2. Description of symbols
Read this operation manual carefully before use。
Warning in operation。
Single-phase static frequency converter-transformer rectifier。
Symbol of single-phase AC power supply and rated frequency。
Can be used in the environment which has high risk of electric shock.
IP Degree of protection, such as IP23S.
U
1
Rated AC input voltage (with tolerance ±15%)
I
1max
Rated maximum input current
I
1eff
Maximum effective input current
X Duty cycle The ratio of given duration time/the full-cycle time
Note1: This ratio shall be within 0~1, and can be indicated by percentage.
Note2: In this standard, the full-cycle time is 10 min.
For example, if the duty cycle is 60%, the load-applying time shall be 6 min and the following
no-load time shall be 4min.
U
0
No-load voltage, Open circuit voltage of secondary winding.
U
2
Load voltage
H Insulation class
It’s forbidden to dispose electric waste with other ordinary waste. Please take care
of our environment.
Electric shock risk warning
Current unit "A"
Overheat protection indicator
Overcurrent protection indicator
VRD function indicator
MMA mode
LIFT TIG mode
Selection of welding electrode diameter for MMA
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