Digital Universal Hardness Tester - HBRV(M)-187.5D1

Model HBRV(M)-187.5 Digital Universal Hardness Tester

Description:

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