Failure 1: laser intensity decreased, the mark is not clear enough
Solution method:
1 laser resonant cavity is changed; fine tuned resonant cavity lens. The output spot is the best;
2 the optical crystal shift or the power output energy of the sound and light power is low; the position of the optical crystal and the working current of the optical power supply is adjusted;
3 to enter the vibration mirror laser deviation Center: adjusting laser;
4 if the current 20A is still strong enough to light: krypton lamp aging, replacement lamps.

Fault 2: krypton lamp can trigger (NTP power reference manual)

Solution method:
1 check all power connections;
2 high pressure krypton lamp aging, krypton lamp replacement.
Operating laser marking machine attention
1 no water or water cycle is strictly prohibited to start the laser power supply and Q power supply;
2 does not allow the Q power supply idle work (that is, the power supply Q power output is suspended);
3 abnormal phenomenon, the first to turn off the mirror switch and the key switch, and then check;
4 are not allowed to start other components in the krypton lamp lit, to prevent the high pressure into the damaged components;
5 note that the laser power output terminal (anode) to prevent the hanging, and other electrical sparking;

6 keep inner circulating water clean. Clean water tank and clean water or pure water regularly.

With the replacement using krypton lamp
1 shut down water cooling machine, laser power supply.
2 open the upper three cavity cover, remove to replace the lamp or crystal, after replacement, put on the cavity cover.
3 boiling water cooler, laser power, laser power supply current to about A (15~20). 1 small pieces of wood or black paper placed between the front and the diaphragm beam expander, should see a light spot formed by laser ablation. If not, adjust the three knob on the front of the diaphragm holder slightly until the spot appears.
4 laser debugging out, should be repeated before the adjustment of the three knob of the diaphragm frame to make the strongest spot, such as laser too strong, too high brightness can not be observed, can reduce the power supply current.
5 off laser power supply.
Special note: the replacement of krypton lamp time
Laser krypton lamp factory shows that the service life of the krypton lamp for 300 hours, but due to the users in different conditions, the time and not as the sole basis of krypton lamp replacement. With the increase in the use of time, krypton lamp luminous efficiency decline, also weakens the laser output, many users in order to obtain enough laser output, increase current laser power supply, the krypton lamp luminescence enhancement, which makes krypton lamp accelerated aging, form a vicious circle, sometimes leads to deep fried lamp phenomenon. In order to prevent the occurrence of this phenomenon, we recommend that users according to the following method to decide whether to replace the krypton lamp.
When put on a new krypton lamp, laser power supply current meter records under normal numerical marking, as the standard current value.
When krypton lamp aging, increase the current output laser power, but the current meter should not exceed 1.25 times the numerical value of the current standard.
For example, when marking the new krypton lamp current value of 20a, use after a period of time, if the current value of adjustable high to the 22.5A still can't normal marking, replacing the krypton lamp.