... energy between the top and bottom electrode to welding. Complete braze welding after release start button (or feet step switch). Relax ... dXX, q_X, h_X three types. The meaning indicates: spot welding, braze welding, backfire welding, press this button a long time, only ... heating immediately.f) Stand-by state, digital show q_X means braze welding mode, no status block between electrodes, press (START) ...