III. Usage :Voltage calibration:The module has the network voltage compensation function, so the voltage calibration must be carried out when the first machine is installed, and in , as long as the module transformer is not replaced, there is no need to recalibrate. Of course, when you feel the display voltage is wrong and it can be calibrated. The following are the mains voltages are not calibrated and displayed during operation Pay attention to the safe of the high voltage part during installation. When the usage frequency and are high, silicon control rectifier requires external radiator to disspate heat.The of the module driving load depends on the of silicon control rectifier (). BAT41 (40A) can carry a microwave oven transformer, BAT100 (100A) can carry two microwave oven , and the recommended one for Loop transformer is 100A. Precautions for :This module DIY needs to have certain electrician knowledge, if you are complete freshman, please refer to the electrician's knowledge before you . Do not know the welding time and of the welded parts, it is recommended the welding time and be adjusted from small to upper to avoid damage to the welding pen.Fault and troubleshooting,The supply does not match the actual voltage: re-voltage calibration. The solder joint is not secure or soldered: adjust welding time and until satisfactory results are achieved.Can be set to save the last operation, the module double trigger, turn off any set of trigger time, you can change double to single trigger.The main board and the display operation panel are separated, and the outer casing can be flexibly assembled. With grid voltage compensation, the output of compensation can be automatically adjusted according to the of supply, and the electric voltage of about 1 second can be displayed when triggered, so the effective heat of welding is with the welding parameters, and the welding spot is uniform. DIY or simple battery welder development welding. Weld