Control Systems The Cyclomatic Series Arc Voltage Control system au- tomatically maintains precise arc length by controlling arc voltage to within ±0.1 volts. The AVC-501 allows convenient, flexible control of all welding conditions The new microprocessor-based controller features extremely rugged resistance to high frequency. The user-friendly control assists in minimizing set-up times and operator training times. Adjusting or setting con- trol parameters is made easy via discreet dials pro- viding fast and accurate changes to all key control The patented Lift-Start™ feature allows the starting of a TIG arc without the use of high frequency when paired with a power source with similar features. All in all, the new AVC-501 offers the control and flex- ibility you have come to expect from the Cyclomatic product line. Two models available - standard 6" (152 mm) and compact 1" (25.4 mm) drive stroke. Obtain higher speed welding from your exist- Fast detection of burn-through with automat- ic power shut off and arc head retraction for operator equipment protection. • GTAW and Plasma applications • Automatic compensation for electrode • Lower operator skill requirements. • Minimized set-up times. • Consistent quality, weld after weld. 15 Goodyear St, Irvine, California 92618 U.S.A. • Tel: (949) 951-1515 • Fax: (949) 951-9237

CYCLOMATIC SERIES ARC VOLTAGE CONTROL Compact AVC Drive Unit The space saving, compact drive unit is lim- ited to a 1" (25.4 mm) stroke. A stepper mo- tor driving a precision ball screw provides motion. The high frequency filter enclosure mounts conveniently near the drive unit and features up/down jog buttons for torch po- Standard AVC Drive Unit The standard drive unit is a rugged electro- mechanical device designed to minimize mechanical play and backlash. A stepper motor driving a precision lead screw pro- vides motion. A filter network provides high frequency protection. Manual up/down jog...