Spot Welder Control Board 100A - Digital Display Time Control Module for DIY Battery Spot Welding | Perfect for Home Workshops & Professional Repair Shops

Specification: Supply voltage: 9-12VACBidirectional thyristor: 40A, 100A (Optional)Package weight: Approx. 10gPackage list:1 * Main Board, 1 * Display Board, 1 * Ribbon CableThe control module of spot welding machine is developed for DIY or simple battery welding machine. It is mainly used for welding nickel plated single cell or battery pack. For example, 0.15 and 0.2mm steel plates for 18650 nickel plated lithium batteries and transformers above 500W can be welded with other batteries with different materials and thicknesses. For example, polymer battery electrodes should not be nickel plated and must be welded with sufficient high-power transformers.The module includes main board and display board, 40A and 100A bidirectional thyristor can be selected, excluding welding transformer, welding pen and other supporting tools. Features: You can save the last operation, monopulse triggers this module.Voltage compensation: automatically adjust the compensation output according to the change of local voltage, and display the local voltage and compensation value for about 1 second when triggered. Under the same welding parameters, the effective heat should be consistent. , solder joint.With 0-999 welding counting function, the welding times are clear at a glance. Press and hold the encoder for 3 seconds to clear the count.Time input 0-99 cycle (1 cycle is 20ms, for example, the adjustment value is 50, that is, the welding time is 1 second), and the welding strength can be adjusted by 30% - 99%.9-12v AC power input (need to use AC transformer, others such as DC, may lead to zero crossing detection failure, unable to trigger).The power input and external trigger are convenient and quick, without welding terminals. How to use: 1. Voltage Calibration Voltage calibration must be performed at the first time. Calibration is no longer required as long as power transformer of the module is not replaced. Of course, if the voltage is not correct, you can also calibrate it.Calibration operation: press the encoder knob, then supply power to the module, enter the calibration interface. The first option can adjust the flashing value, adjust with the short encoder, after three adjustments, short press the encoder to enter the operation interface. For example, the measuring voltage is 220V, then the calibration interface can be adjusted to 220. 2. Display Interface Digital adjustment: Short press the encoder knob until the corresponding value flashes, short press the encoder to enter the work interface. In work interface, when the calculated value is greater than 0, press the encoder for about 3 seconds to clear the value. Note: DIY this module requires some electrician knowledge. When installing, pay attention to the electrical safety of high-voltage components. When the frequency and power are high, SCR needs a radiator.The power that the module drives the load depends on the power of the silicon controlled rectifier. BAT41 (40A) can bring one microwave oven transformer, BAT100 (100A) you can bring two microwave oven transformers.If you do not know the welding time and power of the welded parts, it is recommended to increase the welding time and power from small to high to avoid damage to the welding pen. Causes of failure and troubleshooting: The local voltage does not match the actual voltage: re-calibrate the voltage.If the solder joints are not firm, adjust the soldering time and power until a satisfactory result is achieved.