Winter is a high-incidence season of laser tube malfunction due to freezing, condensation, and frosting. To ensure that laser tubes work properly, we have the following suggestions for users of our products:

1. Check the connection and protection of the high- and low-voltage cables prior to the use of laser tubes. Poor contact or damage of the cables can lead to sparking, breakdown and air leakage of the laser tubes. To avoid such situations, ensure that the connections of high- and low-voltage cables are strong. The high-voltage cable connector shall be protected by a high-voltage protective cap, fixed on the tube body,and kept away from metal materials.
2. Regularly inspect and clean the water circulation devices, including chillers, water tanks, water pipes, and water protection switches of the laser machines to avoid blockage of the water-cooling systems. Blockage of the water-cooling systems may cause insufficient water flow or lack of water inside the laser tubes, resulting in malfunctions of laser tubes such as breakage of the outer tube, fracture of the inner tube, unstable working status and abnormal laser beam.
3. For laser machines with chillers, the temperature of chillers shall be controlled within a suitable temperature range. Significant difference between the chiller temperature and room temperature may cause condensation and frosting on the ceramic water-cooling caps, tube bodies and lenses, resulting in malfunctions of laser tubes such as breakage of the tubes, sparking at the high-voltage end, fracture of the lenses and abnormal laser beam.
4. Check the important parts of laser tubes such as water-cooling tubes, water pipes and lenses prior to the use of laser tubes. Ensure there is no freezing, frosting and clogging on those parts to avoid breakage of the tubes and fracture of the lenses when the laser tubes are turned on.
5. When the laser tubes are idle, the water in the water-cooling tubes of the laser shall be drawn off to prevent the laser tubes from freezing and cracking caused by significant temperature drop. In addition, water remained in the water-cooling system for a long period may result in dirt or impurities to block the water-cooling tubes of the laser tubes and the water circulation systems of the laser machines.
6. When the temperature drops to 0°C or below, an appropriate amount of antifreeze shall be added to the cooling water (e.g., antifreeze for automobiles). See "Instructions for the Use of CO₂ Laser Tube Antifreeze" for specifications.
7. Winter is the peak period of electricity load. The external power supplies of laser tubes shall be separated from other equipment with large electricity load such as air conditioners. Sharing cables with equipment with large electricity load may lead to unstable power supply, resulting in malfunctions such as unstable laser power and abnormal laser beam.