminal (-)
Work Lead
Positive Welding
Terminal (+)
8 Pin Control Socket
Tig Torch
A-11498_AB
I z
I s
I 2 I e
I 1
MODE
PULSE
PURGE
PROCESS
LIFT TIG
V
SEC
%
Hz
HF TIG
STICK
2T
4T
TRIGGER
BACK FORWARD
AC FREQUENCY
P O R T A B L E W E L D I N G S Y S T E M
WAVE BALANCE
ARC FORCE
Pre Flow Post Flow
Initial Current
Up Slope Down Slope Crater Current
Weld Current
Frequency
f
w
Width
High Current
Low Current
Hot Start
t1 t2
A V
Figure 3-10: Setup for TIG Welding