Important Considerations for the Daily Maintenance of Transmission Electron Microscopes
1. Turn on the device frequently and use it frequently, so that you can keep track of the instrument's working condition at any time. Pay attention to changes in the graph, light, sound, vacuum, air pressure, and power supply, adjust them in a timely manner, and keep records. Over time, you will definitely accumulate a lot of experience.
2. Pay attention to air humidity, prevent mice from scattering, maintain stable voltage, clean and dry gas, prevent small samples from falling in, especially fine particles and powders, and prevent collisions
3. Monitor whether the Freon in the electronic gun has decreased, monitor whether the oil in the mechanical pump has dropped below the horizontal line, frequently release air from the air compressor, regularly replace the water in the circulating water device, and maintain indoor humidity at 40-70% and temperature at 15-25 degrees. For the repair of electron microscopes, a high level of technical expertise is required. Firstly, one must have an interest in it, and secondly, one must have a keen understanding. This is mainly due to practical hands-on ability and the flexible application of advanced comprehensive knowledge. At the same time, it also relies on the accumulation of experience. It is best to be someone who studies electronics and has practical ability to manage the electron microscope.
4. The vacuum oil used for the rotary pump should be replaced once a year if possible. The speed of oil contamination is mainly related to the cleanliness and humidity of the laboratory. It's best to keep the electron microscope on even if you don't need it. Vacuumize it every day and turn on the circuit every day or two. During school holidays, it's best to keep it on for two days a week, especially in summer when the most malfunctions occur right after the end of summer vacation and the start of school.
