Laser marking machine reduces your chances of being ransomed in five ways
Failure 1: The laser intensity drops, markings are not clear enough
1 whether the laser resonator changes; micro-tuning the resonator lens. Make the output light spot the best;
2 The acousto-optic crystal shift or the output power of the acousto-optic power supply is low; adjust the acousto-optic crystal position or increase the acousto-optic power supply operating current;
3 The laser beam entering the galvanometer is off-center: adjusting the laser;
4 If the current is adjusted to about 20A, the photoreceptor is not strong enough: the xenon lamp is aging and the new lamp is replaced.
Fault 2: Xenon lamp cannot be triggered (refer to NTP power supply manual)
1 Check all power cables;
2 Aging of high-pressure xenon lamp and replacement of xenon lamp.
Operation laser marking machine precautions
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 Do not allow the Q power supply to operate idling (ie, the Q power output is left floating);
3 Abnormal phenomenon occurs, first close the galvanometer switch and the key switch, and then check;
4 It is not allowed to start other components before the deuterium lamp is lighted, in order to prevent the high pressure from damaging the components.
5 Pay attention to the output of the laser power supply (anode) is suspended to prevent it from igniting or breaking down 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 Xenon Lamps
1 Turn off the water cooler, laser power supply.
2 Open the upper three chamber covers, take out the lamp or crystal to be replaced, replace it, and insert it. Install the chamber cover.
3 water cooling machine, laser power supply, the laser power supply current is adjusted 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.
4 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.
5 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, when the new Xenon lamp is marking, the current value is 20A. After using it for a period of time, if the current value cannot be marked after the current value is increased to 22.5A, the Xenon lamp should be replaced.