1. The STM8 industrial single-chip microcomputer is the main control core.
2. Strong and weak light are isolated by an optocoupler, making the operation safer.
3. The power line and foot control line use screw connection terminals, which is more convenient and practical.
4. A high-precision single-turn potentiometer is used for time and current input to ensure convenient and accurate input.
5. Built-in power supply, status, trigger indicator, and working status are clearly visible.

6. The zero-crossing detection circuit is designed to ensure the accurate phase shift of the silicon-controlled rectifier.
7. The controller is compatible with 40A-100A thyristors.
8. The digital control interface can display the current time and current settings.
9. Time input 1-50, unit cycle (one cycle is 20ms), current input (30-99%)
Product: Spot welding control panel
Model: -D01
Thyristor: 40 A
During installation: the motherboard must be kept away from the large transformer! Not on the transformer! Because large transformers have strong electromagnetic interference! Note: The spot welding control board is independently developed for DIY or simple resistance welding and controller. The welding goal is achieved by adjusting the time and phase shift triggering of the thyristor.
Color: red
Material: PCB + metal

Package Contents:
1 x control board
1 x display panel
1 x connecting cable
2 x rotary caps

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.