Hardness Tester

Hardness testers use a differential-depth method. The test consists of placing an on the material, then applying a minor load, which establishes the zero position. After the minor load, a major load is applied and then removed while the minor load is maintained.

Hardness Tester Calibration Calibrating Most Types and Models. Hardness Tester Calibration should be performed on a periodic basis to verify that the accuracy of the instrument is within the manufacturer`s stated tolerances for the grade or model. As a hardness tester repeatedly measures the relative resistance of materials to denting, bending, or scratching, it can become misaligned. hardness tester is a compact device and occupies minimal bench space. A hardness tester commonly constitutes a tester assembly joined to a frame assembly. The tester assembly is made up of a tester enclosure that supports a motor that drives to connect with a load unit and an indentor.