Additional Precautions; Troubleshooting - GYS TIG 168DC Manual Del Usuario

Burns
Fire risks
Fumes
Additional
Precautions
People wearing Pacemakers are advised to see their doctor before using this device.
Handle gas bottles with care - there is increased danger if the bottle or its valve are damaged.

TROUBLESHOOTING

Symptom
The device does not deliver any
current and the yellow thermal
default light is on.
The display is on but the device does
not deliver any current.
When starting up, the display
indicates
Unstable arc
The tungsten electrode oxidizes and
tarnishes the end of the weld.
The electrode melts
"PH" is displayed on screen
Wear protective (fire-proof) clothing (cotton, overalls or jeans).
Wear protective gloves and a fire-proof apron.
Ensure other people keep a safe distance from the work area and do not look directly at
the welding arc.
Protect others by installing fire-proof protection walls.
Remove all flammable products from the work area. Do not work in presence of
flammable gases.
Do not inhale welding gases and fumes. Use the device in a well ventilated environment,
with artificial extraction if welding indoors.
Any welding operation undertaken in.....
- rooms where there is an increased risk of electric shocks,
- Poorly ventilated rooms,
- In the presence of flammable or explosive material,
......should always be approved by a "responsible expert", and made in presence of
people trained to intervene in case of emergency.
Technical protection as described in the Technical Specification CEI/IEC 62081 must be
implemented.
Welding in raised positions is forbidden, except in case of safety platforms use.
Do not use the welding unit to unfreeze pipes.
Thermal protection is on.
The earth clamp or electrode holder
is not properly connected to the unit.
The voltage is not within range
TIG 168 = 230V +/- 15%.
TIG 200 = 85V - 265V
TIG 250 = 400V (+/- 15%)
Failure of the tungsten electrode
Gas flow is too high
Unprotected welding zone
Fault from post-gas
Polarity error
Phase detection problem
Causes Remedies
Wait for the end of the cooling
period, approx. 2mn. The light
turns off.
Check the connections
Check the electrical installation.
Ensure the correct size of Electrode is
being used.
Use a well prepared tungsten
electrode
With weak currents, increase the
frequency
Protect welding zone against air flow
(Post-gas) whilst cooling.
Increase post-gas duration
Check and tighten all gas connections
Check that the earth clamp is
properly connected to +ve
Check that all phases are connected.
Reset the machine to reset the fault.
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