METERDI Leeb hardness tester MR-LH70 is a portable device that measures the hardness of metals using the rebound method. It calculates hardness based on the ratio of the impact and rebound velocities of a test body. The device is widely used because it’s portable, efficient, and easy to operate, making it a favorite in industries like manufacturing, automotive, and construction.
METERDI Portable Leeb Hardness Tester MR-LH70 is specially designed for express control of the hardness of metal products. It’s a versatile solution for accurate portable hardness testing and an essential tool for claims work. This device is perfect when other devices fail to provide sufficient accuracy in hardness measurements.
The MR-LH70 portable hardness tester operates on a dynamic sensor principle, making it one of the most versatile and effective solutions for quality control. Whether you need to check incoming materials, monitor in-process work, or verify outgoing products, this device ensures precision and reliability.
METERDI Leeb Hardness Tester MR-LH70 combines accuracy, reliability, and portability, making it the ultimate choice for all your hardness testing needs. Whether in a laboratory, workshop, or outdoor environment, trust the MR-LH70 to deliver unmatched performance.
Features
Applications
The MR-LH70 is ideal for various tasks, including:
| Measurement Range for Main Scales | |
| Rockwell | 20–70 HRC* |
| Brinell | 20–650 HB* |
| Vickers | 230–940 HV* |
| Note: | The hardness tester can be recalibrated across broader and individual ranges when reference samples with corresponding hardness values are available. |
| Measurement Error | Subject to following recommendations |
| Standard Requirements | ISO and ASTM Standards |
| Rockwell | ±0.2 HRC (recommended) / ±2 HRC (ISO/ASTM) |
| Brinell | |
| 90–150 HB | ±3 HB (recommended) / ±10 HB (ISO/ASTM) |
| 150–300 HB | ±3 HB (recommended) / ±15 HB (ISO/ASTM) |
| 300–450 HB | ±3 HB (recommended) / ±20 HB (ISO/ASTM) |
| Vickers | |
| 240–500 HV | ±3 HV (recommended) / ±15 HV (ISO/ASTM) |
| 500–800 HV | ±3 HV (recommended) / ±20 HV (ISO/ASTM) |
| 800–940 HV | ±3 HV (recommended) / ±25 HV (ISO/ASTM) |
| Accuracy Recommendations | |
| Roughness Requirements | Adhere to gauge or product roughness guidelines; follow the user manual. |
| Recommended Roughness | |
| Type “D” (Dynamic Sensor) | 3.2 Ra |
| Type “G” (Dynamic Sensor) | 7.2 Ra |
| Surface Requirements | |
| Diameter for Sensor Installation | From 14 mm / 0.551″ on a flat surface |
| Materials | Pre-calibrated for steel, cast iron, stainless steel, aluminum, bronze, brass, and copper. Additional materials available for calibration. |
| Calculations | |
| Average Value | Calculated from 1–20 measurements |
| Additional Calculations | Minimum, maximum, and average values; Algorithm for rejecting incorrect measurements |
| Features | |
| Algorithm for False Values | Yes |
| Scale Conversion | Conversion into various hardness scales |
| Programmable Scales | Support for additional scales beyond 100 |
| Graph Construction | Includes all points used in the mean value calculation |
| Language Support | Ukrainian, English, Russian |
| Memory Capacity | 128 MB (stores over 1,000 measurements) |
| Device Body | Impact-resistant plastic casing with rubber bumper for fall protection |
| Display | LCD TFT 3.5″, 320×480 px |
| PC Connection | USB for results processing and report generation |
| Power Supply | Rechargeable Li-Pol battery, 3.7V, 3000mAh |
| Work Duration | 9 hours of operation without recharging |
| Operating Temperature | -20 to +45 °C, without condensation |
1 x Portable Leeb Hardness tester MR-LH70
1 x Rebound probe type D
1 x Charger
1 x USB cable
1 x Test Block
1 x Carrying case
1 x Instruction manual
1 x NABL Calibration certificate (On additional charges)
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