THUS—187.5 Universal Hardness tester
- With Brinell, Rockwell and Vickers test methods, more hardness scale selection.
- Electric loading, high precision sensor, with a unique closed-loop control system
- Eyepiece structure with digital encoder, measure D1, D2 value, LCD display hardness value and D1, D2 value directly.
- The test force is automatically corrected, each force is automatically compensated, and the accuracy of the force is improved by an order of magnitude.
- Can be calibrated according to the standard hardness block or length scale.
- Test force can be automatically corrected by standard dynamometer
- The hardness value of rockwell and vickers can be converted.
- Touch screen, easy to operate.
- According to the national standard /ASTM hardness automatic conversion.
- Set password protection for more sample and test information.
- The measurement data U disk is saved in EXCEL format for easy editing and processing.
Technical specification：
| Model | THUS-187.5 |
| Hardness scale | Brinell, Vickers, Rockwell |
| Test force | 3～187.5kgf |
| Brinell scale | HBW2.5/：6.25、15.625、31.25、62.5、187.5kgf
HBW5/：25、62.5、125kgf HBW10/：100kgf |
| Rockwell scale | 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 |
| Vickers scale | HV3、HV5、HV10、HV20、HV30、HV50、HV100kgf |
| Measurement system | Indentation image is collected by optical objective lens and CCD camera and measured in LCD interface.
Resolution ratio： Length reading：0.1μm Depth reading：0.2μm |
| Objective magnification | 5X，10X（option） |
| Camera | 1280*1080 , 1/2 inch |
| Data display | computer |
| Measurement | Automatic loading, dwell, unloading |
| Indenter | Diamond Rockwell indenter: 120°
Rockwell ball indenter: 1/16“ Diamond Vickers indenter: 136° Brinell ball indenter: 2.5mm, 5mm, 10mm |
| Light system | LED，ring light |
| Carried standard | GB/T230、GB/T231、GB/T4340、JJG144-1999、GB/T18449、ISO 6508、 ASTM E 10、 ASTM E92、 ASTM E18、 ASTM E384、 ASTM E103 |
| Dwell time | 1 – 99 s |
| Specimen | Max height of specimen: 220mm
Indenter-outer wall distance:200mm Cylindrical specimen：Minimum diameter of cylindrical specimen on outer surface is 4mm； |
| Max height of specimen | Rockwell：220 Brinell, Vickers：170mm |
| Indenter-outer wall distance | 200mm |
| Dimension | 500*260*750mm |
| Weight | About 70Kg |
| Power supply | AC220V+5%，50-60Hz |
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