This manual introduces the Chinese operation method of Honeywell UDC3300 process controller, including panel display screen description, keyboard function introduction, configuration submenu, loop 1 parameter tuning, loop 2 parameter tuning, set point slope/set point programming, adaptive adjustment setting, control algorithm setting, output algorithm, input 1, input 2, input 3, loop 1 control, loop 2 control, options, communication, alarm settings, display settings, calibration, backup manual operation, etc.