HBRVU-187.5型布洛維光學硬度計采用了旋轉試驗力變換機構和光學測量指示系統，在機體上裝有壓痕測量裝置。本機具有多種試驗力和多種壓頭，用于測定金屬材料或試件的布氏、洛氏、維氏硬度，是一臺可以用不同試驗方法來測量材料硬度的多用硬度計。

    該機廣泛適用于黑色金屬、有色金屬和硬質合金及滲碳層與化學處理層的硬度測定。被廣泛用于工廠車間、實驗室大專院校和科研機構。

    Model HBRVU-187.5 Brinell Rockwell &Vickers Optical Hardness Tester carries a series of rotating testing force and Optical measurement indication system, and owns pressure trace measuring device. It fits different types of testing force and indenter, which are usually used to measure the Brinell Rockwell &Vickers hardness of metal materials or spicemen. In a word, it is a multipurpose durometer which can measure hardness by various of testing means.

    This device is widely used in the testing of black metal, non-ferrous metal, carbide alloy, acieration tier and chemical treatment tier, and normally used in factory workshops, labs, universities and colleges, and institution for scientific research.   

  

主要技術參數		Main technical parameters
初試驗力(N)：98		Preliminary test force(N)：98
總試驗力		Total test force
維氏硬度試驗(N)：294、588、980		Vickers hardness test(N)：294、588、980
洛氏硬度試驗（N）：588、980、1471		Rockwell hardness test(N):588、980、1471
布氏硬度試驗(N)：306、613、1839		Brinell Hardness test(N):306、613、1839
顯微鏡放大倍率：37.5×、75×		magnification of microscope：37.5×、75×
測微鼓輪最小分度值:		Measure tiny drum wheel minimum scale division value：
37.5×時為0.004毫米		0.004mm for 37.5×
75×時為0.002毫米		0.002mm for 75×
試件允許高度(mm)：180		Max height of speciments(mm)：180
壓頭中心到機身距離(mm)：200		Distance from indeneter, s center to outerwall(mm)：200
硬度計外形尺寸(mm)：560×260×760		Machine size(mm)：560×260×760
電源電壓：AC220V		Power supply：AC220V
儀器重量(kg)：90		Weight(kg)：90
硬度測試范圍		Degree of hardness test seope
洛氏硬度試驗		Rockwell hardness test
(70-85)HRA		(70-85)HRA
(30-100)HRB		(30-100)HRB
(20-67)HRC		(20-67)HRC
示值精度：±1HR		Show value accuracy：±1HR
布氏硬度試驗		Vickers Hardness test
(4-450)HB		(4-450)HB
示值精度：P≥1839N ±3%   P＜1839N ±4%		Show value accuracy：P≥1839N ±3%   P＜1839N ±4%
維氏硬度試驗		Vickers hardness test
(14-1000)HV		(14-1000)HV
示值精度：±3%		Show value accuracy：±3%