Volt-Ampere Curves; Receiving-Handling - ESAB Migmaster 300i cvcc Service And Maintenance Manual

II. INTRODUCTION
2.1 GENERAL
This manual has been prepared for experienced weld-
ers. Do NOT permit untrained persons to install, oper-
ate or maintain this equipment. Do NOT attempt to
install or operate this equipment until you have read
and fully understand these instructions.
This manual is intended for use in familiarizing per-
sonnel with the design and operation of this equipment.
All information presented here should be read care-
fully before installing and using this equipment.

2.2 RECEIVING-HANDLING

Upon receipt of this equipment, clean all packing
material from around the unit and immediately
inspect for any damage that may have occurred
during shipment. Any claims for loss or damage
occurring in transit must be filed with the carrier.
The carrier will furnish a copy of the bill of lading
and the freight bill on request, if the need to file a
damage claim arises.
When requesting information regarding this equip-
ment, make sure that you include product name,
part number, and serial number.
2.3 DUTY CYCLE (Figure 2-1)
T
he duty cycle of the equipment is the percent-
age of a 10-minute period which it can operate
safely at a given output current. The Migmaster
300i is rated at 300 amps at 40% duty cycle.
Figure 2.1 Duty Cycle
2.3.1 VOLT/AMPERE
(Figure 2-2)
The Volt/Ampere curves show the output voltage
available at any given output current. The actual
operating point of load Voltage and Current is
determined by process, electrode, shield gas, wire
feed speed, and operating technique.
6
Figure 2-2 Volt/Ampere Curves
CURVES