THUS – 250 Universal Hardness Tester
Main features
1.Brinell, Rockwell, Vickers three test methods, more hardness scales to choose.
2.Electronic electric loading, high precision sensor, with a unique closed loop control system.
3.Eyepiece structure with digital encoder, measure D1, D2 value, LCD directly display hardness value and D1, D2 value.
4.The test force is automatically corrected, each force is automatically compensated, and the precision of the force is increased by an order of magnitude.
5.It can be calibrated according to standard hardness blocks or length scales.
6.The test force can be corrected automatically by standard dynamometer.
7.Rockwell and Vickers hardness values can be converted.
8.Touch screen interface, easy to operate.
9.Automatic conversion of hardness according to GB /ASTM.
10.Set password protection setting parameters, more sample and test information.
11.The measurement data is saved in EXCEL format on USB disk, which is convenient for editing and processing.
12.Optional upgrade to add HVT, HBT two ruler.(depth method)
Technical parameters:
| Model | THUS-250 |
| Hardness scale | Brucellosis, Vickers, Rockwell, Superficial Rockwell |
| Force | 5 ~ 250 KGF |
| Brinell scale | HBW1/ : 5, 10, 30kgf
HBW2.5/ : 6.25, 15.625, 31.25, 62.5, 187.5 KGF 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
15N, 30N, 45N, 15T, 30T, 45T, 15W, 30W, 45W 15X, 30X, 45X, 15Y, 30Y, 45Y |
| Vickers scale | HV5, HV10, HV20, HV30, HV50, HV100, HV120kgf |
| Measurement system | The indentation image is collected by optical objective lens and CCD camera and measured in LCD interface.
Resolution: Length reading: 0.1 micron Depth reading: 0.2 micron |
| Magnification of objective lens | 2.5x, 5X (optional 10X, 20X) |
| Camera | 1280 by 1080 pixels, 1/2 inch |
| Data output | Computer display |
| Test | Automatic loading, load retention, unload |
| Indenter | Rockwell diamond: 120°
Rockwell ball head: 1/16 „, Vickers diamond: 136° Brinell ball indenter: 1mm, 2.5mm, 10mm (Rockwell ball indenter option 1/8 „, 1/4 „, 1/2 „) |
| Lighting system | LED light, ring light |
| Execution standard | GB/T230, GB/T231, GB/T4340, JJG144-1999, GB/T18449, ISO 6508, ASTM E10, ASTM E92, ASTM E18, ASTM E384, ASTM E103 |
| Total experimental effort to maintain the load time | 1-99 seconds |
| Sample size | Maximum height of sample: 220mm
Head – outer wall distance (throat) :200mm Cylindrical specimen: the minimum diameter of cylindrical specimen on the outer surface is 4mm; |
| Maximum test height | Lowe’s: 220, Brucellosis: 150mm |
| Distance from center of indenter to outer wall | 200mm |
| Dimension | 500*260*750mm |
| Weight | About 70 kg |
| Power | AC220V + 5%, 50 to 60 hz |
English 
Hungarian