User manual
RESOLUTION DES PROBLEMES
This device integrates a default management system.
A series of messages displayed on the control board allows for a fault and anomalies diagnosis.
Error
Thermal protection
Torch fault
Pedal fault
Push button(s) fault
Troubleshooting
The indicator is on but the product does
not deliver any current.
The product is connected to the mains,
you are feeling tingling when touching
the car body.
The machine welds poorly.
Unstable arc
The tungsten electrode becomes
oxidized and tainted at the end of the
welding
The electrode melts
WARRANTY CONDITIONS
The warranty covers defaults or manufacturing defects for 2 years from the date of purchase (parts and labour).
the warranty does not cover:
• Any other damage due to transport.
• Normal wear of parts (eg. : cables, clamps, etc.).
• Damages due to misuse (power supply error, dropping of the equipment, disassembling).
• Environment related failures (pollution, rust, dust).
In the event of a malfunction, return the unit to your dealer, enclosing:
- a dated proof of purchase (till receipt, invoice...)
- An explanatory note of the failure.
32
Translation of the original
instructions
Meaning
Maximum duty cycle reached.
Ambient temprature above 40°C.
Obstructed air input.
Faulty torch(es) trigger(s) / button(s)
The pedal is pressed down
Push button(s) short-circuited
The earth clamp or the electrode holder is not
connected to the unit.
The earth contact is faulty.
Polarity error
Fault due to the tungsten electrode
Gas flow incorrectly set
Gas problem, or gas flow stops too early
Polarity error
CAUSES
Causes
Check the connections
Check the plug and the earth of your installa-
tion.
Check the recommended polarity (+/-) on the
electrode box.
Use an electrode size more suitable to the
thickness of your metal.
Use an tungsten electrode properly prepared.
Use a tungsten electrode that is suitable for
DC.
Check the gas flow rate on the cylinder pres-
sure gauge.
Check and tighten every gas connection. Wait
for the electrode to cool down before switching
off the glas flow.
Check that the earth is connected to the (+) ant
the torche to the (-) of the product
PROTIG 250 DC TRI
SOLUTIONS
Wait for the indicator to turn off before
resuming welding operations.
Observe the operating factor and ensure
good ventilation
Make sure that nothing presses the torch
trigger(s) when the product is switched
on.
Make sure that nothing presses on the
foot pedal when the product is turned on.
Check that none of the push buttons are
pressed
Solutions