Overview
The NDT280 + portable Leeb hardness tester is an innovative design product of the KAIRDA brand based on in-depth research on the Richter Hardness Measurement principle. On the basis of the existing data table, four kinds of hardness of materials have been added, including D-type Impact device alloy tool steel with HRA and HB; cast aluminum alloy HV item; C-type Impact device with cast aluminum alloy HV item, and developed the "User Material" function to meet users' testing needs for special materials and expand the use range of Leeb hardness tester. The product adopts a true color TFT LCD screen with USB interface, which can be connected to a computer for data processing.
Features
1. Designed according to the Richter Hardness Principle, using D-type High Accuracy Impact Device, High Accuracy Detection of Various Metal Materials;
2. The probe is plug and play, supporting manual setting and automatic identification of Impact device functions;
3. Built-in large-capacity lithium-ion rechargeable battery, can work continuously for not less than 150 hours, with automatic sleep, automatic shutdown power-saving functions;
4. It is convenient to switch all Hardness standards (HL, HB, HRB, HRC, HRA, HV, HS), and convert each Hardness measurement value in parallel;
5. Large screen (320 × 240) true color TFT LCD screen, WOINDOWS interface style, full Chinese display, user-friendly menu operation;
6. Add "forged steel (Steel) " material, which can directly read the HB value when testing with D/DC type Impact device, without manual table checking;
7. One host can be equipped with 7 different Impact devices, real-time automatic identification, no need to re-calibrate when replacing;
8. Large-capacity data storage, can store up to 600 sets of Hardness measurement data;
9. The upper limit and lower value can be preset, and the over-limit alarm can be set to facilitate batch testing;
10. Full sealing streamlined metal shell, durable, anti-vibration, Impact and electromagnetic interference ability;
11. Remaining power indicator icon, charging process indication;
12. Can be equipped with powerful microcomputer software to support transmission of measurement results, storage management, statistical analysis, printing reports;
13. Users can customize special material Linear dispersion to solve the limitations of ordinary Leeb hardness tester measurement materials;
14. Operator codes can be set.
Principle
The product is designed according to the Richter Hardness principle and uses a D-type High Accuracy Impact device to detect metal materials. Impact is generated on the surface of the material by the Impact device, and the ratio of the rebound speed to the Impact speed is measured to calculate the Hardness value, and it is automatically converted into a variety of Hardness standards. The design is based on the standard "Leeb hardness tester technical conditions" JB/T 9378-2001.
Applications
Machining industry, on-site hardness testing of large parts and non-removable parts, Hardness of installed machinery or irreversible assembled parts, Hardness of mold cavity, Hardness of heavy workpiece, Pressure Vessel, failure analysis of turbo-generator sets and their equipment, Hardness of workpieces with small experimental space, Hardness of bearings and other parts, material differentiation of metal material warehouses, rapid detection of multiple measurement parts in a wide range of large workpieces
Standards
"Leeb hardness tester technical conditions" JB/T 9378-2001
Steps
1. Connect the Impact device and ensure automatic identification or manual setting;
2. Select Material Type and Hardness Mode;
3. Align the probe vertically to the surface of the tested material for Impact test;
4. Read the measurement value on the display screen, you can view the single value, average value and other information;
5. Store data or transfer it to a computer via USB interface.
6. Set the upper and lower limits and alarm functions as required.
7. Turn off the power after use or let the device automatically sleep.
Notice
Ensure that the working environment is free from vibration, strong magnetic field, corrosive medium and serious dust;
* Operating temperature is -10 ℃~ + 55 ℃, storage temperature is -20 ℃~ + 75 ℃, relative humidity ≤ 90%;
The charging time is controlled at 2.5 to 4.5 hours to avoid overcharging.
* When used in a gray environment of light rays, the liquid crystal luminance can be adjusted;
* Impact device does not need to be re-calibrated when replacing, but it is necessary to ensure that the automatic identification is normal;
* Linear dispersion can be customized using the user's material function when testing special materials;
Check the battery level regularly to avoid long-term use under low power.
When storing data, pay attention to the limit of the number of groups, up to 600 groups.
