... turn on the power switch, through the mode switch key-press button to set up braze welding, shows q_X, and according to ... will circulate with dXX, q_X, h_X three types. The meaning indicates: spot welding, braze welding, backfire welding, press this button a long ... mode, no status block between electrodes, press (START) button to carry on welding, press this button a long time, and only respond one ...