Tweco 130i Transarc Operating Manual - Manual (Page 27)

TRANSARC 130i
Manual 0-5283 3-9 INSTALLATION, OPERATION AND SETUP
Socket Pin Function
1 Not connected
2 Trigger Switch Input
3 Trigger Switch Input
4 Not connected
5 5k ohm (maximum) connection to 5k ohm remote control potentiometer.
6 Zero ohm (minimum) connection to 5k ohm remote control potentiometer.
7 Wiper arm connection to 5k ohm remote control Amps GTAW (TIG) mode potentiometer.
8 Not connected.
Table 3-1
8. Shielding Gas Outlet
The Shielding Gas Outlet located on the front panel is a 5/8-18 UNF female gas fitting and is utilised for the
connection of a suitable TIG Torch.
9. Trigger Mode Control
The trigger mode control is used to switch the functionality of the of the torch trigger between 2T (normal)
and 4T (latch mode)
Note that pressing the Trigger Mode Button while turning the mains power on will perform a factory reset.
2T Normal Mode
In this mode, the torch trigger must remain depressed for the welding output to be active. Press and hold
the torch trigger to activate the power source (weld). Release the torch trigger switch to cease welding.
A-11724
4T Latch Mode
This mode of welding is mainly used for long welding runs to reduce operator fatigue. In this mode the
operator can press and release the torch trigger and the output will remain active. To deactivate the power
source, the trigger switch must again be depressed and released, thus eliminating the need for the operator
to hold the torch trigger.
Note that when operating in GTAW (TIG mode), the power source will remain activated until the selected
downslope time has elapsed.