DHBRV-250T Universal Hardness Tester has already upgraded with Touch Screen, it is the state-of-the-art automatically hardness testing equipment specially designed for improving the working efficiency of our customers as its automatically design. After adjusting the focal length, the objective lens and indenter can be switched automatically. And the testing force can load, dwell and unload automatically. Then the objective lens will automatically return to the initial focus state, and the length of indentation can be measured directly.
Using Scopes:
Surface hardened steel, hardened steel, alloy steel, various QT and annealed steel,non-ferrous metal, hardened steel sheet, also suitable for soft metals, surface treatment metals and chemical processing metals.
- It can be used to measure the hardness of Brinell, Rockwell, Superficial Rockwell and Vickers;
Closed-loop sensor loading control system with high precision and stability;
- Automatic loading and unloading;
- Automatic pre-loading when measure the hardness of Rockwell;
- Automatic measurements for the Rockwell, Brinell and Vickers values;
- The software provides the functions of hardness conversion, upper and lower limits settings and hardness rectification;
- Permanent storage of testing results for database view;
Automatic generation of custom-made inspection report;
RS232 data interface, suitable to connect to PC.
Model | DHBRV-250T |
Loading Method | Sensor loading, closed-loop control Driving method: high-precision ball screw shaft Force measuring method: high precision pressure sensor |
Hardness scales | Rockwell/Superficial Rockwell, Brinell, Vickers, HVT, HBT and H Ball indentation |
Testing load | 2.5-250kg |
Measuring range of Brinell | HB2.5/:6.25,15.625,31.25,62.5,187.5kgf HB5/:25,62.5,125,250kgf HB10/:100,250kgf |
Measuring range of Rockwell | A, B, C, D, E, F, G, H, K, L, M, P, R, S, V 15N, 30N, 45N, 15T, 30T, 45T 15W, 30W, 45W 15X, 30X, 45X 15Y, 30Y, 45Y |
Measuring range of Vickers | HV3,HV5,HV10,HV20,HV30,HV50,HV100,HV120kgf |
Measuring system | Through optical objective lens and CCD camera to collect indentation image and measure in the interface of LCD. Resolution: Length reading:0.1 micron meter Depth reading:0.2 micron meter |
Objective magnifications | 2.5x,5x ,10X |
Camera | 1280*1080 pixel, 1/2’’ |
Data display | By computer to display data |
Measurement | Automatic loading, dwell and unloading |
Indenters | Rockwell diamond indenter: 120° Rockwell ball indenter: 1/16“, 1/8“, 1/4“, 1/2“ Vickers diamond indenter: 136° Brinell ball indenter: 1mm, 2.5mm, 5mm, 10mm Part of them are optional accessories. |
Dwell time | 1 - 99 s |
Illumination system | LED lamp, annular lamp |
Standard conforms to | GB/T230,GB/T231,GB/T4340,JJG144-1999,GB/T18449,ISO 6508, ASTM E 10, ASTM E92, ASTM E18, ASTM E384, ASTM E103 |
Specimen specifications | Max. height of specimen: 300mm Max. width of specimen:165mm Cylinder specimen:min. diameter of outer surface is 3mm; |
Dimensions | 290mm x 520mm x 900mm (L x W x H) |
Weight | 76kg |
Power supply | 220V AC, 50Hz |
Standard Packing List:
No. | Items | Qty. |
1 | Main unit | 1 unit |
2 | Vickers indenter | 1pc |
3 | Rockwell diamond indenter | 1pc |
4 | Camera | 1pc |
5 | Hardness test blocks | 5pcs |
6 | Brand computer | 1 unit |
7 | Brinell indenters Dia. 1.0,2.5,5mm,10mm harden alloy ball | Each 1pc |
8 | Rockwell ball indenters: 1/16“, 1/8“, 1/4“, 1/2 | Each 1pc |
9 | Inner & outer lamps | Each 1 set |
10 | Large, middle and V-shape test tables | Each 1pc |
11 | Power cord | 1pc |
12 | Objective lens 2.5x ,5x, 10X | Each 1pc |
13 | Sliding test table | 1pc |
14 | Instruction manual | 1pc |
Optional Accessories:
