GYS TIG 168 DC HF Mode D'emploi page 21

MADE IN FRANCE
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 tar-
nishes the end of the weld.
The electrode melts
"PH" is displayed on screen
TIG 168 / TIG 200 DC
Causes
The earth clamp or electrode
holder is not properly connected to
The voltage is not within range
.
Failure of the tungsten electrode
Thermal protection is on.
the unit.
TIG 168 = 230V +/- 15%.
TIG 200 = 85V - 265V
Gas flow is too high
Unprotected welding zone
Fault from post-gas
Polarity error
Phase detection problem
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 Elec-
trode 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 connec-
tions
Check that the earth clamp is pro-
perly connected to +ve
Check that all phases are connec-
ted. Reset the machine to reset
the fault.
EN
21