EH840 portable Leeb hardness tester is a new type of portable hardness testing equipment, mainly for fast hardness testing of metallic materials with high precision, small size, simple operation, easy to carry, long standby time, measuring a wide range of features, especially suitable for large components and moving parts of the site is not the hardness test. It is based on the principle of Leeb hardness can be easily and quickly measure a variety of metal materials, and can freely switch between different hardness standard, the product is fully enclosed metal housing, durable, and has excellent anti-magnetic, anti- vibration, anti-jamming capability. Advanced and stable military-chip, large-screen LCD display, full Chinese menu, simple and convenient. And various special-shaped support ring can be configured to meet a variety of test conditions and environment, and can fit all of the impact device shaped sensor without calibration, automatic identification. 5, two high-capacity alkaline battery-powered, portable, replaced by more flexible. And equipped with military-grade high-strength, impact resistance, super-sealed waterproof, moisture, dust, corrosion, resilience under pressure of professional equipment boxes, suitable for field work under harsh conditions. 
 Second, the functional characteristics: 
 ? completely sealed metal case, compact, portable, high reliability for harsh operating environment, anti-vibration, shock and electromagnetic interference performance, durable; 
 ? hardness measurements in accordance with the principle, can detect a variety of metal materials. Wide measuring range, the measured shape of the workpiece is not limited to support measurement of the direction of 360 degrees, and has shown the value of the boot software calibration function, more measurements in various industries to ensure that the different norms and standards is measured accurately. 
 ? system supports a variety of hardness's, Leeb (HL), Brinell (HB), Rockwell A (HRA), Rockwell B (HRB), Rockwell C (HRC), Vickers (HV), Shaw ( HS). Measured both before and after measurement of the hardness can be between the system's conversion. 
 ? No calibration automatically recognizes the impact of device type (D, DC, D +15, C, DL, E, G). The impact of seven shaped device and a full range of special-shaped support ring, to meet the different areas of greatest demand for testing products. 
 ? all Chinese large-screen LCD 128 × 64 dot matrix liquid crystal display, there is support for EL backlight, adjustable contrast display for easy in dimly lit environments. 
 ? host panel full Chinese menu, button design embodies the concept of humanity, one button to achieve the system's materials and hardness of any switch, easy and convenient. 
 ? maximum of 500 large-capacity storage groups (each impact times 32 ~ 1), hardness measurements, each measurement data, including single, average, measurement date, impact direction, frequency, material, hardness, and other information systems. Can be achieved using software connected to the computer mass storage. 
 ? hardness value can be pre-set upper and lower limits, out of range alarm, user-volume testing needs. 
 ? support "forged steel (Steel)" material, when using D / DC-type device to test the impact of "forged" sample, it can directly read the HB value, without manual look-up table. 
 ? "A key recovery" makes the instrument fully restored to its original factory state, need not worry about the misuse led to the emergence of most of the use of equipment; ? with automatic sleep, energy-saving features such as automatic shutdown, low-power design, two 5 alkaline batteries, convenient replacement, battery reliability is stronger. 
 ? two years free warranty (wearing, except for consumable parts), consumable, consumable parts at reasonable prices.