Tweco 185TSW DC CC - Manual (Page 26)

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4.03 Weld Parameter Descriptions for Pro-Wave 185TSW
Figure 5 Pro-Wave 185TSW Front Panel with Parameter Description
Parameter Description
PRE-FLOW
This parameter operates in TIG modes only and is used to provide gas to
the weld zone prior to striking the arc, once the torch trigger switch has
been pressed. This control is used to dramatically reduce weld porosity at
the start of a weld.
HOT START
This parameter operates in all weld modes except Lift TIG mode and is
used to heat up the weld zone in TIG modes or improve the start
characteristics for stick electrodes. e.g. low hydrogen electrodes. It sets
the peak start current on top of the BASE (WELD) current.
e.g. HOT START current = 130 amps when BASE (WELD) = 100 amps &
HOT START = 30 amps
INITIAL CUR. This parameter operates in SLOPE or REPEAT (4T) TIG modes only and
is used to set the start current for TIG. The Start Current remains on until
the torch trigger switch is released after it has been depressed.
UP SLOPE This parameter operates in TIG modes only and is used to set the time for
the weld current to ramp up, after the torch trigger switch has been
pressed then released, from INITIAL CUR to PEAK or BASE current
PEAK CUR. This parameter sets the PEAK weld current when in PULSE mode
WELD This parameter sets the TIG WELD current in STD, SLOPE, REPEAT and
SPOT modes when PULSE is off. This parameter also sets the STICK
weld current.
BASE
(Background
Current)
This parameter sets the Background current when in Pulse TIG mode.