Arcoweld ArcoTig HF200P, Руководство оператора

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
turned off, the output current is DC current;
t3 : Release the Torch switch, the output current slopes down; if the output pulse function is turned on, the
slope down current is pulsed;

t3
～
t4
：
The output current slopes down to minimum current (5A), stop arc; adjustment range of down slope
time: 0~5S;

t4
～
t5
：
Post flow time, adjustment range of post flow time: 0.1
～
10.0S;

t5
：
Electromagnetic valve is closed and stop argon flowing. Welding is finished.
Short circuit protect function
：
- T IG /DC/LIFT
：
If the tungesten electrode touches the workpiece when welding, the current will drop to 30A, which
can reduce the tungsten spoilage,prolonging the using life of the tungsten electrode
，
and preventing tungsten
clipping.
- TIG /DC/HF
：
If the tungsten electrode touches the workpiece when welding, the current will drop to 0 within 1s,
which can reduce wear,prolonging the life of the tungsten electrode
，
and prevent tungsten clipping.
- MMA operation
：
if the electrode touches workpiece over two seconds, the welding current will drop to the 0
automatically to protect the electrode.
Retains arc function- Even if arc-break occurs the HF will keep the arc stable.
Notices:

Check the condition of welding and connection units firstly, otherwise there will be a malfunction such as
ignition spark
、
gas leakage
、
out of control and so on.

Check whether there is enough Argon gas in the shielding gas cylinder, you can test the electromagnetic gas
valve through the switch on the front panel.

Do not let the torch aim at your hand or your body. When you press the torch switch, the arc is ignited with a
high-frequency, high-voltage spark, and the ignition spark can cause interferences in equipment.

The flow rate is set according to the welding power used in the job. Turn the regulation screw to adjust the gas
flow which is shown on the gas hose pressure meter or the gas bottle pressure meter.
●
The spark ignition works better if you keep the 3mm distance from the workpiece to the tungsten electrode
during the ignition.