In response to such a question, we answer from two aspects, the first is, does the customer want to know how to measure the quality of the quality? This generally depends on the use of the environment, the correct selection is the most critical, I listed the principles of various environmental selection heating tubes, so that the heating tube is not easy to break.
Measure the terminals at both ends of the electric heating tube with a small resistance file, the resistance value should be below hundreds of ohms, the resistance of the electric heating tube with high power will be smaller, the energy is through, but the resistance value is large, the electric heating tube may also have been burned.
Then use the high resistance of the meter to measure between the terminal pile head and the heating tube shell, the resistance should be infinite, if the resistance value is only tens of kiloohms, there is an electric heating tube insulation has been broken, there will be a risk of leakage when used, such a heating tube is best not to be used.
