Precautions when using high-frequency machines are essential to ensure safe and efficient operation. Here are some important points to consider:

1. Installation Preparation: When installing a high-frequency machine, ensure that the frame is securely fixed. Use rollers or cup holder feet (if available) to adjust the balance and prevent shaking.

2. Placement: Place the high-frequency machine in a well-ventilated room with dry air. Maintain a distance of at least 30 centimeters from the wall. Keep the workshop clean to prevent the accumulation of dust, which can pose a fire hazard.

3. Grounding: Proper grounding is crucial for safe operation. Ensure that the machine is connected to the correct ground configuration to maintain electrical safety.

4. Regular Maintenance: Regularly inspect the high-frequency machine for any signs of serious insulation damage, burns, or ruptures. If such issues are detected, replace the insulation immediately to prevent sparks and potential disruptions during operation.

5. Addressing Frequent Sparking: If sparks occur frequently, investigate and address the underlying causes. Common reasons include improper contact between the upper and lower molds during high-frequency output, heavy dust accumulation, or improper mold balance. Prompt inspection and maintenance are necessary to prevent further damage and ensure proper machine operation.

6. Maintenance Suspension: If the high-frequency machine will be unused for an extended period, clean both the interior and exterior, remove dust using an air gun, and securely package the machine. Store it in a dry environment to maintain its condition.

7. Startup Precautions: When powering on the high-frequency machine, ensure that the fan is functioning properly. The vacuum electronic tube requires heat treatment, so any fan malfunctions should be promptly repaired to prevent damage to the tube and ensure normal operation.

8. Material Usage: Avoid welding materials with water, dust, or other contaminants. The welding area of the materials should be thick and uniform to minimize the risk of sparking.

9. Heat Considerations: High-frequency machines and vacuum electronic tubes generate significant heat. Avoid placing the machine next to high-temperature heating devices and ensure it is not exposed to direct sunlight, as this can affect the cooling of the vacuum electronic tube.

10. Safety Measures: Do not touch the pole output (upper mold), multimeters, testing instruments, or other low-voltage devices while the high-frequency waves are being output. Instead, measure the pole output directly to avoid accidents.

By following these precautions and maintaining regular observation, you can prevent accidents and protect the high-frequency machine from damage, ensuring safe and efficient operation.