User Manual

ionTig 200 Pulse PFC
Copyright © Mundaka Welding & Gases, Inc.
29
S/N
Troubles
Reasons
Solution
There is not
spark on the
HF igniting
board.
The HF igniting board does not work.
Repair or change Pr8
The distance between the discharger
is too short.
Adjust this distance (about
0.7mm).
The malfunction of the welding gun
switch.
Check the welding gun switch,
control cable and aero socket.
6
No gas flow (TIG)
Gas cylinder is close or gas pressure
is low
Open or change the gas cylinder
Something in the valve
Remove it
Electromagnetic valve is damaged
Change it
7
Gas always flows
The gas-test on the front panel is on
The gas-test on the front panel is
off
Something in the valve
Remove it
Electromagnetic valve is damaged
Change it
The adjustment knob of pre-gas time
on the front panel is damaged
Repair or change it
8
The welding current cannot
be adjusted
The welding current potentiometer on
the front panel connection is not good
or damaged
Repair or change the
potentiometer
9
The welding current
displayed isn’t accordant
with the actual value.
The min value displayed isn’t
accordant with the actual value.
(Please refer to §3.1)
Adjust potentiometer Imin on the
power board.
The max value displayed isn’t
accordant with the actual value.
(Please refer to §3.1)
Adjust potentiometer Imax on the
power board.
10
The penetration of molten
pool is not enough.
The welding current is adjusted too
low
Increase the welding current
11
The alarm lamp on the
front panel is on
Over heat
protection
Two much
welding current
Reduce the welding current
output
Working time too
long
Reduce the duty cycle (work
intermittently)