What is the duty cycle rating for the Dynasty 280 at different amperage levels?

The Dynasty 280 has different duty cycle ratings depending on output amperage: at 280 amps (15% duty cycle), at 200 amps (60% duty cycle), and at 160 amps (100% duty cycle). Duty cycle indicates the maximum percentage of time in a 10-minute period that the welder can operate at rated output without overheating. (Page 13)