The PROTIG 231L DC PFC is a pulsed DC TIG welding generator with an integrated water cooling unit. Its PFC technology allows it to operate from 195 V to 265 V and achieve a very stable arc even on 100 m site extension leads. In stick electrode welding, its Pulsed MMA mode facilitates upward welding.
2 welding processes possible with this unit:
-TIG DC
DC Standard: welding with smooth current on the majority of ferrous materials.
Pulsed DC up to 2 kHz: controls the temperature of the weld pool, limits distortion and allows the joining of thin sheet metal from 0.3 mm.
2 tacking modes:
- Spot: adjustable tacking from 0.1 to 60 seconds for parts prior to welding.
- Pulse: adjustable tacking from 0.01 to 60 seconds on thin sheet metal prior to welding.
2 arc ignition types:
- HF non-contact
- LIFT by contact for electrically sensitive environments. 3 trigger modes: 2T, 4T and 4T LOG.
Advanced secondary regulation for optimal arc stability and constant current in all positions.
Memory storage of up to 50 programs per process for repetitive tasks. Advanced menu for optimal welding control.
Current and voltage display during and after welding (WPS/PQR)
Automatic torch detection: compatible with blade-type, dual-button, potentiometer and Up&Down torches.
Remote controls (foot pedal or manual, optional) connectable without tools.
VRD activatable via an internal switch to lower the open-circuit output voltage to < 35 V.
Intelligent fan management to reduce power consumption, dust intake and unit noise.
MMA
MMA Standard: rutile and basic electrodes (up to Ø 5 mm).
Pulsed MMA up to 500 Hz: facilitates vertical upward welding (pipe joints / pipeline…)
Product highlights
Accepts extension leads up to 100 m.
Reinforced casing and anti-shock feet.
Compact and easily portable on site.
Protected against overvoltages up to 400 V (PROTEC 400).
Unit delivered with:
1 SR20 DB torch 4 m long
1 earth clamp + cable section 25 mm² length 2 m
1 electrode holder + cable section 25 mm² length 2 m