HBRVS-250DU Universal Hardness Tester
Product description:
Main features ： 1.There are three kinds of test methods: Brinell, Rockwell and Vickers. 2.Electric loading, high precision sensor, with a unique closed-loop control system 3. Eyepiece structure with digital encoder, measure D1, D2 value,
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1. There are three kinds of test methods: Brinell, Rockwell and Vickers.
2. Electric loading, high precision sensor, with a unique closed-loop control system
3. Eyepiece structure with digital encoder, measure D1, D2 value, LCD display hardness value and D1, D2 value directly.
4. The test force is automatically corrected, each force is automatically compensated, and the accuracy of the force is improved by an order of magnitude.
5. Can be calibrated according to the standard hardness block or length scale.
6. Test force can be automatically corrected by standard dynamometer
7. The hardness value of rockwell and vickers can be converted.
8. Touch screen, easy to operate.
9. According to the national standard /ASTM hardness automatic conversion.
10. Set password protection setting parameters, more sample and test information.
11. The measurement data U disk is saved in EXCEL format for easy editing and processing.
12. You can choose to upgrade and add two rulers, HVT and HBT.
Technical specification：
| Model | THUS-250 |
| Hardness scale | Brinell, Vickers, Rockwell |
| Test force | 5～250kgf |
| Brinell scale |
HBW1/：5、10、30kgf HBW2.5/：6.25、15.625、31.25、62.5、187.5kgf HBW5/：25、62.5、125、250kgf HBW10/：100、250kgf |
| Rockwell scale | A, B, C, D, E, F, G, H, K, L, M, P, R, S, V |
| Vickers scale | HV5、HV10、HV20、HV30、HV50、HV100、HV120kgf |
| Testing system |
The indentation image is collected by optical objective lens and CCD camera and measured in LCD interface： Resolution: The length of reading：0.1μm The depth of reading：0.2 μm |
| Objective magnification | 2.5X、 5X( Optional 10X、20X） |
| Camera | 1280*1080 pixel, 1/2 inch |
| Data display | Computer display data |
| Testing | Automatic loading, dwell, unloading |
| Indenters |
Diamond Rockwell indeneter: 120° Rockwell ball indenter: 1/16", Diamond Vickers indenter: 136° Brinell ball indenter: 1mm, 2.5mm, 5mm, 10mm （Rockwell ball indenter options： 1/8", 1/4", 1/2"） |
| Lighting system | LED light ，ring light |
| 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 |
| Total test force dwell time | 1 - 99 秒 |
| Sample specification |
Max height of sample: 220mm Indenetr-outer wall（throat）:200mm Cylindrical specimen：the minimum diameter of cylindrical specimens on the outer surface is 4mm； |
| Max height of specimen | Rockwell：220、Brinell Vickers：150mm |
| Distance from center of head to outer wall | 200mm |
| Dimension | 560*350*800mm |
| Weight | About 70Kg |
| Power supply | AC220V+5%，50-60Hz |
Jinan Hensgrand Instrument Co., Ltd.
+86-15910081986 
+86-15910081986 
4915,West jingshi Road,jinan 250012,PR CHINA.