注意事项及预防措施
1、 环境
1） 焊接操作应在一个相对干燥的环境下进行，空气湿度一般不应超过90％。
2） 周围温度应在-10℃至40℃之间。
3） 避免在日光下或雨中进行焊接，不要让水或雨渗进焊机内。
4） 避免在灰尘区或含有腐蚀性气体环境下进行焊接工作。
5） 避免在有较强的空气流动的环境中进行气体保护焊接操作。
2、安全要点
KEYUE焊机内已安装有过压、过流及过热保护电路，当电网电压、输出电流及机内内温度超过设定的标准后，焊机将自动停止工作，但过度的使用（如电压过高）仍会导致焊机的损坏，所以您仍需要注意以下事项：
1、 确保通风良好！
KEYUE焊机是小型焊机，在操作时，有较大的工作电流通过，自然通风不能满足焊机冷却要求，故内装一个风扇来有效地冷却焊机以使其工作平稳。
使用人员应确认通风处未被覆盖或堵塞，焊机和周围物体的距离应不小于0.3米，用户应一直注意保持良好的通风，这对于焊机更好的工作和保证更长的使用寿命是非常重要的。

Attention to issues and preventive measures
An environment
1) welding operation in a relatively dry environment, the air humidity should not generally exceed 90%.
2) ambient temperature should be -10 ° C to 40 ° C.
3) avoid the sun or the rain welding, do not let water or rain infiltrated the welder.
4) avoid the area or dust containing corrosive gas welding work environment.
5) Avoid strong in the air flow of gas in the environment protection welding operation.
2, safety tips
KEYUE welder has been installed in over-voltage, over-current protection circuit and overheat when grid voltage, output current and temperature of the over-set standards, welding machine will automatically stop working, but excessive use (such as high-voltage) will lead welder damage, so you still need to pay attention to the following matters :
One, to ensure good ventilation.
KEYUE welder is small welder, in operation, more work through current, natural ventilation can not meet the welder cooling requirements, it inside a cooling fan to effectively smooth welding machine to make it work.
Officers should recognize the use of the ventilation was not covered or blocked, welder and the surrounding objects should not be less than the distance of 0.3 meters, users should always pay attention to maintaining good ventilation, which welder better jobs and guarantee a longer life is very important.