1 Anti-static: When taking the tube or soldering pin, the hand must be strapped with a grounding wrist strap (the wrist strap is connected in series with a 1MΩ resistor to prevent the static electricity from being damaged by the human body.)
2 Welding: When soldering, the outer casing of the soldering iron should be grounded. It is best to unplug the power plug from the socket. The welding time should be short (the maximum welding temperature is 260 ° C, the welding time is less than 5 s), and the welding can be re-welded once after a certain time.
3 Working current: Do not exceed the maximum value during the adjustment, nor can there be overshoot current. Prevent the disconnection in the adjustment, otherwise the tube will be burned out. Both AC and DC work, but the peak value must not exceed the maximum value.
4 If you do not need to monitor the output, you can also not use VD2.
5 Prevent the laser beam from damaging the eye: When the laser is working, the light source must not be viewed directly or through reflection, otherwise it will hurt the eyes. According to international practice, a warning label should be attached to the laser.