Megmeet Dex CM3000, User Manual

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Chapter
IV
Dex PM3000 29
Full-Digital Control CO2/MAG/MIG Multi-FunctionWelding Machine
1. Enter into the internal function, and adjust the welder panel knob to F31.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F34 parameters (shownin table 4-18), press the "Fn" key
to confirm, and F31 parameter setting is completed.
Table4- 18 ParameterTable of Pulse Burn-Back Time
Function Code Unit Adjusting Range Step Length Default Value
F34 s 0~1s 0.01s Automatic Matching

Pulse Chopping Time
（
F35
）
1. Enter into the internal function, and adjust the welder panel knob to F35.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F35 parameters (shownin table 4-19), press the "Fn" key
to confirm, and F35 parameter setting is completed.
Table4- 19 ParameterTable of Pulse Chopping Time
Function Code Unit Adjusting Range Step Length Default Value
F35 1/32ms 0~250 1 53

Double Pulse Frequency
（
F40
）
The number of changes that strong pulse and weakpulsewithin 1 second is called double pulse frequency.
𝒇𝒇 ( 𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅𝐅 ) =
𝟏𝟏
𝐓𝐓 ( 𝐓𝐓𝐓𝐓𝐓𝐓𝐅𝐅𝐓𝐓 )
1. Enter into the internal function, and adjust the welder panel knob to F40.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F40 parameters (shownin table 4-20), press the "Fn" key
to confirm, and F40 parameter setting is completed.
Table4- 20 Parameter Table of Double Pulse Frequency
Function Code Unit Adjusting Range Step Length Default Value
F40 Hz 0.2~10 0.1 1.0

Double Pulse Duty Cycle
（
F41
）
In one cycle (T), time proportion of thestrong pulse and weak pulse
1. Enter into the internal function, and adjust the welder panel knob to F41.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F41 parameters (shownin table 4-21), press the "Fn" key
to confirm, and F41 parameter setting is completed.
Table4- 21 ParameterTable of Double Pulse Duty Cycle
Function Code Unit Adjusting Range Step Length Default Value
F41 Percentage 0~99 1 50

Current Intensity of Double Pulse
（
F42
）
Current value during double-pulse welding.
Current calculation formula on double-pulse is as follows:
Set the dual-pulse current parameter value as X
Peak current=100+X
Base current=100-X
Step
Step
Step