10
current”, it is always selected in a lesser value which can protect arc not breaking).
c.
Open up the valve of argon bottle and adjust the flowmeter to the needed value.
d.
Set post flow gas time:
A
djusting post flow gas time means that argon gas can be turned off later for a proper time after
welding being finished and arc being broken. It can more really protect the workpiece and guarantee
the quality of welding. The detail operation is: adjust the “post flow gas time” knob and select
needed value among 1-10 seconds according to the value of welding current (summit current).
Generally speaking,
the bigger welding current or the higher welding quality is, the longer post
flow gas is; otherwise, the smaller or the lower is, the shorter is for saving gas.
The more the “post flow gas time” knob is rotated in clock-wise direction, the more post flow gas
time is increased.
6. WELDER OPERATING
MMA welding:
After all switches and knobs are checked in correct situation on the base of item 5.4, adjust “current
adjusting” knob according to thickness of workpiece, select the proper welding current and rods,
then begin to formally weld.
AC TIG welding:
a. According to item 5.4 check whether all switches and knobs are in correct situation.
b. After rotating the knob “base current”
to the end
in clock-wise direction, select the proper
welding current by adjusting knob “current adjust”.
c. Press the switch on torch and ignite arc by HF. The arc is automatically extinguished after
loosening the torch switch. The post-flow time can be adjusted among 1-10 seconds. Close
the argon bottle and turn off the welder after welding.
Содержание TIG200P
Страница 17: ...16 9 CIRCUIT DIAGRAM...
