How to select the appropriate test force when operating a microhardness tester from Zhongze Company?

When selecting the test force, our company's microhardness tester first requires the user to turn on the power of the hardness tester, and then rotate the test force change handwheel to select the appropriate test force. Our microhardness tester provides a variety of test forces for users to choose from to meet the hardness testing needs of different materials.