1.Model HBRVS-187.5 digital Brinell ,rockwell and vickers hardness tester with intuitive LCD and singleclip control system, makes hardness testing be automately operated. 2.The machine builted-in printer to record the main technical data of the entire testing process. 3.In addition to manual test platform, it compeletly achieve the realization of the test force imposing, removing, hardness value direct showing and other automated operation. 4.The machine with high accuracy , eliminating the human operational error, is a mechanical and electrical integration also high-tech and advanced hardness testing equipment. 5.Therefore, the test machine has high precision, easy operation, high sensitivity, convinient use, reliable variable-Dutch, showing the stable value ,which is widely used in factory workshops, laboratories, universities and research institutions. Description HBRVS-187.5 Initial test force 98N Total test force Brinell test(N): 306、613、1839 Rockwell test(N): 588、980、1471 Vickers test(N): 294、588、980 Hardness test range Brinell test (8-650)HB Indication accuracy (δ /%):±2.5 Indication Repeatability (Hcf /%): ≤3.0 Rockwell test (70-85)HRA (30-100)HRB (20-67)HRC Indication Accuracy: ± 1HR Indication Repeatability: 0.8HR Vickers test (14-1000)HV Indication accuracy (δ /%):± 2 Indication Repeatability (Hcf /%): ≤2.5 Microscope magnification 37.5×、75× Hardness reading Indication mode LCD Measuring eyepiece Automatic Digital encoder Minimum division of Hardness Indication (HR) 0.1 Total test foce loading keeping time (s) 1-60 Maximum height of specimen (mm) 180 (Rockwell) 135 (Vickers, Brinell) Depth of throat (mm) 140 Dimensions 463×215×700mm Power supply AC220V Light Voltage 5V/5W Weight 75KGS