ARC 200CT Manuale d'uso - Pagina 17

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QUESTIONS TO BE RUN INTO DURING WELDING

Fittings, welding materials, environment factor, supply powers maybe have something to do with welding. User

must try to improve welding environment.

A. Arc-striking is difficult and easy to pause

1. Make sure quality of electrode is high.

2. If the electrode is not dried, it will cause unstable arc, welding defect increases and the quality is down.

3. If use extra-long cable, the output voltage will decrease, so please shorten the cable

B. Output current not to rated value

When power voltage departs from the rated value, it will make the output current not matched with rated

value; when voltage is lower than rated value, the max output may lower than rated value.

C. Current is not stabilizing when machine is being operated

It has something with factors as following:

1. Electric wire net voltage has been changed.

2. There is harmful interference from electric wire net or other equipment

D. Too much spatter

1. Maybe current is too big and stick's diameter is too small.

2. Output terminal polarity connection is wrong, it should apply the opposite polarity at the normal technics,

which means that the stick should be connected with the negative polarity of power source, and work

piece should be connected with the positive polarity. So please change the polarity.