Mitech CO.,LTD.
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This hardness tester is designed for testing metallic materials, the hardness of which ranges from very low to very high values. Hardness testing can be performed directly on-site and in any position. Typical applications are large, heavy workpieces which could only be transported to a hardness testing machine in a laboratory with great difficulty. It is especially suitable for applications in which standard indentation hardness testing is either not feasible or not economical.
This hardness tester comprises an indicating device and an impact device. It is based on the rebound hardness testing method according to Leeb. It is for testing the hardness of all material surfaces over a large range of hardness quickly and independently.
Wide measuring range
Based on the principle of Leeb rebound testing method, it can measure the hardness value of all metallic materials. It can also measure the tensile strength of many metallic materials.
Impact device
Support seven types of impact device. Type of impact device automatically identified.
Impact direction correction
Impact direction automatically detected and corrected (after base calibration, except type G) , high measuring accuracy in every impact direction, convenient measurement in any position.
Scale
Integrated conversion of the measured values to other popular hardness scales, e.g. HRC (Rockwell), HRB, HV (Vickers), HB (Brinell), HS (Shore), HL (Leeb), Rm (Tensile strength for steel).
Calibration
Base calibration function and multi-point calibration function.
HLX conversion function
HLX conversion function to convert HLD values to HLC, HLG, HLDL and HLD+15, and vice versa.
Tolerance limit
Upper and lower limit can be set. It will alarm automatically when the test value exceeding the limit.
Display
Color TFT display (320×240 TFT LCD) with adjustable backlight, allow the user to work at worksites with low visibility.
Memory
Integrated memory – Non-volatile, 500 series of measured values including each individual measured value, mean value, testing date, impact direction, impact times, material and hardness scale etc..
Power saving
Two AA size alkaline batteries as the power source. Continuous operating period of no less than 100 hours (default brightness setting). Display Standby and Auto Power Off functions to save power.
Real time clock
The instrument clock keeps running tracking the time.
Communication
USB communication port. Online transfer of the measured data to PC or laptop via USB.
Printing
Built in Bluetooth module. Print test report wirelessly.
Robust design
Robust design allow the user to work at dusty worksites .
The error and repeatability of the test value see the following table.
| No. | Impact Device | Hardness value of the test block | Measuring accuracy | Measuring Repeatability |
| 1 | D | 760±30HLD 530±40HLD | ±6 HLD ±10 HLD | 6 HLD 10 HLD |
| 2 | DC | 760±30HLDC 530±40HLDC | ±6 HLDC ±10 HLDC | 6 HLD 10 HLD |
| 3 | DL | 878±30HLDL 736±40HLDL | ±12 HLDL | 12 HLDL |
| 4 | D+15 | 766±30HLD+15 544±40HLD+15 | ±12 HLD+15 | 12 HLD+15 |
| 5 | G | 590±40HLG 500±40HLG | ±12 HLG | 12 HLG |
| 6 | E | 725±30HLE 508±40HLE | ±12 HLE | 12 HLE |
| 7 | C | 822±30HLC 590±40HLC | ±12 HLC | 12 HLC |
Dimensions:120mm×67mm×31mm.