224.3 Welding environment and safetyEnvironmenta) The machine can perform in environment where conditions are dry with a dampness levelof max 90%.b) Ambient temperature is between -10 to 40 degrees centigrade.c) Avoid welding in sunshine or drippings. Do not let water enter the gasd) Avoid welding in dust area or the environment with corrosive gas.e) Avoid gas welding in the environment with strong airflow.Safety normsOur welding machine has installed protection circuit of over voltage, over current and overheat. When voltage, output current and temperature of machine are exceeding the ratestandard, welding machine will stop working automatically. Because that will be damage towelding machine, user must pay attention to following.a) The working area is adequately ventilatedOur welding machine is powerful machine, when it is being operated, it generated by highcurrents, and natural wind can’t be satisfied with machine cool demands. So there is a fanin inter-machine to cool down machine. Make sure the intake is not in block or covered, it is0.3 meter from welding machine to objects of environment. User should make sure theworking area is adequately ventilated. It is important for the performance and the longevityof the machine.b) Do not over loadThe operator should remember to watch the max duty current (Response to the selectedduty cycle).Keep welding current is not exceed max duty cycle current. Over-load currentwill damage and burn up machine.c) No over voltagePower voltage can be found in diagram of main technical data. Automatic compensationcircuit of voltage will assure that welding current keeps in allowable range. If power voltageis exceeding allowable range limited, it is damaged to components of machine. Theoperator should understand this situation and take preventive measures.d) There is a grounding screw behind welding machine, with a grounding marker on it. Beforeoperation, welding crust must be grounded reliable with cable which section is over 6square millimeters, in order to prevent from static electricity, and accidents because ofelectricity leaking.