Turn off the water cooler and the laser power.
The factory instruction of krypton lamp in the laser indicates that the service life of krypton lamp is 300 hours. However, due to different service conditions of users, the above time can not be used as the only basis for replacing krypton lamp. With the increase of service time, the luminous efficiency of krypton lamp decreases, and the laser output also weakens. In order to obtain sufficient laser output, many users increase the current of laser power supply to enhance the luminescence of krypton lamp, which accelerates the aging of krypton lamp, forms a vicious circle, and sometimes leads to lamp explosion. In order to prevent this phenomenon, we recommend the user to decide whether to replace the krypton lamp according to the following method.
When a new krypton lamp is replaced, record the laser power ammeter value during normal marking as the standard current value.
When the krypton lamp is aging gradually, increase the current output of the laser power supply, but the ammeter value shall not exceed 1.25 times the standard current value.
For example, when marking with a new krypton lamp, the current value is 20A. After using it for a period of time, if the marking still fails after increasing the current value to 22.5A, the krypton lamp should be replaced.