Prime Tech POWER MTS175S, Operation Instructions Manual

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The torch trig-ger function is designed to operate for both MIG and TIG functions. To operate in 2T
mode, the trigger on either the MIG or TIG torch should be simply held down. The 4T function operates as a
torch “latch” in MIG mode that locks the MIG torch on without needing to hold the trigger. To operate 4T in
the MIG mode, simply press the torch trigger and hold it down until the arc starts. To lock it on, release the
trigger and weld without hold-ing the trigger down. To stop, the trigger must be pressed again, and then
released after 1-2 seconds. The 4T function in TIG mode acts sim-ilarly, but in conjunction with the down
slope timer. As the torch trigger is pressed for the second time, the trigger should be held in until the
downslope timer completes its cycle. The the trigger may then be released to end the arc. Releasing before
the down slope is fin-ished will terminate the arc immediately.
16. MIG Volt/TIG Down Slope/ MMA Arc Force Control/MIG TIG post flow.
In each mode, the function of the control changes. In the MIG mode, the control is used to adjust the
arc voltage. While in TIG mode, the it functions to adjust the down slope of the arc current . In Stick mode,
the control is used to vary the automatic arc force current re-sponse. When used for stick welding the arc
force is also known as “dig”. When welding in stick mode, the current is increased as the volts fall off due to a
short arc length. This helps maintain the arc by providing more watt-age.
17. Wire Alloy Selector.
Select your wire type according to the basic categories of Fe (Steel), Ss (Stainless Steel) or Al
(Aluminum). This input must be made to properly use the Synergic function to automatically adjust the Volts
needed to weld at the selected wire speed.
18. Wire Diameter/ALT selector:
Select your wire diameter according of the type wire you are using. Selecting the correct wire diameter is
critical to optimum Synergic function of the welder, automatically compensating the voltage while the wire
speed is adjusted. For alternate full manual control of the welder to function in “normal” mig mode, select ALT.
This will allow for full, independent control of MIG wire speed and voltage.
Rear machine connections