HBRV(M)-187.5D数字Brinell rockwell和vicke

Model HBRV(M)-187.5 digital Brinell ,rockwell and vickers hardness tester with intuitive LCD and singleclip control system, makes hardness testing be automately operated . The machine builted-in printer to record the main technical data of the entire testing process . 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 . The machine with high accuracy , eliminating the human operational error, is a mechanical and electrical integration also high-tech and advanced hardness testing equipment. 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. Main technical parameters The preliminery Test Force (N): 98 Total Test Force Vickers hardness test (N): 294,588,980 Rockwell hardness test (N): 588,980,1471 Brinell hardness test (N): 306,613,1839 Microscope magnification: 37.5 ×, 75 × Hardness readings 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 The maximum approving height of specimen (mm): 180 (Rockwell) 135 (Vickers, Brinell) Distance from indenter center to the mochine body (mm): 140 Dimension (mm): 463 × 215 × 700 Supply Voltage: AC220V Light Voltage: 5V/5W Weight (kg): 75 Hardness test range Rockwell Hardness Test (70-85) HRA (30-100) HRB (20-67) HRC Indication Accuracy: ± 1HR Indication Repeatability: 0.8HR Brinell Hardness Test (8-650) HB Indication accuracy (δ /%):± 2.5 shows the value of repeatability (Hcf /%): ≤ 3.0 Vickers hardness test (14-1000) HV Shows the value of precision (δ /%):± 2 shows the value of repeatability (Hcf /%): ≤ 2.5