Usage Range The Brinell hardness tester that shows the largest indentation
among all the hardness tests is able to reflect the comprehensive features of the material , and the test is
unaffected by the organization micro-dioptre and the compositional unevenness of the speciment ;and hence it is
a hardness testing with high precision. The Brinell hardness test is widely used in such industrial fields
as metallurgy , forging , casting , unhardened steel and nonferrous metals industries, as well as in the
laboratories, universities , colleges and s-cientific research institutes. Mains Features DHB-3000 Electronic Brinell Hardness Tester is a unified product
combining the precise mechanical structure with the computer control by means of the mechanical and electrical
circuit system, and so it is the more advanced brinell hardness tester in today’s world. The instrument
adopts the motorized test force application without weight blocks, and uses 0.5‰ accuracy compression sensor to
feedback the information and the CPU control system to automatically compensate the test force lost
during the testing. The test force and the load dwell time can be directly set pressing the selected keys
on the touch-keyboard, with reliable repetition, precise reading and easy operation. Main Parameters Testing range:( 8～650)HBW | Test Force:612.9N(62.5Kgf), 980N(100Kgf), 1226N(125Kgf),
1839N(187.5Kgf), 2452N(250Kgf), 4900N(500Kgf), 7355N(750Kgf),
9800N(1000Kgf), 14700N(1500Kgf), 29400N(3000kgf) | Accuracy of Displayed Hardness Value | Hardness Range(HBW) | Max tolerance％ | Repetition％ | ≤ 125 | ± 3 | ≤ 3.5 | 125＜HBW≤220 | ± 2.5 | ≤ 3.0 | ＞ 220 | ± 2.0 | ≤ 2.5 | Max, Height of the speciment: 220mm | Max Distance from the indenter center to the instrument panel:
135mm | Magnification of the microscope: 20X | Min Reading Grade of the Drum wheel of the microscope: 0.005mm | Power supply and Voltage: AC220V/50-60Hz | Main Accessories | Tables:Large, Small and V-shaped each | Hard Alloyed Steel Ball Indenters: ￠2.5mm, ￠5mm, and ￠10mm each. | One Microscope: 20X | Two Standard Hardness Blocks |
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