2、 禁止过载！
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。
电流过载将会明显缩短焊机的使用寿命，甚至可能烧毁焊机。
3、 禁止电压过高！
电源电压列在“主要性能参数”表中，在一般情况下，焊机内的电压自动补偿电路将保证焊接电流保持在允许的范围。如果电源电压超过允许值，将会损坏 焊机，使用人员应充分了解此种情况，并采取相应的预防措施。
4、 每个焊机的后面都附有一个接地螺丝，并标有接地标记。在使用前，选用一根截面大于6mm2的电缆线，将焊机外壳可靠接地，以释放静电或防止由于漏电可能发生的事故。
5、 如果焊机工作时超过标准负载持续率，焊机可能会突然进入保护状态而中止工作，这表示焊机超出标准负载持续率，过度热能触发了温控开关，使焊机停止工作，同时在前部面板上的过热指示灯亮起。在这种情况下，您不必拔下电源插头，以便冷却风扇可持续工作对焊机进行冷却。当红色指示灯熄灭后，温度降至标准范围，可以重新开始焊接。

Two banned contained! \ \
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. \ \
The current set will significantly shorten the life of welding, or even burned welder. \ \
3, ban high voltage! \ \
Supply voltage in the "main performance parameters" in the table, under normal circumstances, the welding voltage compensation circuit will guarantee automatic welding current to keep the scope. If the supply voltage exceeds allowable values will be damaged welder, the use of such staff should fully understand the situation and take appropriate preventive measures.
4, each machine comes with a grounding behind screws, and those with ground markers. Before use, the use of a cross-section of more than 6mm2 cable, welding shell reliable grounding, the release of electrostatic or prevent leakage may occur due to the accident. \ \
5, welding work load over the continued rate welder may suddenly enter the state and the protection of the stay, which said welder load sustained beyond the standard rate, excessive heat triggered a temperature control switches, the welder to stop work while on the front panel light switch overheating. In such circumstances, you need not unplug the power plug to work on sustainable cooling fan for cooling welder. When the red light is extinguished, the temperature is reduced to the standard range, can be re-started welding. \ \