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Solution: 1 whether the laser resonator changes; micro-tuned resonator lens. The best output light spot; 2 sound and light crystal shift or the output power of the sound and light power supply is low; adjust the acousto-optic crystal position or increase the acousto-optic power supply operating current; 3 into the galvanometer laser off-center: adjust the laser; 4 if the current adjustment To 20A or so is still not strong enough light: Xenon lamp aging, replacement of new lights.
Marker fault 2: Xenon lamp cannot trigger
Solution: 1 Check all the power cables; 2 aging high pressure xenon lamp, replace the xenon lamp.
Operation laser laser engraving machine matters needing attention
1 It is forbidden to start the laser power supply and Q-switching power supply when the water or water circulation is not normal.
2 Q power supply is not allowed to work without load (that is, Q power output is left floating);
3 abnormal phenomenon occurs, first close the galvanometer switch and key switch, and then check;
4 It is not allowed to start other components before the deuterium lamp is lighted to prevent the high pressure from damaging the components.
5 Pay attention to the output of the laser power supply (anode) hanging to prevent it from igniting or puncturing with other electrical appliances;
6 Keep the inner circulation water clean. Rinse the tank regularly and replace with deionized or pure water.
Use and replacement of marking light
Turn off the water cooler, laser power supply. Open the upper three chamber covers, remove the lamp or crystal to be replaced, replace the lamp or crystal, and replace the chamber lid. Water cooling machine, laser power supply, adjust the laser power supply current to (15 ~ 20) A or so. Place a small piece of wood or black paper between the front diaphragm and the beam expander. The spot formed by laser ablation should be seen. If not, adjust the three knobs of the front diaphragm holder slightly until the spot appears.
After the laser is debugged, it is necessary to repeatedly adjust the three knobs of the front diaphragm holder to make the spot strongest. If the laser is too strong and the brightness is too high to be observed, the power supply current can be reduced. Turn off the laser power.
Special attention: The time to replace the xenon lamp. The neon lamp factory description of the laser has a lifetime of 300 hours. However, due to different user conditions, the above time cannot be used as the sole basis for replacing the neon lamp. With the increase of the use time, the luminous efficiency of the Xenon lamp decreases, and the laser output also decreases. Many users increase the current of the laser power supply in order to obtain sufficient laser output, so that the Xenon lamp emits light, which accelerates the aging of the Xenon lamp. The formation of a vicious circle can sometimes lead to a phenomenon of an explosion of light. In order to prevent this from happening, we recommend that the user decide whether or not the neon lamp should be replaced as follows.
When replacing a new Xenon lamp, record the current value of the laser power meter at the time of normal marking as the standard current value. When the xenon lamp gradually ages, increase the laser power current output, but the ammeter value should not exceed 1.25 times the standard current value. For example, the current value of the new Xenon lamp is 20A. After using it for a period of time, if the current value cannot be marked after the current value is increased to 25A, the Xenon lamp should be replaced.
Laser engraving machine, fault
Failure 1: The laser intensity drops, markings are not clear enough