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OPERATION
B-18 B-18
SQUARE WAVE TIG 355
PRESET
CURRENT
PRESET
CURRENT
CRATER FILL
% CURRENT
BACKGROUND
% CURRENT
CLOSE ARC
START SWITCH
OPEN ARC
START SWITCH
AFTER SPOT TIME
PREFLOW
START TIME
START CURRENT
LOCAL CURRENT CONTROL
START SWITCH ON
(SHORT HOT START SHOWN)
PULSE SWITCH ON
CRATER FILL SWITCH ON
(SLOW FADE-OUT SHOWN)
SPOT SWITCH OFF
LOCAL OR REMOTE
SPOT SWITCH ON
ALL OTHER LOWER PANEL SWITCHES
OFF
(SPOT TIME IS CUT SHORT IF ARC
START SWITCH IS OPENED BEFORE
END OF SPOT TIME)
SPOT TIME
SPOT TIME
REMOTE AMPTROL CONTROLS CURRENT
FROM 2 AMPS UP TO PRESET CURRENT
START & PULSE & CRATER FILLSPOT
SPOT & START PULSE & CRATER FILL
EFFECT OF CONTROLS ON TIG WELDING
CLOSE ARC
START SWITCH
WELD BEGINS
OPEN ARC
START SWITCH
THE SPOT TIMER CAN BE USED TO TIME A PROGRAMMED SEQUENCE OF START AND/OR
PULSE UP TO 5 SECONDS LONG, OPTIONALLY FOLLOWED BY CRATER FILL. IF CRATER FILL
IS USED, FADE-OUT BEGINS AT THE END OF THE SPOT TIME.
CLOSE ARC
START SWITCH