Static electricity has always been with us as a ghostly existence. It has no shadow and no trace, but it often plays the role of "killer", causing electric fire devices and flammable and explosive materials to ignite and explode unexpectedly. . Everyone who is engaged in high-risk work knows that the role of static electricity can be an angel, but a little carelessness can be one and it may destroy everything. We need electrostatic testers to detect the possible coefficients of danger.
In the generation of static electricity, when two objects are in contact and the distance between them is less than 25x10-8 cm, electron transfer will occur, and two layers of charges of equal size and opposite polarity will appear on both sides of the dividing line. Static electricity can be generated when the cosmetic objects are quickly separated.
Processes that are prone to generate and accumulate dangerous static electricity:
1. Large area friction in solid position.
2. High-resistivity liquid flows in the pipeline at high speed, the liquid is ejected from the nozzle, and the liquid is injected into the container.
3. The process of crushing and grinding of solid materials; the process of sieving, filtering, conveying and drying powder materials; telling the movement of suspended dust.
4. Stir various high resistivity materials in a mixer.
5. Wait for other forms of static electricity.
Knowing how static electricity is generated, the solutions used for different levels of electrostatic problems are not the same. For different applications, accurately determining the most serious parts of electrostatic problems and the magnitude of electrostatic potentials are crucial for researching and solving electrostatic problems. important.
So, from the many types of test instruments on the market, how to choose a static tester that is most suitable for my use and teaches you a few practical tips:
A precise and professional static tester has strict technical requirements for its producer. Without a professional technical team, the performance of the meter will be greatly reduced. The range of the test instrument In film applications, the static electricity at the winding and unwinding area can even reach 100,000 volts. At this time, you choose an electrostatic tester with a range of only 30,000 volts. How to measure it is 30,000 volts, which is accurate. Sex is completely absent. Accuracy of test instruments For any test instrument, accuracy is one of the most important indicators. Without a high standard accuracy, how do we confirm the accuracy of our measured data. For some enterprises whose production environment is in explosion-proof areas, the safety requirements for static testers are also higher at this time, and a qualified explosion-proof static tester must be considered.