High-precision hand-held instrument engineered for demanding production and field conditions, delivering reliable non-destructive testing capabilities. Designed for assessing production quality, it finds utility across various industries such as metallurgy, mechanical engineering, aircraft, shipbuilding, atomic industry, and oil and gas.
Operating on the Leeb method, this hardness tester provides robust control over the hardness of a wide range of materials, including:
- All basic types of metals and alloys without necessitating additional calibrations (such as structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys, as well as alloys of nonferrous metals, cast iron, aluminum, bronze, and brass).
- Components with surface hardening and high-frequency current hardening.
- Complex-shaped items.
- Heavy and large items with rough surfaces.
Operational advantages
- Wide range of controlled metals and alloys.
- Low sensitivity to surface curvature and roughness.
- Monitoring of hardness changes along the surface.
- Stable measurements independent of force and time of probe pressing.
- Material identification capability in blank production.
- Control of “volumetric” hardness.
Features
- Impact-, dust-, and water-proof housing.
- Bright color display for operation in sub-zero temperatures, remaining visible under varying lighting conditions.
- Signalization of threshold readings exceedance.
- Unique system for statistical data processing and averaging of readings.
- Swift adjustment of readings and programming of additional calibrations to basic scales using two or fewer standard blocks.
- Flexible device memory for recording and analyzing readings.
- Programming of additional scales calibrations by two or fewer standard test blocks.
- Rapid programming of additional scales using two to ten standard test blocks.
Probes characteristics
| Photo | Probe Type | Weight/thickness/ surface roughness of the article under check |
Length/ |
Application |
 |
«D» | 3kg/6mm/Ra 3,2 | 138/21mm | Solving of main hardness testing tasks with surface roughness less than 3.2Ra |
| «E» | 3kg/6mm/Ra 3,2 | 138/21mm | Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness | |
 |
«G» | 8kg/55mm/Ra 7,6 | 200/29mm | Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2Ra |
Exploitation
Exploitation requirements
- Items heavier than 5 kg and thicker than 6 mm require no additional preparation.
- Hard items (e.g., tubes) with an anticipated hardness of 90 to 250 HB and thickness greater than 4 mm need no additional preparation.
- Other items should be affixed on a support plate using fixing paste.
- Measurement accuracy is contingent upon the roughness of the controlled surface, which depends on the probe.
Hardness testers modes
| Measurement mode | Readings | Using |
| By basic scales | Basic hardness units (HRC, HB, HV) | Hardness testing of the bulk of products |
| By additional calibrations to basic scales | By HRA, HRB, HSD scales and ultimate tensile strength | Hardness testing of high-alloy steels, special cast iron and nonferrous metals |
| By additional scales | Scales are programmed by the user | Special problems solving |
The statistical parameters used for processing measurements
- Maximum, minimum, and mean values.
- Standard deviation from the mean.
- Average deviation from user-set values.
- Number of results outside the upper/lower limit range specified by the user.
- Maximum deviation from the upper/lower border.
- Automatic elimination of erroneous results.
- Comparison of measurement results in series using comparison charts displayed on the hardness tester.
Technical specifications
| Characteristic | Values |
| Relative average error at regular calibration | 3-5% |
| Hardness testing ranges: | |
| Rockwell C | 20-70 HRC |
| Brinell | 90-450 HB |
| Vickers | 240-940 HV |
| Spot diameter on the item surface for probe positioning | From 7mm |
| Quantity of possible additional scales calibrations | 5 for each scale |
| Quantity of additional scales | 3 |
| Duration of the measurement | 2 seconds |
| Quantity of measurements for average reading calculation | 1-99 |
| Memory capacity | 12 400 readings |
| Maximum quantity of named blocks of readings generated in memory | 100 |
| Signalization about threshold exceeding | Provided |
| PC connection | USB |
| Power supply | Li-ion accumulation battery |
| Dimensions of hardness tester electronic unit | 121x69x41mm |
| Weight of electronic unit | 0.3kg |
| Weight of D-probe | 0.15kg |
| Operating temperature range | -15…+35°C |
| Warranty | 1 year |
Accessories
- Replaceable probes of various constructions and impact forces.
- Adapter “Z3” for simplified probe positioning on complex surfaces.
- Connection cables.
Probe D with connector
Probe E
Probe D
