使用人员应记得随时观察最大的允许负载电流（相对可选定的负载持续率），保持焊接电流不超过最大的允许负载电流。
Use should always remember to observe the largest load current (relative to the load can be selected sustained rate), maintaining welding current is not allowed to exceed the maximum load current.
电流电压边续可调，调节范围宽，负载持续率高，可连续焊接。
Contimuously adjustable current and voltage, wide adjustment range, high duty cycle, continuous welding.
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