- 27 -10. OPERATIONFront panel[19][18] [17] [3] [11] [13] [14] [3] [4] [6] [7][16] [9] [5] [10] [2] [12] [1] [15] [8][1] WELDING METHOD change-over key [9] ARC SPOT TIME setting key [17] LOAD key[2] AC WAVE change-over key [10] Function selection key [18] SAVE key[3] Parameter selection key [11] INITIAL CURR. selection key [19] ENTER key[4] Parameter adjusting knob [12] PULSE selection key[5] CRATER FILL. key [13] LIFT START key[6] AC FREQ. key [14] SLOPE selection key[7] AC BALANCE key [15] TORCH change-over key[8] AC-DC change-over frequency set up key [16] GAS CHECK keytfCRATER FILL.SPOT TIMEGASCHECK OFFONREPEATSPOTWELDINGMETHODON ON ON ON WATERTORCHSLOPEINITIALCURR.PULSELIFTSTARTLOADSAVEENTERA SecHz%J O BMEMORYJOBNO.AC-TIGDC-STICKAC-DC TIGDC-TIGPULSE CURR.BASE CURR.PULSE FREQ.UP SLOPE DOWN SLOPEINITIAL CURR. CRATER-FILL.CURR.WELDING CURR. WAVE FREQ.AC-DCFREQ.STANDARDSOFTHARDDCNO-LOADVOLTAGEWARNINGT1 T2AC BALANCE