Megmeet Dex CM3000 - DC Burn-Back and Chopping Time Settings (F21, F22); Short-Circuit Current Slope and Amplitude (F23, F24)

Chapter III Dex CM3000 11
Full-Digital Control CO2/MAG/MIG Multi-FunctionWelding Machine
2. Adjust F20 parameters by rotating the right knob (table 3-9)
3. Press “Function” key again to exit from internal menu, F20 parameter settings is completed.
Table3-9ParameterTable of DC Burn-Back Voltage
Function Code Unit Adjusting Range Step Length Default Value
F20 V
12～30V
0.1V 12V
 DC Burn-Back Time (F21)
1. Enter into internal menu by long pressing “Function” key; turn the panel knob to F21.
2. Adjust F21 parameters by rotating the right knob (table 3-10)
3. Press “Function” key again to exit from internal menu, F21 parameter settings is completed.
Table3-10Parameter Table of DC Burn-Back Time
Function Code Unit Adjusting Range Step Length Default Value
F21 s
0.00～1.00s
0.01s
Automatic
Matching
 DC Chopping Time（F22）
1. Enter into internal menu by long pressing “Function” key; turn the panel knob to F22.
2. Adjust F22 parameters by rotating the right knob (table 3-11)
3. Press “Function” key again to exit from internal menu, F22 parameter settings is completed.
Table3-11Parameter Table of DC Ball-Cleaning Time
Function Code Unit Adjusting Range Step Length Default Value
F22 s
0.00～1.00s
0.01s 0.24s
 FastRising Slope of DC Welding Short-Circuit Current（F23）
Current rising speed changes during short-circuit time under DC welding status.
1. Enter into internal menu by long pressing “Function” key; turn the panel knob to F23.
2. Adjust F23parameters by rotating the right knob (table 3-12)
3. Press “Function” key again to exit from internal menu, F23parameter settings is completed.
Table3-12 Parameter Table ofQuick Rising Slope of DC Welding Short-Circuit Current
Function Code Unit Adjusting Range Step Length Default Value
F23 /
1～300
1 Automatic Matching
 FastRising Amplitude of DC Welding Short-Circuit Current（F24）
Current rising speed amplitude during the short-circuit time under DC welding.
1. Enter into internal menu by long pressing “Function” key; turn the panel knob to F24.
2. Adjust F24parameters by rotating the right knob (table 3-13)
3. Press “Function” key again to exit from internal menu, F24 parameter settings is completed.
Table3-13Parameter Table ofQuickRising Amplitude of DC Welding Short-Circuit Current
Function Code Unit Adjusting Range Step Length Default Value
F24 A
0～500A
1A AutomaticMatching