Kemppi Protig 410 Operation Instructions Manual

12 – PROTIG 410 / 0537 © KEMPPI OYIn order to reduce spark voltage in difficult interference situations, take contact with authorizedKemppi service work shop.Spark ignition:Arc is ignited with high frequency with high voltage spark without touching workpiece.Use of torch switch starts spark generation. Spark strikes from electrode to work pieceand arc is ignited. Welding current is immediately set at set value. Spark distance,shielding gas flow and current through earthing press have a profound effect on igni-tion.If arc is not igniteed within 1s, the ignition must be repeated.Be careful that the torch tip is not touching near skin, clothes or componentswhich are sensitive for damage, like panels, connectors or switches.3.1.3. Selection of torch switch operation2-function:1. After having pressed torch switch down, shielding gas starts to flow. Weldingstarts after ca. 0,3 s pregas time, welding current goes immediately up to currentlevel according to settings.2. When you release torch switch up, welding current begins to go down smoothly,and current is cut off after time defined by down-slope time. When welding cur-rent is zero, there begins post gas time.3. Tack weld automatics with 2-function: if welding time was less than 3s, therewon`t come any down-slope time.Begin trial operation of unit with this mode of switch in order to avoid confusion. Gothrough all operations and controls of panel.4-function:1. Press torch switch down, shielding gas begins to flow.2. Release the switch up, welding is started as above. Welding is continued, whenthe switch is released.3. Press the switch again down, welding is continued.4. Release the switch up, welding is stopped as above.Stopping unintentional startWith spark ignition:If arc is not ignited, e.g. torch has not been directed towards work piece, ignition spark will goout within 1 s from pressing down the torch switch. If eletrode is fastened on the work piecewhen the torch is pressed down, welding current will be switched off immediately and therecomes no ignition spark.With contact ignition:If electrode is fastened on the work piece, when torch is switched down, and electrode is notlifted off from the work piece, welding current is switched off within 1 s.3.1.4. Adjustment of control unitWith + and - keys, parameters (time or current) are adjusted to higher orlower values.Adjustable operation is selected with arrow keys: welding current, currentdown-slope time or post gas time.Adjustment speed is growing during adjustment.