![background image](http://html1.mh-extra.com/html/stealth/9011h/9011h_operators-manual_1368250013.webp)
STEALTH DIGI-TIG 180 DC PULSE PFC MV
3.5 Polarity Connection (MMA)
MMA (DC): Choosing the connection of DCEN or DCEP according to the different
electrodes.
Please refer to the electrode manual.
3.6 Assembling the Equipment (TIG)
•
The workpiece is connected to the positive electrode of the welding machine,
and the welding torch is connected to the negative electrode – DC POSITIVE
CONNECTION, otherwise – DC NEGATIVE CONNECTION.
Generally, it is operated in DC POSITIVE CONNECTION in TIG welding mode.
• Control of the torch switch cable consists of 2 wires, pedal control of 3 wires and
the aero socket of 14 leads.
• Consumable parts for TIG torch, such as tungsten electrode / tip / gas nozzle /
electrode shield (short/long) – contact your supplier quoting the part numbers.
• When TIG DC PULSE PFC MV-series welding machines are operated in HF Ignition
mode, the ignition spark can cause interferences in equipment near the welding
machine. Be sure to take appropriate safety precautions or shielding measures.
INSTALLATION AND ADJUSTMENT
11
under voltage protection inside the welder, the alarm light will on, at the same time, the current
output will be cut off.
If the power supply voltage continually goes beyond the safe work voltage range, it will
shorten the welder life-span. The below measures can be used:
l
Change the power supply input net. Such as, connect the welder with the stable power supply
voltage of distributor;
l
Induce the machines using power supply in the same time;
l
Set the voltage stabilization device in the front of power cable input.
§3.5 Polarity Connection
(
MMA
)
MMA (DC): Choosing the connection of DCEN or DCEP according to the different electrodes.
Please refer to the electrode manual..
DC NEGATIVE CONNECTION
DC POSITIVE CONNECTION
13