Precision

Micro & Macro Hardness Tester - Clemex CMT.HD

Intelligent Precision

Precise Imaging Using a high-resolution digital camera, Clemex CMT.HD acquires images with a resolution of 1.3 megapixels; that ’s 400% more than the competition. Additionally, indent diagonals are measured from tip to tip using dimensional calibration based on a high precision stage micrometer - unlike subjective calibration methods used by some systems. Clemex CMT.HD produces the sharpest images and finest details ever seen in microhardness testing. This means precise and repeatable results. Repeatable Measurements With software controlled focus (0.1 micron per step), shading correction, and DC regulated light source, objective and reproducible results are obtained regardless of the number of indents measured. The graph to the right demonstrates a run on a 703 HV Test Block which shows a 5 HV variation for 25 consecutive measurements on the same indent, each preceded by an autofocus. This variation of less than 1% is well within the ASTM and ISO requirements, and is by far narrower than the range obtained by operators using a filar micrometer. Software Illumination Control Equipped with a unique software controlled illumination, Clemex CMT.HD keeps image brightness levels constant on all objectives, any magnification. Samples are always properly illuminated. Illumination at 25x Illumination at 100x Illumination at 400x Background-Independent Detection Clemex CMT.HD ’s native hardness measurements are in HV or HK.Conversion tables for HRA, HRB, and HRC scales are in compliance with ASTM E-140 standards. Up to six additional custom conversion tables can be defined. Case depths are calculated automatically by selecting a case hardness value. A total of 4 case depths can be displayed simultaneously on the same graph. Etched Sample Roughly polished sample Clean sample